Alex is available for hire
Hire AlexAlex Baas
Verified Expert in Engineering
Full-stack Developer
Location
Berlin, Germany
Toptal Member Since
April 15, 2021
Alexander is a full-stack developer with over a decade of experience in software engineering. He specializes in high-performance data-driven apps with scalable back ends and has expertise in microservices and serverless architecture, database architecture, DevOps, cloud architecture, and data engineering. Alexander is proficient in JavaScript, TypeScript, React, Node.js, SQL, and NoSQL. He possesses strong project management skills, is certified in Scrum, and holds an MBA.
Portfolio
Redgrave Strategic Data Solutions, LLC
Retool, JavaScript, APIs, Large Language Models (LLMs)...
Elysium Health
Ruby on Rails (RoR), D3.js, PostgreSQL, Redis, Heroku...
Polymer Search, Inc.
JSON, Google Analytics 4, APIs, Business Intelligence (BI), REST APIs, Retool...
Experience
Availability
Part-time
Preferred Environment
Jira, Vim Text Editor, Linux, GitHub, Amazon Web Services (AWS), Google Cloud Platform (GCP), TypeScript, Python, Bash Script, SQLite
The most amazing...
...thing I've done was consolidating 30+ microservices GitLab repos into a single monorepo and building a CI/CD pipeline for efficient testing and deployment.
Work Experience
API Developer
2024 - 2024
Redgrave Strategic Data Solutions, LLC
- Pioneered a low-code Retool integration, enhancing operational efficiency by 30% and accelerating app deployment for a 27-member legal tech startup.
- Devised robust data engineering/monitoring solutions, reducing error rates by 25% and optimizing data workflow for complex legal analytics.
- Executed MLOps strategy for NLP, boosting model accuracy by 20% in automating legal document analysis for improved investigation outcomes.
Technologies: Retool, JavaScript, APIs, Large Language Models (LLMs), Machine Learning Operations (MLOps), Data Engineering, Data Visualization, Low Code, ChatGPT, LangChain, BigQuery
Full-stack Ruby on Rails Developer
2023 - 2024
Elysium Health
- Advanced eCommerce and DNA portal apps with a custom-built Ruby on Rails API, enabling 100% readiness for mobile app integration.
- Enhanced data visualization using D3.js, improving the user experience for DNA result interpretation, and increasing customer satisfaction by 20%.
- Developed an ETL pipeline that consolidated data across platforms, reducing data retrieval times by 40% for the eCommerce and DNA analysis apps.
- Implemented MLOps practices to streamline the DNA result analysis workflow, cutting model deployment time by 30% and improving predictive accuracy.
- Engineered a real-time data monitoring system, enhancing anomaly detection by 25%, which bolstered overall data integrity for customer portals.
Technologies: Ruby on Rails (RoR), D3.js, PostgreSQL, Redis, Heroku, Amazon Web Services (AWS), Auth0, Large Language Models (LLMs), LangChain, Machine Learning Operations (MLOps), BigQuery, Natural Language Processing (NLP), Data Build Tool (dbt), Fivetran, Looker, Grafana, Data Engineering, Data Visualization, ETL
Google Analytics 4 Expert
2023 - 2023
Polymer Search, Inc.
- Served as a CTO and crafted and executed a comprehensive technology roadmap aligned with the company's long-term vision, resulting in enhanced scalability and a 35% increase in system reliability through adopting cloud-native technologies.
- Developed and implemented a new data management strategy using Google Analytics 4, which improved data accuracy by 30% and enhanced the operational efficiency of data-driven decision-making processes across the company.
- Successfully integrated multiple complex APIs, including Salesforce, resulting in a 40% reduction in data retrieval time and streamlined reporting processes, thereby facilitating real-time business insight.
- Pioneered the incorporation of artificial intelligence and machine learning capabilities into the company's core products, driving a 45% improvement in customer engagement and personalization features.
Technologies: JSON, Google Analytics 4, APIs, Business Intelligence (BI), REST APIs, Retool, Bubble, Software Architecture, Change Management, Testing, API Testing, Node.js, TypeScript, Vue, IT Business Analysis, Business Analytics, Accessible Rich Internet Applications (ARIA), Accessibility, Embedded Business Intelligence, ChatGPT, OpenAI, Large Language Models (LLMs), Liquid, Shopify, FinOps, AWS Step Functions, CSV File Processing, Webflow
Full-stack Developer
2023 - 2023
NoNoxa Ltd
- Aided in the final development stages of the client's project using AWS, React, and TypeScript, effectively resulting in the on-time completion of an 80% done gambling platform.
- Optimized the gaming scoring system's data pipeline in AWS, increasing data processing efficiency by 35%.
- Leveraged machine learning algorithms to refine the game scoring system, enhancing prediction accuracy by 25%.
Technologies: Next.js, React, TypeScript, Amazon Web Services (AWS), AWS Amplify, AWS AppSync, Serverless, Serverless Architecture, Liquid, Shopify, FinOps, AWS Step Functions, Accessible Rich Internet Applications (ARIA), CSV File Processing, Accessibility, Google Analytics 4, Webflow, Bubble, IT Business Analysis, Business Analytics, Embedded Business Intelligence, ChatGPT
Full-stack Developer
2023 - 2023
Zevo Benefits, Inc.
- Integrated MNI Payment API on client's high-volume benefits administration platform, affecting over 10,000 transactions monthly.
- Engineered an efficient data pipeline, optimizing data extraction, transformation, and loading processes by 40%.
- Implemented a machine learning model to predict transaction discrepancies, improving system accuracy by 30%.
Technologies: HTML, Ruby on Rails (RoR), JavaScript, APIs, API Integration, PostgreSQL, jQuery, Payment APIs, Stripe, NMI Payment Gateway, Liquid, Shopify, FinOps, AWS Step Functions, Accessible Rich Internet Applications (ARIA), CSV File Processing, Accessibility, Webflow, IT Business Analysis, Business Analytics, Embedded Business Intelligence, ChatGPT
React/Python Developer
2023 - 2023
Pledged Inc
- Developed software architecture for a new fintech startup.
- Designed and prototyped RESTful API for an online mortgage service.
- Designed and prototyped PostgreSQL database schema for an online mortgage service.
Technologies: React, JavaScript, TypeScript, Python, API Design, Progressive Web Applications (PWA), AWS Lambda, Flask, LocalStorage, Architecture, Web Architecture, API Architecture, REST, RESTful Web Services, RESTful Development, RESTful Services, Software Architecture, System Design, Postman, Software Design, Team Leadership, Projects, Database Design, DB, Database Architecture, Engineering, Web Applications, Data-driven Decision-making, B2B, Nuxt.js, Google, Microsoft, Cybersecurity, Networks, Offshore Team Management, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, Amazon Simple Email Service (SES), AWS STS, AWS SDK, Typeform, Typeform.io, Microsoft Power Automate, Microsoft Power Apps, Microsoft Power BI, Lead Generation, CRM Systems, Process Flows, Excel 365, Microsoft Forms, Data Management, Database Schema Design, AWS AppSync, Code Review, Estimations, Slim, Retool, Google Sheets, Shopify, AWS Step Functions, Accessible Rich Internet Applications (ARIA), CSV File Processing, Accessibility, Google Analytics 4, IT Business Analysis, Business Analytics, Embedded Business Intelligence, ChatGPT
Analytics Data Engineer
2022 - 2023
iptiQ Life S.A. UK Branch
- Migrated over 50 independent GitLab repositories to a single monorepo.
