Alex Baas, Developer in Berlin, Germany
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Alex Baas

Verified Expert  in Engineering

Bio

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, LLM, Machine Learning Operations (MLOps)...
Elysium Health
Ruby on Rails, D3.js, PostgreSQL, Redis, Heroku, AWS, Auth0, LLM, LangChain...
Polymer Search, Inc.
JSON, Google Analytics 4 (GA4), APIs, Business Intelligence Development...

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, LLM, Machine Learning Operations (MLOps), Data Engineering, Data Visualization, Low Code Development, 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, D3.js, PostgreSQL, Redis, Heroku, AWS, Auth0, LLM, LangChain, Machine Learning Operations (MLOps), BigQuery, 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 (GA4), APIs, Business Intelligence Development, REST API, Retool, Bubble, Software Architecture, Change Management, Testing, API, Node.js, TypeScript, Vue.js, IT Business Analysis, Business Analysis, Accessible Rich Internet Applications (ARIA), Accessibility Development, Embedded Business Intelligence, ChatGPT, OpenAI, LLM, Liquid, Shopify, FinOps, AWS, 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.js, TypeScript, AWS, AWS Amplify, AWS AppSync, Serverless, Serverless Architecture, Liquid, Shopify, FinOps, AWS, Accessible Rich Internet Applications (ARIA), CSV File Processing, Accessibility Development, Google Analytics 4 (GA4), Webflow, Bubble, IT Business Analysis, Business Analysis, 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, JavaScript, APIs, API Integration, PostgreSQL, jQuery, Payment APIs, Stripe Development, NMI Payment Gateway, Liquid, Shopify, FinOps, AWS, Accessible Rich Internet Applications (ARIA), CSV File Processing, Accessibility Development, Webflow, IT Business Analysis, Business Analysis, 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.js, JavaScript, TypeScript, Python, API, Progressive Web Applications (PWAs), AWS Lambda, Flask, LocalStorage, Architecture, Web Architecture, API, REST, Web Development, RESTful Development, RESTful Services, Software Architecture, System Design, Postman, Software Design, Team Leadership, Projects, Database Design, DB, Database, Engineering, Web Application, Data-driven Decision-making, B2B Design, Nuxt.js, Google Software, Microsoft Development, Cybersecurity, Networks, Offshore Development, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, AWS, AWS Security Token Service (STS), AWS SDK, Typeform, Typeform.io, Microsoft Power Automate, Microsoft Power Apps, Business Intelligence Development, Lead Generation, CRM Systems, UX Development, Excel 365, Microsoft Forms, Data Management, Database Schema Design, AWS AppSync, Code Review, Estimations, Slim, Retool, Google Sheets Development, Shopify, AWS, Accessible Rich Internet Applications (ARIA), CSV File Processing, Accessibility Development, Google Analytics 4 (GA4), IT Business Analysis, Business Analysis, 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, Git, SonarQube, Atlassian, ETL, DevOps, GitLab CI/CD, ETL Tools, Grafana, Prometheus, Database, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Data Integration, Snowflake, Apache Airflow, Kubernetes, Presto, AWS, AWS Glue, Business Intelligence Development, Apache Superset, Metabase, SEO Tools, Google Analytics, Google BigQuery, Google Analytics, BigQuery, Spark, QA Testing, Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, Quality Assurance Engineering, Data Science, Dashboard, Monitoring, Terraform, AWS, ESLint, Business Intelligence Development, Data Warehouse, Data Architecture, Database, Data Science, Database Design, Financial Modeling, Investment Analysis, Business Analysis Consulting, Reporting, Workday, Redis Cache, WebSockets, AWS, Redshift, Front-end Architecture, MERN Stack, DOM, Software Design, Mobile App Design, Technical Leadership, Scalable Architecture, AWS, E-commerce marketing, Security, IT Security, Database, Cloud Architecture, Web Scraping, Networking, UI Development, Pandas, Leadership, Responsive Web Design, D3.js, Computer Vision, Chatbot Development, Web Development, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data Architecture, DevOps, Bootstrap, Netlify, Apollo, Scalability, Crytographer, Zoho Development, API, Virtual Coaching, SaaS, Scraping, Continuous Integration (CI), Microsoft Access Development, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud, UI Development, Authentication, DigitalOcean, UX Development, Site Reliability, Web UI, Business Services, API, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Developers, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Development, Infrastructure, API, Amazon API, Shell Scripting, Data Science, Amazon, Web Development, Reverse Engineering, Marketplace Design, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS, Data-oriented Design, Design Consulting, Data Protection, Data Scraping, Data Structures, API, Cloud Services, API, Database Administration (DBA), Best Practices, Low Code Development, Ruby, Ruby on Rails, Vim Text Editor, MacOS, Slack Development, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue.js, 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), API, RSpec, minitest, Localization, System Security, ActiveRecord, Chrome Extension Development, JSON Web Tokens (JWT), Encryption, System Security, End-to-end Implementation (E2E), Context API, Web Development, Database-driven Web App Development, Payment APIs, Stripe Development, Stripe Connect, BrainTree, API, Bots, Twilio Development, Web Components, Lit, Svelte, CRM, Django, Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, SSO Engineering, Firestore, Agile Development, Technical Design, Change Management, Entrepreneurship, Heroku, Linux, AWS, Cypress, CircleCI, Website Performance, Next.js, GraphQL, Ajax, Architecture, Microservices Architecture, Software Architecture, JSON, Database Modeling, Prisma, Redis, Solution Architecture, Data Engineering, Google