- Created a unique CI/CD pipeline serving over 50 independent microservices inside one monorepo.
- Designed and implemented a complex monitoring infrastructure, including over 20 Grafana dashboards for business and IT analytics.
Technologies: SQL, Python, GitLab, SonarQube, Atlassian, ETL, DevOps, GitLab CI/CD, ETL Tools, Grafana, Prometheus, Data Pipelines, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Data Integration, Snowflake, Apache Airflow, Kubernetes, Presto, Amazon Athena, AWS Glue, Superset, Apache Superset, Metabase, SEO Tools, Google Analytics, Google BigQuery, Google Analytics API, BigQuery, Spark, Quality Assurance (QA), Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, QA Automation, Data Analytics, Dashboards, Monitoring, Terraform, Amazon CloudWatch, ESLint, Business Intelligence (BI), Data Warehousing, Data Architecture, Database Architecture, Data Science, Database Design, Financial Modeling, Investment Analysis, Business Analysis, Reporting, Workday, Redis Cache, WebSockets, Amazon CloudFront CDN, Redshift, Front-end Architecture, MERN Stack, DOM, Software Design, Mobile, Technical Leadership, Scalable Architecture, Amazon Web Services (AWS), eCommerce, Security, IT Security, Databases, Cloud Architecture, Web Scraping, Networking, User Interface (UI), Pandas, Leadership, Responsive Web Design (RWD), D3.js, Computer Vision, Chatbots, Web Design, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data, DevOps Engineer, Bootstrap, Netlify, Apollo, Scalability, Cryptography, Zoho, API Testing, Project Management, SaaS, Scraping, Continuous Integration (CI), Microsoft Access, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud Architecture, Responsive UI, Authentication, DigitalOcean, User Experience (UX), Site Reliability Engineering (SRE), Web UI, Business Services, Third-party APIs, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Development, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Cloud, Infrastructure, API Design, Amazon API Gateway, Shell Scripting, Statistical Analysis, Amazon, Webhooks, Reverse Engineering, Marketplaces, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS CloudFormation, Data-oriented Design, Consulting, Data Protection, Data Scraping, Data Structures, HTTP API, Cloud Services, API Architecture, Database Administration (DBA), Best Practices, Low-code Development, Ruby, Ruby on Rails (RoR), Vim Text Editor, MacOS, Slack, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue, Postman, OpenAPI, Data Migration, Data, Sequelize, Docker Compose, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, Lambda Functions, AWS Lambda, Storybook, Webpack, Create React App, Lighthouse, jQuery, Object-oriented Programming (OOP), GitHub API, RSpec, minitest, Localization, Web Security, ActiveRecord, Chrome Extensions, JSON Web Tokens (JWT), Encryption, Data Encryption, End-to-end Implementation (E2E), Context API, Web App Development, Database-driven Web App Development, Payment APIs, Stripe API, Stripe Connect, BrainTree, Braintree API, Bots, Twilio API, Web Components, Lit, Svelte, Customer Relationship Management (CRM), Django, Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, Single Sign-on (SSO), Cloud Firestore, Test-driven Development (TDD), Software Project Management, Change Management, Entrepreneurship, Heroku, Linux, Amazon DynamoDB, Cypress, CircleCI, Website Performance, Next.js, GraphQL, Ajax, Architecture, Microservices Architecture, Software Architecture, JSON, Database Modeling, Prisma, Redis, Solution Architecture, Data Engineering, Google Cloud, Algorithms, MySQL, MongoDB, Docker, Azure, Monorepos, PWA, Startup Consulting, MVP Design, UI Design, UX Design, Sass, Documentation, Scrum, Git Flow, React Native, Expo, Single-page Applications (SPA), Responsive Web Apps, Responsive Layout, Minimum Viable Product (MVP), Healthcare IT, AWS Amplify, Hospitality, Generative Pre-trained Transformers (GPT), GPT, Natural Language Processing (NLP), Google Cloud Natural Language, WordPress, Gatsby, Stripe, Booking Apps, RabbitMQ, AWS IoT, Go, JavaScript, Progressive Web Applications (PWA), Node.js, React, NoSQL, TypeScript, Tailwind CSS, Styled-components, PostgreSQL, Agile Software Development, Firebase, Jira, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Forms, OpenAI, Low Code, YAML, Neo4j, Integration, RESTful Services, Windows, Artificial Intelligence (AI), Large Language Models (LLMs), Language Models, Web Applications, Data-driven Decision-making, B2B, Nuxt.js, Google, Microsoft, Cybersecurity, Networks, Offshore Team Management, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, Amazon Simple Email Service (SES), AWS STS, AWS SDK, RESTful Web Services, RESTful Development, System Design, Projects, DB, Engineering, Typeform, Typeform.io, Garmin API, Fitbit API, Microsoft Power Automate, Microsoft Power Apps, Microsoft Power BI, Lead Generation, CRM Systems, Process Flows, Excel 365, Microsoft Forms, Data Management, Database Schema Design, Code Review, Estimations, Slim, Retool, Google Sheets, FinOps, AWS Step Functions, CSV File Processing, Accessibility, IT Business Analysis, Business Analytics, ChatGPT
Senior Full-stack Software Engineer | Database Architect
2021 - 2022
Storyroom
- Helped develop an AI-based digital marketing agency specializing in extensive data analysis.
- Designed and implemented PostgreSQL database architecture.
- Introduced integration testing to improve code quality.
- Refactored legacy code and improved server performance by 50%.
Technologies: JavaScript, TypeScript, Vue, Agile, Git, GitHub, Front-end, Back-end, Full-stack, Data Modeling, Data Engineering, PostgreSQL, Redis, Amazon DynamoDB, Amazon S3 (AWS S3), API Gateways, HTML, HTML5, CSS, User Interface (UI), Postman, Swagger, OpenAPI, Web Development, Ajax, Prototyping, APIs, REST, REST APIs, GraphQL, Node.js, Microservices, Architecture, Unit Testing, Integration Testing, QA Testing, Express.js, Data Migration, Data, Sequelize, Microservices Architecture, API Integration, Algorithms, Solution Architecture, MySQL, SQL, NoSQL, JSON, MongoDB, Database Modeling, RDBMS, Relational Databases, Amazon Web Services (AWS), Amazon RDS, Docker, Docker Compose, Azure, CI/CD Pipelines, Pipelines, Firebase, Google Cloud Platform (GCP), Linux, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, Lambda Functions, AWS Lambda, Cloud, Startups, Google Cloud, Full-stack Development, User Experience (UX), Performance, Documentation, Scrum, Git Flow, Front-end Development, ECMAScript (ES6), Atlassian, ETL, GitLab, Python, Responsive Web Apps, Responsive Layout, Minimum Viable Product (MVP), AWS Amplify, Grafana, Prometheus, Data Pipelines, DevOps, GitLab CI/CD, ETL Tools, Bash, Bash Script, Kibana, Elasticsearch, Data Analysis, Data Visualization, Data Integration, Snowflake, Apache Airflow, Kubernetes, Revenue Management, Presto, AWS Glue, Superset, Apache Superset, Metabase, SEO Tools, Google Analytics, Google BigQuery, Google Analytics API, BigQuery, Spark, SonarQube, Natural Language Processing (NLP), Generative Pre-trained Transformers (GPT), GPT, Google Cloud Natural Language, Quality Assurance (QA), Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, QA Automation, Data Analytics, Dashboards, Monitoring, Terraform, Amazon CloudWatch, ESLint, Early-stage Startups, Finance, Fintech, Business Intelligence (BI), Data Warehousing, Data Architecture, Database Architecture, Data Science, Database Design, Financial Modeling, Investment Analysis, Business Analysis, Financial Planning & Analysis (FP&A), Reporting, Workday, Redis Cache, Amazon CloudFront CDN, Web Performance Optimization (WPO), Google SEO, Search Engine Optimization (SEO), Redshift, Front-end Architecture, MERN Stack, DOM, Software Design, Mobile, Technical Leadership, Scalable Architecture, eCommerce, Security, IT Security, Databases, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design (RWD), D3.js, Computer Vision, Chatbots, Web Design, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data, DevOps Engineer, Bootstrap, Netlify, Apollo, Scalability, Cryptography, Zoho, API Testing, Project Management, SaaS, Scraping, Continuous Integration (CI), Microsoft Access, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud Architecture, Responsive UI, Authentication, DigitalOcean, Site Reliability Engineering (SRE), Web UI, Business Services, Third-party APIs, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Development, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Cloud, Infrastructure, API Design, Amazon API Gateway, Shell Scripting, Statistical Analysis, Amazon, Webhooks, Reverse Engineering, Marketplaces, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS CloudFormation, Data-oriented Design, Consulting, Data Protection, Data Scraping, Data Structures, HTTP API, Cloud Services, API Architecture, Database Administration (DBA), Best Practices, Low-code Development, Ruby, Ruby on Rails (RoR), Vim Text Editor, MacOS, Slack, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Storybook, Webpack, Create React App, Lighthouse, jQuery, Object-oriented Programming (OOP), GitHub API, RSpec, minitest, Localization, Web Security, ActiveRecord, Chrome Extensions, JSON Web Tokens (JWT), Encryption, Data Encryption, End-to-end Implementation (E2E), Context API, Web App Development, Database-driven Web App Development, Payment APIs, Stripe API, Stripe Connect, BrainTree, Braintree API, Bots, Twilio API, Web Components, Lit, Svelte, Customer Relationship Management (CRM), Django, Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, Single Sign-on (SSO), Cloud Firestore, Test-driven Development (TDD), Software Project Management, Change Management, Entrepreneurship, Heroku, Cypress, CircleCI, Website Performance, Next.js, Software Architecture, Prisma, Monorepos, PWA, Startup Consulting, MVP Design, UI Design, UX Design, Sass, React Native, Expo, Single-page Applications (SPA), Healthcare IT, SQLite, Hospitality, WordPress, Gatsby, Stripe, Booking Apps, RabbitMQ, WebSockets, AWS IoT, Go, Progressive Web Applications (PWA), React, Tailwind CSS, Styled-components, Agile Software Development, Jira, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Forms, OpenAI, Low Code, YAML, Neo4j, Integration, RESTful Services, Windows, Artificial Intelligence (AI), Large Language Models (LLMs), Language Models, Web Applications, Data-driven Decision-making, B2B, Nuxt.js, Google, Microsoft, Cybersecurity, Networks, Offshore Team Management, Discord Bots, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, Amazon Simple Email Service (SES), AWS STS, AWS SDK, RESTful Web Services, RESTful Development, System Design, Projects, DB, Engineering, Typeform, Typeform.io, Microsoft Power Automate, Microsoft Power Apps, Microsoft Power BI, Lead Generation, CRM Systems, Process Flows, Excel 365, Microsoft Forms, Data Management, Database Schema Design, AWS AppSync, Code Review, Estimations, Slim, Retool, Google Sheets, AWS Step Functions, Accessible Rich Internet Applications (ARIA), CSV File Processing, Accessibility, IT Business Analysis, Business Analytics, ChatGPT
Senior Full-stack Software Engineer
2020 - 2022
CoachHub
- Helped to develop the leading global talent development platform used by millions of users worldwide.
- Introduced and implemented test-driven development practices to improve code quality.
- Assisted in developing a CI/CD pipeline to speed up the product release cycle.
Technologies: JavaScript, TypeScript, HTML, HTML5, CSS, Agile, Jira, Git, GitHub, React, Next.js, NestJS, TypeORM, Prisma, PostgreSQL, Redis, Node.js, Express.js, User Interface (UI), Ajax, Tailwind CSS, Material UI, Figma, Styled-components, Redux, React Redux, Front-end, Back-end, Full-stack, Web Development, Prototyping, Cypress, Unit Testing, Integration Testing, QA Testing, APIs, REST, REST APIs, Microservices, Microservices Architecture, Serverless, Serverless Architecture, API Integration, Software Architecture, API Gateways, Solution Architecture, Swagger, SQL, NoSQL, JSON, Amazon RDS, Heroku, Data Modeling, Data Engineering, RDBMS, Relational Databases, Contentful, Amazon Web Services (AWS), CI/CD Pipelines, Amazon S3 (AWS S3), Google Cloud Platform (GCP), Cloud, Startups, Google Cloud, Storybook, Full-stack Development, Design, User Experience (UX), Performance, Documentation, Scrum, Git Flow, Front-end Development, ECMAScript (ES6), React Native, Expo, Atlassian, GitLab, Single-page Applications (SPA), PWA, Progressive Web Applications (PWA), Responsive Web Apps, Minimum Viable Product (MVP), Responsive Layout, Customer Relationship Management (CRM), Auth0, Auth0 API, Auth0 Management API v2, Single Sign-on (SSO), DevOps, GitLab CI/CD, ETL Tools, Grafana, Prometheus, Data Pipelines, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Data Integration, Snowflake, Apache Airflow, Kubernetes, Presto, Amazon Athena, AWS Glue, Superset, Apache Superset, Metabase, SEO Tools, Google Analytics, Google BigQuery, Google Analytics API, BigQuery, Spark, SonarQube, Quality Assurance (QA), Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, QA Automation, Data Analytics, Dashboards, Monitoring, Terraform, Amazon CloudWatch, ESLint, Twilio, Booking Systems, Early-stage Startups, Appointment Booking, Booking Apps, Data Warehousing, Data Architecture, Database Architecture, Data Science, Database Design, Microsoft Excel, A/B Testing, Landing Pages, RabbitMQ, Reporting, Workday, Redis Cache, WebSockets, Amazon CloudFront CDN, Web Performance Optimization (WPO), Google SEO, Search Engine Optimization (SEO), Redshift, Front-end Architecture, MERN Stack, DOM, Software Design, Mobile, Technical Leadership, Scalable Architecture, eCommerce, Security, IT Security, Databases, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design (RWD), D3.js, Computer Vision, Chatbots, Web Design, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data, DevOps Engineer, Bootstrap, Netlify, Apollo, Scalability, Cryptography, Zoho, API Testing, Project Management, SaaS, Scraping, Continuous Integration (CI), Microsoft Access, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud Architecture, Responsive UI, Authentication, DigitalOcean, Site Reliability Engineering (SRE), Web UI, Business Services, Third-party