Cloud Development, Algorithms, MySQL, MongoDB, Docker, Azure, Monorepos, PWA, Startup Consulting, MVP Design, UI Design, UX Development, Sass, Documentation, Scrum Master Consulting, Git Flow, React Native, Expo, Single-page Applications (SPAs), Responsive Web Development, Responsive Web Design, Minimum Viable Product (MVP), Healthcare IT, AWS Amplify, Hospitality, NLP, Generative Pre-trained Transformers (GPT), Google Cloud Natural Language, WordPress Development, GatsbyJS, Stripe Development, Booking Apps, RabbitMQ, AWS IoT, Go, JavaScript, Progressive Web Applications (PWAs), Node.js, React.js, NoSQL, TypeScript, Tailwind CSS, Styled-components, PostgreSQL, Agile Development, Firebase, Jira, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Development, OpenAI, Low Code Development, YAML, Neo4j, Integration, RESTful Services, Windows Development, Artificial Intelligence, LLM, Language Models, Web Application, Data-driven Decision-making, B2B Design, Nuxt.js, Google Software, Microsoft Development, Cybersecurity, Networks, Offshore Development, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, AWS, AWS Security Token Service (STS), AWS SDK, Web Development, RESTful Development, System Design, Projects, DB, Engineering, Typeform, Typeform.io, Garmin API, Fitbit, Microsoft Power Automate, Microsoft Power Apps, Business Intelligence Development, Lead Generation, CRM Systems, UX Development, Excel 365, Microsoft Forms, Data Management, Database Schema Design, Code Review, Estimations, Slim, Retool, Google Sheets Development, FinOps, AWS, CSV File Processing, Accessibility Development, IT Business Analysis, Business Analysis, 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.js, Agile Development, Git, GitHub, Front-end, Back-end Developers, Full-stack, Data Modeling, Data Engineering, PostgreSQL, Redis, AWS, Amazon S3, API Gateways, HTML, HTML5, CSS, UI Development, Postman, Swagger, OpenAPI, Web Development, Ajax, Prototyping, APIs, REST, REST API, GraphQL, Node.js, Microservices Development, 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, AWS, AWS RDS, Docker, Docker Compose, Azure, CI/CD Pipelines, Pipelines, Firebase, Cloud Engineering, Linux, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, Lambda Functions, AWS Lambda, Cloud Engineering, Startup Development, Google Cloud Development, Full-stack, UX Development, Performance, Documentation, Scrum Master Consulting, Git Flow, Front-end Development, ECMAScript (ES6), Atlassian, ETL, Git, Python, Responsive Web Development, Responsive Web Design, Minimum Viable Product (MVP), AWS Amplify, Grafana, Prometheus, Database, 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, Business Intelligence Development, Apache Superset, Metabase, SEO Tools, Google Analytics, Google BigQuery, Google Analytics, BigQuery, Spark, SonarQube, Generative Pre-trained Transformers (GPT), NLP, Google Cloud Natural Language, QA Testing, Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, Quality Assurance Engineering, Data Science, Dashboard, Monitoring, Terraform, AWS, ESLint, Early-stage Startups, Finance, Fintech Development, Business Intelligence Development, Data Warehouse, Data Architecture, Database, Data Science, Database Design, Financial Modeling, Investment Analysis, Business Analysis Consulting, FP&A, Reporting, Workday, Redis Cache, AWS, Web Performance Optimization (WPO), Google SEO, SEO, Redshift, Front-end Architecture, MERN Stack, DOM, Software Design, Mobile App Design, Technical Leadership, Scalable Architecture, E-commerce marketing, Security, IT Security, Database, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design, D3.js, Computer Vision, Chatbot Development, Web Development, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data Architecture, DevOps, Bootstrap, Netlify, Apollo, Scalability, Crytographer, Zoho Development, API, Virtual Coaching, SaaS, Scraping, Continuous Integration (CI), Microsoft Access Development, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud, UI Development, Authentication, DigitalOcean, Site Reliability, Web UI, Business Services, API, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Developers, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Development, Infrastructure, API, Amazon API, Shell Scripting, Data Science, Amazon, Web Development, Reverse Engineering, Marketplace Design, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS, Data-oriented Design, Design Consulting, Data Protection, Data Scraping, Data Structures, API, Cloud Services, API, Database Administration (DBA), Best Practices, Low Code Development, Ruby, Ruby on Rails, Vim Text Editor, MacOS, Slack Development, 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), API, RSpec, minitest, Localization, System Security, ActiveRecord, Chrome Extension Development, JSON Web Tokens (JWT), Encryption, System Security, End-to-end Implementation (E2E), Context API, Web Development, Database-driven Web App Development, Payment APIs, Stripe Development, Stripe Connect, BrainTree, API, Bots, Twilio Development, Web Components, Lit, Svelte, CRM, Django, Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, SSO Engineering, Firestore, Agile Development, Technical Design, Change Management, Entrepreneurship, Heroku, Cypress, CircleCI, Website Performance, Next.js, Software Architecture, Prisma, Monorepos, PWA, Startup Consulting, MVP Design, UI Design, UX Development, Sass, React Native, Expo, Single-page Applications (SPAs), Healthcare IT, SQLite, Hospitality, WordPress Development, GatsbyJS, Stripe Development, Booking Apps, RabbitMQ, WebSockets, AWS IoT, Go, Progressive Web Applications (PWAs), React.js, Tailwind CSS, Styled-components, Agile Development, Jira, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Development, OpenAI, Low Code Development, YAML, Neo4j, Integration, RESTful Services, Windows Development, Artificial Intelligence, LLM, Language Models, Web Application, Data-driven Decision-making, B2B Design, Nuxt.js, Google Software, Microsoft Development, Cybersecurity, Networks, Offshore Development, Discord Bot, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, AWS, AWS Security Token Service (STS), AWS SDK, Web Development, RESTful Development, System Design, Projects, DB, Engineering, Typeform, Typeform.io, Microsoft Power Automate, Microsoft Power Apps, Business Intelligence Development, Lead Generation, CRM Systems, UX Development, Excel 365, Microsoft Forms, Data Management, Database Schema Design, AWS AppSync, Code Review, Estimations, Slim, Retool, Google Sheets Development, AWS, Accessible Rich Internet Applications (ARIA), CSV File Processing, Accessibility Development, IT Business Analysis, Business Analysis, 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 Development, Jira, Git, GitHub, React.js, Next.js, NestJS, TypeORM, Prisma, PostgreSQL, Redis, Node.js, Express.js, UI Development, Ajax, Tailwind CSS, Material UI, Figma, Styled-components, Redux, React.js, Front-end, Back-end Developers, Full-stack, Web Development, Prototyping, Cypress, Unit Testing, Integration Testing, QA Testing, APIs, REST, REST API, Microservices Development, Microservices Architecture, Serverless, Serverless Architecture, API Integration, Software Architecture, API Gateways, Solution Architecture, Swagger, SQL, NoSQL, JSON, AWS RDS, Heroku, Data Modeling, Data Engineering, RDBMS, Relational Databases, Contentful, AWS, CI/CD Pipelines, Amazon S3, Cloud Engineering, Cloud Engineering, Startup Development, Google Cloud Development, Storybook, Full-stack, Design, UX Development, Performance, Documentation, Scrum Master Consulting, Git Flow, Front-end Development, ECMAScript (ES6), React Native, Expo, Atlassian, Git, Single-page Applications (SPAs), PWA, Progressive Web Applications (PWAs), Responsive Web Development, Minimum Viable Product (MVP), Responsive Web Design, CRM, Auth0, Auth0 API, Auth0 Management API v2, SSO Engineering, DevOps, GitLab CI/CD, ETL Tools, Grafana, Prometheus, Database, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Data Integration, Snowflake, Apache Airflow, Kubernetes, Presto, AWS, AWS Glue, Business Intelligence Development, Apache Superset, Metabase, SEO Tools, Google Analytics, Google BigQuery, Google Analytics, BigQuery, Spark, SonarQube, QA Testing, Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, Quality Assurance Engineering, Data Science, Dashboard, Monitoring, Terraform, AWS, ESLint, Twilio Development, Booking Systems, Early-stage Startups, Appointment Booking, Booking Apps, Data Warehouse, Data Architecture, Database, Data Science, Database Design, Excel Development, A/B Testing, Landing Pages, RabbitMQ, Reporting, Workday, Redis Cache, WebSockets, AWS, Web Performance Optimization (WPO), Google SEO, SEO, Redshift, Front-end Architecture, MERN Stack, DOM, Software Design, Mobile App Design, Technical Leadership, Scalable Architecture, E-commerce marketing, Security, IT Security, Database, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design, D3.js, Computer Vision, Chatbot Development, Web Development, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data Architecture, DevOps, Bootstrap, Netlify, Apollo, Scalability, Crytographer, Zoho Development, API, Virtual Coaching, SaaS, Scraping, Continuous Integration (CI), Microsoft Access Development, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud, UI Development, Authentication, DigitalOcean, Site Reliability, Web UI, Business Services, API, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Developers, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Development, Infrastructure, API, Amazon API, Shell Scripting, Data Science, Amazon, Web Development, Reverse Engineering, Marketplace Design, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS, Data-oriented Design, Design Consulting, Data Protection, Data Scraping, Data Structures, API, Cloud Services, API, Database Administration (DBA), Best Practices, Low Code Development, Ruby, Ruby on Rails, Vim Text Editor, MacOS, Slack Development, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, Vue.js, 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), API, RSpec, minitest, Localization, System Security, ActiveRecord, Chrome Extension Development, JSON Web Tokens (JWT), Encryption, System Security, End-to-end Implementation (E2E), Context API, Web Development, Database-driven Web App Development, Payment APIs, Stripe Development, Stripe Connect, BrainTree, API, Bots, Twilio Development, Web Components, Lit, Svelte, Django, Healthcare Management Systems, Firestore, Agile Development, Technical Design, Change Management, Entrepreneurship, Linux, AWS, CircleCI, Website Performance, GraphQL, Architecture, Database Modeling, Algorithms, MySQL, MongoDB, Docker, Azure, Monorepos, Startup Consulting, MVP Design, UI Design, UX Development, Sass, Python, ETL, Healthcare IT, AWS Amplify, Hospitality, Generative Pre-trained Transformers (GPT), NLP, Google Cloud Natural Language, WordPress Development, GatsbyJS, Stripe Development, AWS IoT, Go, Agile Development, Firebase, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Development, OpenAI, Low Code Development, YAML, Neo4j, Integration, RESTful Services, Windows Development, Artificial Intelligence, LLM, Language Models, Web Application, Data-driven Decision-making, B2B Design, Nuxt.js, Google Software, Microsoft Development, Cybersecurity, Networks, Offshore Development, Discord Bot, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, AWS, AWS Security Token Service (STS), AWS SDK, Web Development, RESTful Development, System Design, Projects, DB, Engineering, Typeform, Typeform.io, Garmin API, Fitbit, Lead Generation, CRM Systems, UX Development, Excel 365, Microsoft Forms, Microsoft Power Apps, Microsoft Power Automate, Data Management, Database Schema Design, AWS AppSync, Estimations, Slim, Retool, Google Sheets Development, AWS, Accessible Rich Internet Applications (ARIA), IT Business Analysis, Business Analysis