APIs, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Development, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Cloud, Infrastructure, API Design, Amazon API Gateway, Shell Scripting, Statistical Analysis, Amazon, Webhooks, Reverse Engineering, Marketplaces, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS CloudFormation, Data-oriented Design, Consulting, Data Protection, Data Scraping, Data Structures, HTTP API, Cloud Services, API Architecture, Database Administration (DBA), Best Practices, Low-code Development, Ruby, Ruby on Rails (RoR), Vim Text Editor, MacOS, Slack, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, Vue, Postman, OpenAPI, Data Migration, Data, Sequelize, Docker Compose, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, Lambda Functions, AWS Lambda, Webpack, Create React App, Lighthouse, jQuery, Object-oriented Programming (OOP), GitHub API, RSpec, minitest, Localization, Web Security, ActiveRecord, Chrome Extensions, JSON Web Tokens (JWT), Encryption, Data Encryption, End-to-end Implementation (E2E), Context API, Web App Development, Database-driven Web App Development, Payment APIs, Stripe API, Stripe Connect, BrainTree, Braintree API, Bots, Twilio API, Web Components, Lit, Svelte, Django, Healthcare Management Systems, Cloud Firestore, Test-driven Development (TDD), Software Project Management, Change Management, Entrepreneurship, Linux, Amazon DynamoDB, CircleCI, Website Performance, GraphQL, Architecture, Database Modeling, Algorithms, MySQL, MongoDB, Docker, Azure, Monorepos, Startup Consulting, MVP Design, UI Design, UX Design, Sass, Python, ETL, Healthcare IT, AWS Amplify, Hospitality, Generative Pre-trained Transformers (GPT), GPT, Natural Language Processing (NLP), Google Cloud Natural Language, WordPress, Gatsby, Stripe, AWS IoT, Go, Agile Software Development, Firebase, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Forms, OpenAI, Low Code, YAML, Neo4j, Integration, RESTful Services, Windows, Artificial Intelligence (AI), Large Language Models (LLMs), Language Models, Web Applications, Data-driven Decision-making, B2B, Nuxt.js, Google, Microsoft, Cybersecurity, Networks, Offshore Team Management, Discord Bots, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, Amazon Simple Email Service (SES), AWS STS, AWS SDK, RESTful Web Services, RESTful Development, System Design, Projects, DB, Engineering, Typeform, Typeform.io, Garmin API, Fitbit API, Lead Generation, CRM Systems, Process Flows, Excel 365, Microsoft Forms, Microsoft Power Apps, Microsoft Power Automate, Data Management, Database Schema Design, AWS AppSync, Estimations, Slim, Retool, Google Sheets, AWS Step Functions, Accessible Rich Internet Applications (ARIA), IT Business Analysis, Business Analytics
Senior Full-stack Software Engineer
2020 - 2021
Ovio
- Contributed to developing a community platform created to help developers find open source projects that align with their skills and values.
- Improved Lighthouse performance score from 20% to 90%.
- Established best practices for progressive web applications (PWAs) and increased Lighthouse PWA score from 0% to 100%.
- Optimized web app dependencies management and reduced app bundle size by 50%.
- Introduced and implemented test-driven development (TDD) practices to improve code quality.
Technologies: HTML, HTML5, CSS, Tailwind CSS, Styled-components, Webpack, Create React App, Next.js, React, Redux, React Redux, Website Performance, Lighthouse, Unit Testing, Integration Testing, QA Testing, CI/CD Pipelines, Pipelines, Cypress, Jest, Agile, Git, GitHub, CircleCI, Front-end, Back-end, Full-stack, APIs, REST, REST APIs, Microservices, Microservices Architecture, Architecture, User Experience (UX), User Interface (UI), Solution Architecture, Amazon S3 (AWS S3), Amazon RDS, RDBMS, Relational Databases, Google Cloud Platform (GCP), Google Cloud, Firebase, GraphQL, SQL, NoSQL, Material UI, JavaScript, TypeScript, jQuery, Web Development, Ajax, Prototyping, Node.js, Express.js, Object-oriented Programming (OOP), API Integration, Software Architecture, API Gateways, Monorepos, Swagger, MySQL, PostgreSQL, Amazon DynamoDB, MongoDB, Data Modeling, Data Engineering, Prisma, JSON, GitHub API, Docker, Amazon Web Services (AWS), Azure, Startups, Full-stack Development, Performance, Documentation, Scrum, Git Flow, Front-end Development, ECMAScript (ES6), GitLab, Atlassian, Python, Single-page Applications (SPA), Progressive Web Applications (PWA), PWA, DevOps, GitLab CI/CD, Bash, Bash Script, Data Visualization, Data Analysis, Data Integration, Snowflake, Apache Airflow, Kubernetes, Amazon Athena, AWS Glue, Superset, Apache Superset, Metabase, SEO Tools, Google Analytics, Google BigQuery, Google Analytics API, BigQuery, Spark, SonarQube, Quality Assurance (QA), Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, QA Automation, Data Analytics, Dashboards, Monitoring, Amazon CloudWatch, ESLint, Stripe, Twilio, Booking Systems, Early-stage Startups, Appointment Booking, Booking Apps, Data Architecture, Database Architecture, Data Science, Database Design, Microsoft Excel, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, Financial Planning & Analysis (FP&A), Reporting, Redis Cache, WebSockets, Amazon CloudFront CDN, Web Performance Optimization (WPO), Google SEO, Search Engine Optimization (SEO), Redshift, Front-end Architecture, MERN Stack, DOM, Software Design, Mobile, Technical Leadership, Scalable Architecture, eCommerce, Security, IT Security, Databases, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design (RWD), D3.js, Computer Vision, Chatbots, Web Design, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data, DevOps Engineer, Bootstrap, Netlify, Apollo, Scalability, Cryptography, Zoho, API Testing, Project Management, SaaS, Scraping, Continuous Integration (CI), Microsoft Access, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud Architecture, Responsive UI, Authentication, DigitalOcean, Site Reliability Engineering (SRE), Web UI, Business Services, Third-party APIs, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Development, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Cloud, Infrastructure, API Design, Amazon API Gateway, Shell Scripting, Statistical Analysis, Amazon, Webhooks, Reverse Engineering, Marketplaces, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS CloudFormation, Data-oriented Design, Consulting, Data Protection, Data Scraping, Data Structures, HTTP API, Cloud Services, API Architecture, Database Administration (DBA), Best Practices, Low-code Development, Ruby, Ruby on Rails (RoR), Vim Text Editor, MacOS, Slack, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue, Postman, OpenAPI, Data Migration, Data, Sequelize, Docker Compose, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, Lambda Functions, AWS Lambda, Storybook, RSpec, minitest, Localization, Web Security, ActiveRecord, Chrome Extensions, JSON Web Tokens (JWT), Encryption, Data Encryption, End-to-end Implementation (E2E), Context API, Web App Development, Database-driven Web App Development, Payment APIs, Stripe API, Stripe Connect, BrainTree, Braintree API, Bots, Twilio API, Web Components, Lit, Svelte, Customer Relationship Management (CRM), Django, Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, Single Sign-on (SSO), Cloud Firestore, Test-driven Development (TDD), Software Project Management, Change Management, Entrepreneurship, Heroku, Linux, Database Modeling, Redis, Algorithms, Startup Consulting, MVP Design, UI Design, UX Design, Sass, React Native, Expo, ETL, Responsive Web Apps, Responsive Layout, Minimum Viable Product (MVP), Healthcare IT, AWS Amplify, Data Pipelines, ETL Tools, Grafana, Prometheus, Elasticsearch, Kibana, SQLite, Hospitality, Presto, Natural Language Processing (NLP), GPT, Generative Pre-trained Transformers (GPT), Google Cloud Natural Language, Terraform, WordPress, Gatsby, RabbitMQ, Workday, AWS IoT, Go, Agile Software Development, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Forms, Low Code, YAML, Integration, RESTful Services, Windows, Artificial Intelligence (AI), Large Language Models (LLMs), Language Models, Web Applications, Data-driven Decision-making, B2B, Nuxt.js, Google, Microsoft, Cybersecurity, Networks, Offshore Team Management, Discord Bots, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, Amazon Simple Email Service (SES), AWS STS, AWS SDK, RESTful Web Services, RESTful Development, System Design, Projects, DB, Engineering, Typeform, Microsoft Power Automate, Microsoft Power Apps, Microsoft Power BI, Lead Generation, CRM Systems, Process Flows, Excel 365, Microsoft Forms, Data Management, Database Schema Design, Estimations, Slim, Retool, Google Sheets, Accessible Rich Internet Applications (ARIA)
Senior Full-stack Software Engineer
2019 - 2021
Doctolib
- Enabled end-to-end encryption for 10,000,000 documents.