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.js, Redux, React.js, Website Performance, Lighthouse, Unit Testing, Integration Testing, QA Testing, CI/CD Pipelines, Pipelines, Cypress, Jest, Agile Development, Git, GitHub, CircleCI, Front-end, Back-end Developers, Full-stack, APIs, REST, REST API, Microservices Development, Microservices Architecture, Architecture, UX Development, UI Development, Solution Architecture, Amazon S3, AWS RDS, RDBMS, Relational Databases, Cloud Engineering, Google Cloud Development, 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, AWS, MongoDB, Data Modeling, Data Engineering, Prisma, JSON, API, Docker, AWS, Azure, Startup Development, Full-stack, Performance, Documentation, Scrum Master Consulting, Git Flow, Front-end Development, ECMAScript (ES6), Git, Atlassian, Python, Single-page Applications (SPAs), Progressive Web Applications (PWAs), PWA, DevOps, GitLab CI/CD, Bash, Bash Script, Data Visualization, Data Analysis, Data Integration, Snowflake, Apache Airflow, Kubernetes, AWS, AWS Glue, Business Intelligence Development, Apache Superset, Metabase, SEO Tools, Google Analytics, Google BigQuery, Google Analytics, BigQuery, Spark, SonarQube, QA Testing, Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, Quality Assurance Engineering, Data Science, Dashboard, Monitoring, AWS, ESLint, Stripe Development, Twilio Development, Booking Systems, Early-stage Startups, Appointment Booking, Booking Apps, Data Architecture, Database, Data Science, Database Design, Excel Development, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, FP&A, Reporting, Redis Cache, WebSockets, AWS, Web Performance Optimization (WPO), Google SEO, SEO, Redshift, Front-end Architecture, MERN Stack, DOM, Software Design, Mobile App Design, Technical Leadership, Scalable Architecture, E-commerce marketing, Security, IT Security, Database, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design, D3.js, Computer Vision, Chatbot Development, Web Development, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data Architecture, DevOps, Bootstrap, Netlify, Apollo, Scalability, Crytographer, Zoho Development, API, Virtual Coaching, SaaS, Scraping, Continuous Integration (CI), Microsoft Access Development, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud, UI Development, Authentication, DigitalOcean, Site Reliability, Web UI, Business Services, API, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Developers, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Development, Infrastructure, API, Amazon API, Shell Scripting, Data Science, Amazon, Web Development, Reverse Engineering, Marketplace Design, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS, Data-oriented Design, Design Consulting, Data Protection, Data Scraping, Data Structures, API, Cloud Services, API, Database Administration (DBA), Best Practices, Low Code Development, Ruby, Ruby on Rails, Vim Text Editor, MacOS, Slack Development, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue.js, Postman, OpenAPI, Data Migration, Data, Sequelize, Docker Compose, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, Lambda Functions, AWS Lambda, Storybook, RSpec, minitest, Localization, System Security, ActiveRecord, Chrome Extension Development, JSON Web Tokens (JWT), Encryption, System Security, End-to-end Implementation (E2E), Context API, Web Development, Database-driven Web App Development, Payment APIs, Stripe Development, Stripe Connect, BrainTree, API, Bots, Twilio Development, Web Components, Lit, Svelte, CRM, Django, Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, SSO Engineering, Firestore, Agile Development, Technical Design, Change Management, Entrepreneurship, Heroku, Linux, Database Modeling, Redis, Algorithms, Startup Consulting, MVP Design, UI Design, UX Development, Sass, React Native, Expo, ETL, Responsive Web Development, Responsive Web Design, Minimum Viable Product (MVP), Healthcare IT, AWS Amplify, Database, ETL Tools, Grafana, Prometheus, Elasticsearch, Kibana, SQLite, Hospitality, Presto, NLP, Generative Pre-trained Transformers (GPT), Google Cloud Natural Language, Terraform, WordPress Development, GatsbyJS, RabbitMQ, Workday, AWS IoT, Go, Agile Development, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Development, Low Code Development, YAML, Integration, RESTful Services, Windows Development, Artificial Intelligence, LLM, Language Models, Web Application, Data-driven Decision-making, B2B Design, Nuxt.js, Google Software, Microsoft Development, Cybersecurity, Networks, Offshore Development, Discord Bot, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, AWS, AWS Security Token Service (STS), AWS SDK, Web Development, RESTful Development, System Design, Projects, DB, Engineering, Typeform, Microsoft Power Automate, Microsoft Power Apps, Business Intelligence Development, Lead Generation, CRM Systems, UX Development, Excel 365, Microsoft Forms, Data Management, Database Schema Design, Estimations, Slim, Retool, Google Sheets Development, 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.js, Node.js, SQL, PostgreSQL, AWS, Tailwind CSS, Agile Development, Styled-components, Agile Development, Ruby, Ruby on Rails, 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 Development, Git, GitHub, Amazon S3, RDBMS, Relational Databases, RSpec, minitest, Figma, React.js, UI Development, Localization, Unit Testing, Integration Testing, QA Testing, CI/CD Pipelines, Pipelines, Web Development, System Security, APIs, REST API, ActiveRecord, REST, Chrome Extension Development, Monorepos, Redis, JSON Web Tokens (JWT), Encryption, System Security, End-to-end Implementation (E2E), Front-end, Back-end Developers, Full-stack, Full-stack, UX Development, Performance, Design, Documentation, Scrum Master Consulting, Git Flow, Front-end Development, ECMAScript (ES6), React Native, Expo, Healthcare IT, Responsive Web Design, Responsive Web Development, Healthcare Management Systems, Data Integration, Snowflake, Apache Airflow, Kubernetes, Revenue Management, Presto, AWS, AWS Glue, Business Intelligence Development, Apache Superset, Metabase, SEO Tools, Google Analytics, Google Analytics, BigQuery, Spark, SonarQube, NLP, Generative Pre-trained Transformers (GPT), Google Cloud Natural Language, QA Testing, Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, Quality Assurance Engineering, AWS, ESLint, Stripe Development, Twilio Development, Booking Systems, Early-stage Startups, Appointment Booking, Fintech Development, Booking Apps, Business Intelligence Development, Data Warehouse, Data Architecture, Database, Data Science, Database Design, Excel Development, Financial Modeling, Business Analysis Consulting, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, RabbitMQ, FP&A, Reporting, Redis Cache, AWS, Web Performance Optimization (WPO), Google SEO, SEO, Redshift, Front-end Architecture, MERN Stack, Go, DOM, Software Design, Technical Leadership, Scalable Architecture, E-commerce marketing, Security, IT Security, Database, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design, D3.js, Computer Vision, Chatbot Development, Web Development, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data Architecture, DevOps, Bootstrap, Netlify, Apollo, Scalability, Crytographer, Zoho Development, API, Virtual Coaching, SaaS, Scraping, Continuous Integration (CI), Microsoft Access Development, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud, UI Development, Authentication, DigitalOcean, Site Reliability, Web UI, Business Services, API, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Developers, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Development, Infrastructure, API, Amazon API, Shell Scripting, Data Science, Amazon, Web Development, Reverse Engineering, Marketplace Design, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS, Data-oriented Design, Design Consulting, Data Protection, Data Scraping, Data Structures, API, Cloud Services, API, Database Administration (DBA), Best Practices, Low Code Development, Vim Text Editor, MacOS, Slack Development, SAP ERP, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue.js, 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), API, Context API, Web Development, Database-driven Web App Development, Payment APIs, Stripe Development, Stripe Connect, BrainTree, API, Bots, Twilio Development, Web Components, Lit, Svelte, CRM, Django, Auth0, Auth0 API, Auth0 Management API v2, SSO Engineering, Firestore, Technical Design, Change Management, Entrepreneurship, Heroku, Linux, AWS, Ajax, Architecture, Microservices Architecture, Software Architecture, JSON, Database Modeling, Prisma, Solution Architecture, Data Engineering, Google Cloud Development, Algorithms, MySQL, MongoDB, Docker, Azure, PWA, Startup Consulting, MVP Design, UI Design, UX Development, Sass, Git, Atlassian, Python, ETL, Single-page Applications (SPAs), Minimum Viable Product (MVP), AWS Amplify, GitLab CI/CD, Database, ETL Tools, Grafana, Prometheus, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Hospitality, Google BigQuery, Data Science, Dashboard, Monitoring, Terraform, WordPress Development, GatsbyJS, Workday, WebSockets, AWS IoT, Progressive Web Applications (PWAs), NoSQL, Firebase, ELT, ETL Development, LocalStorage, Responsive Design, Apollo Server, Web Development, Low Code Development, YAML, Neo4j, Integration, RESTful Services, Windows Development, Artificial Intelligence, LLM, Language Models, Web Application, Data-driven Decision-making, B2B Design, Google Software, Microsoft Development, Cybersecurity, Networks, Offshore Development, Mapbox, Mapping, Charts, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, AWS, AWS Security Token Service (STS), AWS SDK, Flask, Web Development, RESTful Development, System Design, Projects, DB, Engineering, Garmin API, Fitbit, Lead Generation, CRM Systems, UX Development, Excel 365, Microsoft Forms, Microsoft Power Apps, Microsoft Power Automate, Data Management, Database Schema Design, AWS AppSync, Code Review, Estimations, Slim, Retool, Google Sheets Development, 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.js, Node.js, AWS, AWS, Progressive Web Applications (PWAs), NoSQL, TypeScript, Agile Development, CSS, HTML, Vanilla JS, Agile Development, Express.js, Jest, HTML5, Material UI, Agile Development, Git, GitHub, API Gateways, REST, REST API, Microservices Development, PostgreSQL, Unit Testing, Integration Testing, QA Testing, API Integration, Redux, Context API, UX Development, UI Development, Web Development, Web Development, Database-driven Web App Development, PWA, Swagger, Firebase, Amazon S3, AWS RDS, RDBMS, Startup Development, Front-end, Back-end Developers, Full-stack, Startup Consulting, MVP Design, Full-stack, Front-end Development, ECMAScript (ES6), Minimum Viable Product (MVP), Python, Django, Healthcare IT, AWS Amplify, Hospitality, Revenue Management, SEO Tools, Google Analytics, Google Analytics, Google Cloud Natural Language, Generative Pre-trained Transformers (GPT), NLP, QA Testing, Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, Quality Assurance Engineering, WordPress Development, GatsbyJS, ESLint, Stripe Development, Twilio Development, Booking Systems, Early-stage Startups, Appointment Booking, Finance, Fintech Development, Booking Apps, Business Intelligence Development, Excel Development, Financial Modeling, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, FP&A, Reporting, AWS, AWS IoT, Web Performance Optimization (WPO), Google SEO, SEO, Go, DOM, Software Design, Mobile App Design, Technical Leadership, Scalable Architecture, E-commerce marketing, Security, IT Security, Database, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design, D3.js, Computer Vision, Chatbot Development, Web Development, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data Architecture, DevOps, Bootstrap, Netlify, Apollo, Scalability, Crytographer, Zoho Development, API, Virtual Coaching, SaaS, Scraping, Continuous Integration (CI), Microsoft Access Development, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud, UI Development, Authentication, DigitalOcean, Site Reliability, Web UI, Business Services, API, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Developers, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Development, Infrastructure, API, Amazon API, Shell Scripting, Data Science, Amazon, Web Development, Reverse Engineering, Marketplace Design, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS, Data-oriented Design, Design Consulting, Data Protection, Data Scraping, Data Structures, API, Cloud Services, API, Database Administration (DBA), Best Practices, Low Code Development, Ruby, Ruby on Rails, Vim Text Editor, MacOS, Slack Development, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue.js, 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), API, RSpec, minitest, Localization, System