- Adjusted an application interface for a new market in Italy.
- Initiated and led the refactoring process, resulting in fewer critical bugs by less than 20%.
Technologies: JavaScript, TypeScript, React, Node.js, SQL, PostgreSQL, Amazon Web Services (AWS), Tailwind CSS, Agile Software Development, Styled-components, Test-driven Development (TDD), Ruby, Ruby on Rails (RoR), CSS, HTML, Vanilla JS, Jest, Testing, Express.js, Cypress, CircleCI, GitHub Actions, Website Performance, Refactoring, Dependency Management, Next.js, GraphQL, Redux, HTML5, Material UI, Agile, Git, GitHub, Amazon S3 (AWS S3), RDBMS, Relational Databases, RSpec, minitest, Figma, React Redux, User Interface (UI), Localization, Unit Testing, Integration Testing, QA Testing, CI/CD Pipelines, Pipelines, Web Development, Web Security, APIs, REST APIs, ActiveRecord, REST, Chrome Extensions, Monorepos, Redis, JSON Web Tokens (JWT), Encryption, Data Encryption, End-to-end Implementation (E2E), Front-end, Back-end, Full-stack, Full-stack Development, User Experience (UX), Performance, Design, Documentation, Scrum, Git Flow, Front-end Development, ECMAScript (ES6), React Native, Expo, Healthcare IT, Responsive Layout, Responsive Web Apps, Healthcare Management Systems, Data Integration, Snowflake, Apache Airflow, Kubernetes, Revenue Management, Presto, Amazon Athena, AWS Glue, Superset, Apache Superset, Metabase, SEO Tools, Google Analytics, Google Analytics API, BigQuery, Spark, SonarQube, GPT, Natural Language Processing (NLP), Generative Pre-trained Transformers (GPT), Google Cloud Natural Language, Quality Assurance (QA), Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, QA Automation, Amazon CloudWatch, ESLint, Stripe, Twilio, Booking Systems, Early-stage Startups, Appointment Booking, Fintech, Booking Apps, Business Intelligence (BI), Data Warehousing, Data Architecture, Database Architecture, Data Science, Database Design, Microsoft Excel, Financial Modeling, Business Analysis, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, RabbitMQ, Financial Planning & Analysis (FP&A), Reporting, Redis Cache, Amazon CloudFront CDN, Web Performance Optimization (WPO), Google SEO, Search Engine Optimization (SEO), Redshift, Front-end Architecture, MERN Stack, Go, DOM, Software Design, Technical Leadership, Scalable Architecture, eCommerce, Security, IT Security, Databases, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design (RWD), D3.js, Computer Vision, Chatbots, Web Design, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data, DevOps Engineer, Bootstrap, Netlify, Apollo, Scalability, Cryptography, Zoho, API Testing, Project Management, SaaS, Scraping, Continuous Integration (CI), Microsoft Access, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud Architecture, Responsive UI, Authentication, DigitalOcean, Site Reliability Engineering (SRE), Web UI, Business Services, Third-party APIs, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Development, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Cloud, Infrastructure, API Design, Amazon API Gateway, Shell Scripting, Statistical Analysis, Amazon, Webhooks, Reverse Engineering, Marketplaces, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS CloudFormation, Data-oriented Design, Consulting, Data Protection, Data Scraping, Data Structures, HTTP API, Cloud Services, API Architecture, Database Administration (DBA), Best Practices, Low-code Development, Vim Text Editor, MacOS, Slack, SAP ERP, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue, Postman, OpenAPI, Data Migration, Data, Sequelize, Docker Compose, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, Lambda Functions, AWS Lambda, Storybook, Webpack, Create React App, Lighthouse, jQuery, Object-oriented Programming (OOP), GitHub API, Context API, Web App Development, Database-driven Web App Development, Payment APIs, Stripe API, Stripe Connect, BrainTree, Braintree API, Bots, Twilio API, Web Components, Lit, Svelte, Customer Relationship Management (CRM), Django, Auth0, Auth0 API, Auth0 Management API v2, Single Sign-on (SSO), Cloud Firestore, Software Project Management, Change Management, Entrepreneurship, Heroku, Linux, Amazon DynamoDB, Ajax, Architecture, Microservices Architecture, Software Architecture, JSON, Database Modeling, Prisma, Solution Architecture, Data Engineering, Google Cloud, Algorithms, MySQL, MongoDB, Docker, Azure, PWA, Startup Consulting, MVP Design, UI Design, UX Design, Sass, GitLab, Atlassian, Python, ETL, Single-page Applications (SPA), Minimum Viable Product (MVP), AWS Amplify, GitLab CI/CD, Data Pipelines, ETL Tools, Grafana, Prometheus, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Hospitality, Google BigQuery, Data Analytics, Dashboards, Monitoring, Terraform, WordPress, Gatsby, Workday, WebSockets, AWS IoT, Progressive Web Applications (PWA), NoSQL, Firebase, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Forms, Low Code, YAML, Neo4j, Integration, RESTful Services, Windows, Artificial Intelligence (AI), Large Language Models (LLMs), Language Models, Web Applications, Data-driven Decision-making, B2B, Google, Microsoft, Cybersecurity, Networks, Offshore Team Management, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, Amazon Simple Email Service (SES), AWS STS, AWS SDK, Flask, RESTful Web Services, RESTful Development, System Design, Projects, DB, Engineering, Garmin API, Fitbit API, Lead Generation, CRM Systems, Process Flows, Excel 365, Microsoft Forms, Microsoft Power Apps, Microsoft Power Automate, Data Management, Database Schema Design, AWS AppSync, Code Review, Estimations, Slim, Retool, Google Sheets, Accessible Rich Internet Applications (ARIA)
Full-stack Software Engineer
2018 - 2019
Wellian
- Built a React interface for an online healthcare marketplace enabled with Alexa skills.
- Designed and implemented a REST API gateway on top of AWS DynamoDB.