Security, ActiveRecord, Chrome Extension Development, JSON Web Tokens (JWT), Encryption, System Security, End-to-end Implementation (E2E), Payment APIs, Stripe Development, Stripe Connect, BrainTree, API, Bots, Twilio Development, Web Components, Lit, Svelte, CRM, Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, SSO Engineering, Firestore, Technical Design, 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 Development, Algorithms, MySQL, MongoDB, Docker, Azure, Monorepos, UI Design, UX Development, Sass, Documentation, Scrum Master Consulting, Git Flow, React Native, Expo, Git, Atlassian, ETL, Single-page Applications (SPAs), Responsive Web Development, Responsive Web Design, GitLab CI/CD, Database, ETL Tools, Grafana, Prometheus, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Presto, Google BigQuery, Data Science, Dashboard, Monitoring, Terraform, RabbitMQ, Workday, WebSockets, SQL, Tailwind CSS, Styled-components, ELT, ETL Development, LocalStorage, Responsive Design, Web Development, Low Code Development, YAML, Integration, RESTful Services, Windows Development, Flask, RESTful Development, Web Development, System Design, DB, Engineering, Garmin API, Fitbit, Microsoft Power Automate, Microsoft Power Apps, Business Intelligence Development, UX Development, 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 (PWAs), React.js, SQL, PostgreSQL, AWS, Firestore, NoSQL, Agile Development, Change Management, Technical Design, Entrepreneurship, CSS, Firebase, HTML, Vanilla JS, Express.js, Jest, Payment APIs, Stripe Development, Stripe Connect, BrainTree, API, HTML5, Redux, React.js, Amazon S3, AWS RDS, Agile Development, Git, GitHub, UI Development, REST, REST API, Microservices Development, Unit Testing, Integration Testing, QA Testing, Data Modeling, Data Engineering, Front-end, Back-end Developers, Full-stack, Startup Consulting, MVP Design, Full-stack, Design, UX Development, Performance, UI Design, UX Development, Sass, Bots, Twilio Development, Data Integration, Snowflake, Hospitality, Revenue Management, AWS, SEO Tools, Google Analytics, Google Analytics, QA Testing, Test Automation, Automated Testing, Automated UI Testing, Test Automation Frameworks, Quality Assurance Engineering, WordPress Development, GatsbyJS, ESLint, Stripe Development, Twilio Development, Booking Systems, Early-stage Startups, Appointment Booking, Finance, Fintech Development, Business Intelligence Development, Data Warehouse, Excel Development, Financial Modeling, Investment Analysis, Business Analysis Consulting, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, RabbitMQ, FP&A, Reporting, AWS IoT, Web Performance Optimization (WPO), Google SEO, SEO, Front-end Architecture, Go, DOM, Software Design, Mobile App Design, Technical Leadership, Scalable Architecture, E-commerce marketing, Security, IT Security, Database, Cloud Architecture, Web Scraping, Networking, Pandas, Leadership, Responsive Web Design, D3.js, Computer Vision, Chatbot Development, Web Development, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Automation, Selenium, Big Data Architecture, DevOps, Bootstrap, Netlify, Apollo, Scalability, Crytographer, Zoho Development, API, Virtual Coaching, SaaS, Scraping, Continuous Integration (CI), Microsoft Access Development, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), Amazon Cognito, Management, AWS Cloud, UI Development, Authentication, DigitalOcean, Site Reliability, Web UI, Business Services, API, CSS3, Model View ViewModel (MVVM), Technical Writing, Back-end Developers, Data Build Tool (dbt), ETL Implementation & Design, Caching, Online Payments, Inventory Management, Oracle Development, Infrastructure, API, Amazon API, Shell Scripting, Data Science, Amazon, Web Development, Reverse Engineering, Marketplace Design, Data Extraction, Beanstalk, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, Docker Hub, Web Architecture, SDKs, Babel, AWS, Data-oriented Design, Design Consulting, Data Protection, Data Scraping, Data Structures, API, Cloud Services, API, Database Administration (DBA), Best Practices, Low Code Development, Ruby, Ruby on Rails, Vim Text Editor, MacOS, Slack Development, SAP ERP, Testing, Dependency Management, GitHub Actions, Refactoring, RESTful Microservices, NestJS, TypeORM, Serverless, Serverless Architecture, Contentful, Vue.js, 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), API, RSpec, minitest, Localization, System Security, ActiveRecord, Chrome Extension Development, JSON Web Tokens (JWT), Encryption, System Security, End-to-end Implementation (E2E), Context API, Web Development, Database-driven Web App Development, Web Components, Lit, Svelte, CRM, Django, Healthcare Management Systems, Auth0, Auth0 API, Auth0 Management API v2, SSO Engineering, Agile Development, Heroku, Linux, AWS, Cypress, CircleCI, Website Performance, Next.js, GraphQL, Ajax, Architecture, Microservices Architecture, Software Architecture, JSON, Database Modeling, Prisma, Redis, Solution Architecture, Google Cloud Development, Algorithms, MySQL, MongoDB, Docker, Azure, Monorepos, PWA, Documentation, Scrum Master Consulting, Git Flow, React Native, Expo, Git, Atlassian, Python, ETL, Single-page Applications (SPAs), Responsive Web Development, Responsive Web Design, Minimum Viable Product (MVP), Healthcare IT, AWS Amplify, GitLab CI/CD, Database, ETL Tools, Grafana, Prometheus, Elasticsearch, Kibana, SQLite, Bash, Bash Script, Data Analysis, Data Visualization, Presto, Google BigQuery, Generative Pre-trained Transformers (GPT), NLP, Google Cloud Natural Language, Data Science, Dashboard, Monitoring, Terraform, Booking Apps, Workday, WebSockets, Node.js, TypeScript, Tailwind CSS, Styled-components, ELT, ETL Development, LocalStorage, Responsive Design, Web Development, Low Code Development, 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, Technical Design, CSS, HTML, Vanilla JS, Relational Databases, RDBMS, HTML5, Agile Development, Git, GitHub, Algorithms, Front-end, Back-end Developers, Full-stack, MySQL, Hospitality, Revenue Management, WordPress Development, GatsbyJS, Booking Systems, Finance, Fintech Development, Business Intelligence Development, Excel Development, Financial Modeling, Investment Analysis, Business Analysis Consulting, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, FP&A, Reporting, AWS IoT, Go, AWS, Responsive Design, Low Code Development, YAML, Integration, RESTful Services, Windows Development, DB