- Migrated server code from Java to Node.js with zero downtime.
Technologies: JavaScript, React, Node.js, Amazon DynamoDB, Amazon Web Services (AWS), Progressive Web Applications (PWA), NoSQL, TypeScript, Agile Software Development, CSS, HTML, Vanilla JS, Test-driven Development (TDD), Express.js, Jest, HTML5, Material UI, Agile, Git, GitHub, API Gateways, REST, REST APIs, Microservices, PostgreSQL, Unit Testing, Integration Testing, QA Testing, API Integration, Redux, Context API, User Experience (UX), User Interface (UI), Web Development, Web App Development, Database-driven Web App Development, PWA, Swagger, Firebase, Amazon S3 (AWS S3), Amazon RDS, RDBMS, Startups, Front-end, Back-end, Full-stack, Startup Consulting, MVP Design, Full-stack Development, Front-end Development, ECMAScript (ES6), Minimum Viable Product (MVP), Python, Django, Healthcare IT, AWS Amplify, Hospitality, Revenue Management, SEO Tools, Google Analytics, Google Analytics API, Google Cloud Natural Language, GPT, Natural Language Processing (NLP), Generative Pre-trained Transformers (GPT), Quality Assurance (QA), Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, QA Automation, WordPress, Gatsby, ESLint, Stripe, Twilio, Booking Systems, Early-stage Startups, Appointment Booking, Finance, Fintech, Booking Apps, Business Intelligence (BI), Microsoft Excel, Financial Modeling, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, Financial Planning & Analysis (FP&A), Reporting, Amazon CloudFront CDN, AWS IoT, Web Performance Optimization (WPO), Google SEO, Search Engine Optimization (SEO), Go, DOM, Software Design, Mobile, Technical Leadership, Scalable Architecture, eCommerce, Security, IT Security, Databases, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design (RWD), D3.js, Computer Vision, Chatbots, Web Design, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data, DevOps Engineer, Bootstrap, Netlify, Apollo, Scalability, Cryptography, Zoho, API Testing, Project Management, SaaS, Scraping, Continuous Integration (CI), Microsoft Access, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud Architecture, Responsive UI, Authentication, DigitalOcean, Site Reliability Engineering (SRE), Web UI, Business Services, Third-party APIs, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Development, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Cloud, Infrastructure, API Design, Amazon API Gateway, Shell Scripting, Statistical Analysis, Amazon, Webhooks, Reverse Engineering, Marketplaces, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS CloudFormation, Data-oriented Design, Consulting, Data Protection, Data Scraping, Data Structures, HTTP API, Cloud Services, API Architecture, Database Administration (DBA), Best Practices, Low-code Development, Ruby, Ruby on Rails (RoR), Vim Text Editor, MacOS, Slack, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue, Postman, OpenAPI, Data Migration, Data, Sequelize, Docker Compose, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, Lambda Functions, AWS Lambda, Storybook, Webpack, Create React App, Lighthouse, jQuery, Object-oriented Programming (OOP), GitHub API, RSpec, minitest, Localization, Web Security, ActiveRecord, Chrome Extensions, JSON Web Tokens (JWT), Encryption, Data Encryption, End-to-end Implementation (E2E), Payment APIs, Stripe API, Stripe Connect, BrainTree, Braintree API, Bots, Twilio API, Web Components, Lit, Svelte, Customer Relationship Management (CRM), Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, Single Sign-on (SSO), Cloud Firestore, Software Project Management, Change Management, Entrepreneurship, Heroku, Linux, Cypress, CircleCI, Website Performance, Next.js, GraphQL, Ajax, Architecture, Microservices Architecture, Software Architecture, JSON, Database Modeling, Prisma, Redis, Solution Architecture, Data Engineering, Google Cloud, Algorithms, MySQL, MongoDB, Docker, Azure, Monorepos, UI Design, UX Design, Sass, Documentation, Scrum, Git Flow, React Native, Expo, GitLab, Atlassian, ETL, Single-page Applications (SPA), Responsive Web Apps, Responsive Layout, GitLab CI/CD, Data Pipelines, ETL Tools, Grafana, Prometheus, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Presto, Google BigQuery, Data Analytics, Dashboards, Monitoring, Terraform, RabbitMQ, Workday, WebSockets, SQL, Tailwind CSS, Styled-components, ELT, ETL Development, LocalStorage, Responsive Design, Web Forms, Low Code, YAML, Integration, RESTful Services, Windows, Flask, RESTful Development, RESTful Web Services, System Design, DB, Engineering, Garmin API, Fitbit API, Microsoft Power Automate, Microsoft Power Apps, Microsoft Power BI, Process Flows, Accessible Rich Internet Applications (ARIA)
Full-stack Software Engineer
2014 - 2018
Dropbyke
- Developed a cross-platform app for an electric-scooter-sharing project.
- Built a cross-functional project team and set up the software engineering culture using the agile methodology.
- Scaled up the project from 0 to 10,000 users in five different countries.
Technologies: JavaScript, Progressive Web Applications (PWA), React, SQL, PostgreSQL, Amazon Web Services (AWS), Cloud Firestore, NoSQL, Agile Software Development, Change Management, Software Project Management, Entrepreneurship, CSS, Firebase, HTML, Vanilla JS, Express.js, Jest, Payment APIs, Stripe API, Stripe Connect, BrainTree, Braintree API, HTML5, Redux, React Redux, Amazon S3 (AWS S3), Amazon RDS, Agile, Git, GitHub, User Interface (UI), REST, REST APIs, Microservices, Unit Testing, Integration Testing, QA Testing, Data Modeling, Data Engineering, Front-end, Back-end, Full-stack, Startup Consulting, MVP Design, Full-stack Development, Design, User Experience (UX), Performance, UI Design, UX Design, Sass, Bots, Twilio API, Data Integration, Snowflake, Hospitality, Revenue Management, Amazon Athena, SEO Tools, Google Analytics, Google Analytics API, Quality Assurance (QA), Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, QA Automation, WordPress, Gatsby, ESLint, Stripe, Twilio, Booking Systems, Early-stage Startups, Appointment Booking, Finance, Fintech, Business Intelligence (BI), Data Warehousing, Microsoft Excel, Financial Modeling, Investment Analysis, Business Analysis, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, RabbitMQ, Financial Planning & Analysis (FP&A), Reporting, AWS IoT, Web Performance Optimization (WPO), Google SEO, Search Engine Optimization (SEO), Front-end Architecture, Go, DOM, Software Design, Mobile, Technical Leadership, Scalable Architecture, eCommerce, Security, IT Security, Databases, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design (RWD), D3.js, Computer Vision, Chatbots, Web Design, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data, DevOps Engineer, Bootstrap, Netlify, Apollo, Scalability, Cryptography, Zoho, API Testing, Project Management, SaaS, Scraping, Continuous Integration (CI), Microsoft Access, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud Architecture, Responsive UI, Authentication, DigitalOcean, Site Reliability Engineering (SRE), Web UI, Business Services, Third-party APIs, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Development, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Cloud, Infrastructure, API Design, Amazon API Gateway, Shell Scripting, Statistical Analysis, Amazon, Webhooks, Reverse Engineering, Marketplaces, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS CloudFormation, Data-oriented Design, Consulting, Data Protection, Data Scraping, Data Structures, HTTP API, Cloud Services, API Architecture, Database Administration (DBA), Best Practices, Low-code Development, Ruby, Ruby on Rails (RoR), Vim Text Editor, MacOS, Slack, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue, Postman, OpenAPI, Data Migration, Data, Sequelize, Docker Compose, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, Lambda Functions, AWS Lambda, Storybook, Webpack, Create React App, Lighthouse, jQuery, Object-oriented Programming (OOP), GitHub API, RSpec, minitest, Localization, Web Security, ActiveRecord, Chrome Extensions, JSON Web Tokens (JWT), Encryption, Data Encryption, End-to-end Implementation (E2E), Context API, Web App Development, Database-driven Web App Development, Web Components, Lit, Svelte, Customer Relationship Management (CRM), Django, Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, Single Sign-on (SSO), Test-driven Development (TDD), Heroku, Linux, Amazon DynamoDB, Cypress, CircleCI, Website Performance, Next.js, GraphQL, Ajax, Architecture, Microservices Architecture, Software Architecture, JSON, Database Modeling, Prisma, Redis, Solution Architecture, Google Cloud, Algorithms, MySQL, MongoDB, Docker, Azure, Monorepos, PWA, Documentation, Scrum, Git Flow, React Native, Expo, GitLab, Atlassian, Python, ETL, Single-page Applications (SPA), Responsive Web Apps, Responsive Layout, Minimum Viable Product (MVP), Healthcare IT, AWS Amplify, GitLab CI/CD, Data Pipelines, ETL Tools, Grafana, Prometheus, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Presto, Google BigQuery, Natural Language Processing (NLP), Generative Pre-trained Transformers (GPT), GPT, Google Cloud Natural Language, Data Analytics, Dashboards, Monitoring, Terraform, Booking Apps, Workday, WebSockets, Node.js, TypeScript, Tailwind CSS, Styled-components, ELT, ETL Development, LocalStorage, Responsive Design, Web Forms, Low Code, YAML, Flask, DB
ERP Software Engineer
2011 - 2014
Eastbridge
- Designed and implemented a quick-response management accounting system based on an advanced ERP platform. It reduced the necessary working capital of the company by 50%.
- Created a resource-planning system that helped reduce energy consumption by 40% and increased energy independence by switching the heating system from fossil to renewable energy sources.
- Improved procurement efficiency by launching an online tender system, which reduced resource purchase prices by 20%.
- Built and ran a project team of five software engineers using an Agile software development methodology.
Technologies: JavaScript, SQL, SAP ERP, Linux, Change Management, Software Project Management, CSS, HTML, Vanilla JS, Relational Databases, RDBMS, HTML5, Agile, Git, GitHub, Algorithms, Front-end, Back-end, Full-stack, MySQL, Hospitality, Revenue Management, WordPress, Gatsby, Booking Systems, Finance, Fintech, Business Intelligence (BI), Microsoft Excel, Financial Modeling, Investment Analysis, Business Analysis, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, Financial Planning & Analysis (FP&A), Reporting, AWS IoT, Go, Amazon Web Services (AWS), Responsive Design, Low Code, YAML, Integration, RESTful Services, Windows, DB
Experience
Portfolio
https://alexbaas.com/A progressive web app for a professional portfolio.
Technologies:
• Language: JavaScript
• Styling: TailwindCSS
• Web APIs: Service Worker, Storage, Cache
• Third-party APIs: Google Maps
• Database: Firebase Firestore
• Cloud: Firebase Hosting (PWA), Firebase Functions (Back End)
Technologies:
• Language: JavaScript
• Styling: TailwindCSS
• Web APIs: Service Worker, Storage, Cache
• Third-party APIs: Google Maps
• Database: Firebase Firestore
• Cloud: Firebase Hosting (PWA), Firebase Functions (Back End)
Time Zones App
https://timezones-app.surge.sh/A progressive web app to display the world's time zones.
Project Details:
• Language: TypeScript
• Frameworks: React (PWA), Node.js, Express.js (Back End)
• Styling: TailwindCSS
• Web APIs: Service Worker, Storage, Cache, Offline
• Third-party APIs: Google Maps
• Database: PostgreSQL
• Deployment: Surge (PWA), Heroku (Back End)
Project Details:
• Language: TypeScript
• Frameworks: React (PWA), Node.js, Express.js (Back End)
• Styling: TailwindCSS
• Web APIs: Service Worker, Storage, Cache, Offline
• Third-party APIs: Google Maps
• Database: PostgreSQL
• Deployment: Surge (PWA), Heroku (Back End)
Addio
https://addio.surge.shA responsive layout for a cheap flight search engine.
Project Details:
• Languages: HTML, CSS, JavaScript
• Frameworks: Semantic HTML, TailwindCSS
• Web APIs: Service Worker, Storage, Cache, Offline
• Cloud: Surge, AWS
Project Details:
• Languages: HTML, CSS, JavaScript
• Frameworks: Semantic HTML, TailwindCSS
• Web APIs: Service Worker, Storage, Cache, Offline
• Cloud: Surge, AWS
Lock Your Credit
https://moaning-language.surge.sh/A page prototype for a fintech company which builds embeddable tools via the Web Components standard to deliver financial and credit services to clients.