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)

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)

Addio

https://addio.surge.sh
A 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

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

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
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

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

Libraries/APIs

React.js, Node.js, React.js, REST API, Vue.js, OpenAPI, jQuery, API, ActiveRecord, Context API, Stripe Development, Stripe Connect, API, Twilio Development, Lit, AWS Amplify, Auth0 API, Auth0 Management API v2, Google Analytics, Stripe Development, Pandas, D3.js, API, LocalStorage, Typeform, Typeform.io, Garmin API, Fitbit, Liquid

Tools

Slack Development, Jira, Vim Text Editor, GitHub, CircleCI, Figma, Git, Prisma, Postman, Sequelize, Docker Compose, Webpack, Create React App, Lighthouse, RSpec, Expo, Git, Atlassian, Auth0, SonarQube, BigQuery, GitLab CI/CD, Grafana, Kibana, Apache Airflow, AWS, AWS Glue, Business Intelligence Development, Google Analytics, AWS, Terraform, Excel Development, RabbitMQ, AWS, Microsoft Access Development, Amazon Cognito, Beanstalk, Docker Hub, Babel, AWS, AWS IAM, Amazon Elastic MapReduce (EMR), AWS CLI, AWS ELB, AWS, AWS SDK, Microsoft Power Apps, Business Intelligence Development, AWS AppSync, Retool, Google Sheets Development, Bubble, ChatGPT, AWS, Looker

Languages

JavaScript, TypeScript, SQL, Ruby, CSS, HTML, GraphQL, HTML5, Sass, ECMAScript (ES6), Bash, Bash Script, Snowflake, CSS3, YAML, Python, Go

Frameworks

Ruby on Rails, 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

Paradigms

Change Management, Agile Development, Agile Development, Testing, Refactoring, Unit Testing, Agile Development, REST, Microservices Development, Microservices Architecture, Serverless Architecture, Object-oriented Programming (OOP), Database-driven Web App Development, UI Design, UX Development, Scrum Master Consulting, ETL, Responsive Web Design, DevOps, Test Automation, Automated Testing, Business Intelligence Development, Database Design, Web Performance Optimization (WPO), SEO, Responsive Web Design, Automation, Continuous Integration (CI), Management, Model View ViewModel (MVVM), ETL Implementation & Design, Web Architecture, Data-oriented Design, API, Best Practices, Low Code Development, RESTful Development, B2B Design

Platforms

Linux, Firebase, Heroku, MacOS, AWS, Cloud Engineering, Contentful, Docker, Azure, Ubuntu, AWS Elastic Beanstalk, Amazon EC2, AWS Lambda, Kubernetes, Twilio Development, Mobile App Design, Netlify, DigitalOcean, Amazon, AWS Security Token Service (STS), Windows Development, Microsoft Development, Mapbox, Microsoft Power Automate, Webflow, WordPress Development, AWS IoT, Shopify

Storage

PostgreSQL, NoSQL, AWS, Firestore, JSON, Database Modeling, RDBMS, Relational Databases, Redis, Amazon S3, Google Cloud Development, MySQL, MongoDB, Database, Elasticsearch, SQLite, Data Integration, Database, Redis Cache, Redshift, Database, Oracle Development, Database Administration (DBA), Web Development, Neo4j, DB

Industry Expertise

Web Development, Virtual Coaching, Cybersecurity

Other

Technical Design, Entrepreneurship, Progressive Web Applications (PWAs), Styled-components, SAP ERP, Website Performance, Dependency Management, GitHub Actions, Front-end, UI Development, Web Development, Prototyping, Ajax, Architecture, Integration Testing, QA Testing, Pipelines, CI/CD Pipelines, Cloud Engineering, Startup Development, APIs, Full-stack, Back-end Developers, RESTful Microservices, API Integration, Software Architecture, API Gateways, Data Modeling, TypeORM, Serverless, Solution Architecture, AWS RDS, Data Engineering, Data Migration, Data, Algorithms, Lambda Functions, Storybook, Monorepos, Localization, System Security, Chrome Extension Development, Encryption, System Security, End-to-end Implementation (E2E), Web Development, PWA, Payment APIs, BrainTree, Startup Consulting, MVP Design, Full-stack, Design, UX Development, Performance, Bots, Documentation, Git Flow, Front-end Development, Web Components, Single-page Applications (SPAs), Responsive Web Development, Minimum Viable Product (MVP), CRM, Healthcare IT, Healthcare Management Systems, SSO Engineering, ETL Tools, Prometheus, Data Analysis, Data Visualization, Hospitality, Revenue Management, Apache Superset, Metabase, SEO Tools, Google BigQuery, NLP, Google Cloud Natural Language, QA Testing, Automated UI Testing, Test Automation Frameworks, Quality Assurance Engineering, Data Science, Dashboard, Monitoring, GatsbyJS, ESLint, Booking Apps, Booking Systems, Early-stage Startups, Appointment Booking, Finance, Fintech Development, Data Warehouse, Data Architecture, Data Science, Financial Modeling, Investment Analysis, Business Analysis Consulting, A/B Testing, Landing Pages, Learning Management Systems (LMS), Feasibility, Feasibility Studies, FP&A, Reporting, WebSockets, Google SEO, Front-end Architecture, MERN Stack, Scalable Architecture, Technical Leadership, Software Design, DOM, E-commerce marketing, Security, IT Security, Cloud Architecture, Web Scraping, Networking, Leadership, Computer Vision, Chatbot Development, Team Leadership, AWS DevOps, Cloud Infrastructure, HTTP, Big Data Architecture, DevOps, Apollo, Scalability, Crytographer, Zoho Development, API, SaaS, Scraping, Big Data Architecture, CRM APIs, Infrastructure as Code (IaC), AWS Cloud, UI Development, Authentication, Site Reliability, Web UI, Business Services, API, Technical Writing, Back-end Developers, Data Build Tool (dbt), Caching, Online Payments, Inventory Management, Infrastructure, API, Amazon API, Shell Scripting, Data Science, Web Development, Reverse Engineering, Marketplace Design, Data Extraction, Performance Tuning, Headless Software, Infrastructure Monitoring, System Architecture, SDKs, Design Consulting, Data Protection, Data Scraping, Data Structures, Cloud Services, ELT, ETL Development, Responsive Design, Apollo Server, OpenAI, Low Code Development, Integration, RESTful Services, Web Development, System Design, Projects, Engineering, Artificial Intelligence, LLM, Language Models, Web Application, Data-driven Decision-making, Generative Pre-trained Transformers (GPT), Google Software, Networks, Offshore Development, Discord Bot, Mapping, Charts, Lead Generation, CRM Systems, UX Development, Excel 365, Microsoft Forms, Data Management, Database Schema Design, Code Review, Estimations, Accessibility Development, Accessible Rich Internet Applications (ARIA), CSV File Processing, Google Analytics 4 (GA4), IT Business Analysis, Business Analysis, Embedded Business Intelligence, Workday, NMI Payment Gateway, FinOps, Machine Learning Operations (MLOps), Generative Artificial Intelligence (GenAI), Light LLMs, Open-source LLMs, Multistage LLM Chains, LangChain, Fivetran

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

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Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

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