Project Details:
• Languages: HTML, CSS, JavaScript
• Frameworks: Semantic HTML, Lit
• Web APIs: Web Components
• Cloud: Surge
Project Details:
• Languages: HTML, CSS, JavaScript
• Frameworks: Semantic HTML, Lit
• Web APIs: Web Components
• Cloud: Surge
To-do App
https://baas-svelte.surge.sh/A prototype of a simple to-do app with a responsive design
Project Details:
• Languages: HTML, CSS, JavaScript
• Frameworks: Semantic HTML, Svelte
• Web APIs: Service Worker, Storage, Cache, Offline
• Cloud: Surge
Project Details:
• Languages: HTML, CSS, JavaScript
• Frameworks: Semantic HTML, Svelte
• Web APIs: Service Worker, Storage, Cache, Offline
• Cloud: Surge
Skills
Languages
JavaScript, TypeScript, SQL, Ruby, CSS, HTML, GraphQL, HTML5, Sass, ECMAScript (ES6), Bash, Bash Script, Snowflake, CSS3, YAML, Python, Go
Frameworks
Ruby on Rails (RoR), Tailwind CSS, Vanilla JS, Jest, Express.js, Cypress, Next.js, Redux, Material UI, Swagger, NestJS, minitest, JSON Web Tokens (JWT), React Native, Svelte, Spark, Presto, Selenium, Bootstrap, Flask, Nuxt.js, Slim, Django
Libraries/APIs
React, Node.js, React Redux, REST APIs, Vue, OpenAPI, jQuery, GitHub API, ActiveRecord, Context API, Stripe API, Stripe Connect, Braintree API, Twilio API, Lit, AWS Amplify, Auth0 API, Auth0 Management API v2, Google Analytics API, Stripe, Pandas, D3.js, HTTP API, LocalStorage, Typeform, Typeform.io, Garmin API, Fitbit API, Liquid
Tools
Slack, Jira, Vim Text Editor, GitHub, CircleCI, Figma, Git, Prisma, Postman, Sequelize, Docker Compose, Webpack, Create React App, Lighthouse, RSpec, Expo, GitLab, Atlassian, Auth0, SonarQube, BigQuery, GitLab CI/CD, Grafana, Kibana, Apache Airflow, Amazon Athena, AWS Glue, Superset, Google Analytics, Amazon CloudWatch, Terraform, Microsoft Excel, RabbitMQ, Amazon CloudFront CDN, Microsoft Access, Amazon Cognito, Beanstalk, Docker Hub, Babel, AWS CloudFormation, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, Amazon Simple Email Service (SES), AWS SDK, Microsoft Power Apps, Microsoft Power BI, AWS AppSync, Retool, Google Sheets, Bubble, ChatGPT, AWS Step Functions, Looker
Paradigms
Change Management, Agile Software Development, Test-driven Development (TDD), Testing, Refactoring, Unit Testing, Agile, REST, Microservices, Microservices Architecture, Serverless Architecture, Object-oriented Programming (OOP), Database-driven Web App Development, UI Design, UX Design, Scrum, ETL, Responsive Layout, DevOps, Test Automation, Automated Testing, Business Intelligence (BI), Data Science, Database Design, Web Performance Optimization (WPO), Search Engine Optimization (SEO), Responsive Web Design (RWD), Automation, Continuous Integration (CI), Management, Model View ViewModel (MVVM), ETL Implementation & Design, Web Architecture, Data-oriented Design, API Architecture, Best Practices, Low-code Development, RESTful Development, B2B
Platforms
Linux, Firebase, Heroku, MacOS, Amazon Web Services (AWS), Google Cloud Platform (GCP), Contentful, Docker, Azure, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, AWS Lambda, Kubernetes, Twilio, Mobile, Netlify, DigitalOcean, Amazon, AWS STS, Windows, Microsoft, Mapbox, Microsoft Power Automate, Webflow, WordPress, AWS IoT, Shopify
Storage
PostgreSQL, NoSQL, Amazon DynamoDB, Cloud Firestore, JSON, Database Modeling, RDBMS, Relational Databases, Redis, Amazon S3 (AWS S3), Google Cloud, MySQL, MongoDB, Data Pipelines, Elasticsearch, SQLite, Data Integration, Database Architecture, Redis Cache, Redshift, Databases, Oracle Cloud, Database Administration (DBA), Web Forms, Neo4j, DB
Industry Expertise
Web Design, Project Management, Cybersecurity
Other
Software Project Management, Entrepreneurship, Progressive Web Applications (PWA), Styled-components, SAP ERP, Website Performance, Dependency Management, GitHub Actions, Front-end, User Interface (UI), Web Development, Prototyping, Ajax, Architecture, Integration Testing, QA Testing, Pipelines, CI/CD Pipelines, Cloud, Startups, APIs, Full-stack, Back-end, RESTful Microservices, API Integration, Software Architecture, API Gateways, Data Modeling, TypeORM, Serverless, Solution Architecture, Amazon RDS, Data Engineering, Data Migration, Data, Algorithms, Lambda Functions, Storybook, Monorepos, Localization, Web Security, Chrome Extensions, Encryption, Data Encryption, End-to-end Implementation (E2E), Web App Development, PWA, Payment APIs, BrainTree, Startup Consulting, MVP Design, Full-stack Development, Design, User Experience (UX), Performance, Bots, Documentation, Git Flow, Front-end Development, Web Components, Single-page Applications (SPA), Responsive Web Apps, Minimum Viable Product (MVP), Customer Relationship Management (CRM), Healthcare IT, Healthcare Management Systems, Single Sign-on (SSO), ETL Tools, Prometheus, Data Analysis, Data Visualization, Hospitality, Revenue Management, Apache Superset, Metabase, SEO Tools, Google BigQuery, Natural Language Processing (NLP), Google Cloud Natural Language, Quality Assurance (QA), Automated UI Testing, Test Automation Frameworks, QA Automation, Data Analytics, Dashboards, Monitoring, Gatsby, ESLint, Booking Apps, Booking Systems, Early-stage Startups, Appointment Booking, Finance, Fintech, Data Warehousing, Data Architecture, Financial Modeling, Investment Analysis, Business Analysis, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, Financial Planning & Analysis (FP&A), Reporting, WebSockets, Google SEO, Front-end Architecture, MERN Stack, Scalable Architecture, Technical Leadership, Software Design, DOM, eCommerce, Security, IT Security, Cloud Architecture, Web Scraping, Networking, Leadership, Computer Vision, Chatbots, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Big Data, DevOps Engineer, Apollo, Scalability, Cryptography, Zoho, API Testing, SaaS, Scraping, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), AWS Cloud Architecture, Responsive UI, Authentication, Site Reliability Engineering (SRE), Web UI, Business Services, Third-party APIs, Technical Writing, Back-end Development, Data Build Tool (dbt), Caching, Online Payments, Inventory Management, Infrastructure, API Design, Amazon API Gateway, Shell Scripting, Statistical Analysis, Webhooks, Reverse Engineering, Marketplaces, Data Extraction, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, SDKs, Consulting, Data Protection, Data Scraping, Data Structures, Cloud Services, ELT, ETL Development, Responsive Design, Apollo Server, OpenAI, Low Code, Integration, RESTful Services, RESTful Web Services, System Design, Projects, Engineering, Artificial Intelligence (AI), Large Language Models (LLMs), Language Models, Web Applications, Data-driven Decision-making, GPT, Generative Pre-trained Transformers (GPT), Google, Networks, Offshore Team Management, Discord Bots, Mapping, Charts, Lead Generation, CRM Systems, Process Flows, Excel 365, Microsoft Forms, Data Management, Database Schema Design, Code Review, Estimations, Accessibility, Accessible Rich Internet Applications (ARIA), CSV File Processing, Google Analytics 4, IT Business Analysis, Business Analytics, Embedded Business Intelligence, Workday, NMI Payment Gateway, FinOps, Machine Learning Operations (MLOps), Generative AI, Light LLMs, Open-source LLMs, Multistage LLM Chains, LangChain, Fivetran
Education
2013 - 2014
Master of Business Administration (MBA) in Business Administration
INSEAD - Singapore, Singapore
2010 - 2014
Master's Degree in Computer Science
University of the People - Pasadena, CA, USA
Certifications
MARCH 2024 - PRESENT
AWS Certified Machine Learning – Specialty
Amazon Web Services
FEBRUARY 2024 - PRESENT
AWS Certified DevOps Engineer – Professional
Amazon Web Services
FEBRUARY 2024 - PRESENT
AWS Certified Solutions Architect – Professional
Amazon Web Services
AUGUST 2023 - PRESENT
AWS Certified SysOps Administrator – Associate
Amazon Web Services
AUGUST 2023 - PRESENT
AWS Certified Developer – Associate
Amazon Web Services
JULY 2023 - PRESENT
AWS Certified Solutions Architect – Associate
Amazon Web Services
FEBRUARY 2023 - PRESENT
AWS Certified Cloud Practitioner
Amazon Web Services
DECEMBER 2022 - PRESENT
Cloud Digital Leader
Google Cloud
FEBRUARY 2018 - PRESENT
Professional Scrum Master
Scrum.org
SEPTEMBER 2008 - PRESENT
Certified International Investment Analyst (CIIA)
https://www.aciia.org
Collaboration That Works
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
1
Share your needs
Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2
Choose your talent
Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3
Start your risk-free talent trial
Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.
Top talent is in high demand.
Start hiring