Christopher is available for hire

Christopher Glantschnig

Verified Expert in Engineering

Software Developer

Bangkok, Thailand

Toptal member since May 26, 2021

Expertise

Web Applications Web App Development Algorithms Full-stack Back-end Front-end Responsive Web Apps Full-stack Development Data Visualization Integration Authentication User Authentication Web Hosting Back-end Development API Integration

Bio

With over ten years of professional work experience as a software developer, Chris gained many skills to create inspiring, maintainable, and robust products. Customer satisfaction is at the very top of his list, starting at the first meeting until the delivery of the project. Chris's mentality is all about getting things done. This is highly influenced by his time working in startup communities. Additionally, he is extremely adaptable and can get into new fields fast.

Portfolio

Container Exchange Services - Main

Java, SQL, Kubernetes, Amazon Web Services (AWS), WebFlux, Kotlin, Architecture...

Container Exchange Services - Main

Java, SQL, PL/SQL, Oracle, Kubernetes, Spring Boot, Helm, Technical Leadership...

CraftWorksAsia Corp

Java, Spring Boot, AngularJS, Quality Assurance (QA), Elasticsearch, Kubernetes...

Experience

Databases - 12 years Java - 12 years JavaScript - 10 years Angular - 7 years Node.js - 7 years Elasticsearch - 5 years Spring Boot - 5 years Kubernetes - 5 years

Availability

Part-time

Preferred Environment

IntelliJ IDEA, MacOS, DataGrip, Terminal, HTML, ChatGPT, tRPC

The most amazing...

...product I've worked on is an advertising platform with over 30 million monthly interactions and all with strict performance criteria.

Work Experience

Senior Java Developer

2022 - 2023

Container Exchange Services - Main

Created a new and fully tested microservice from scratch using Kotlin and WebFlux.
Worked on a vast legacy UI created with an outdated Angular version.
Collaborated on scoping new issues from a significant stakeholder and heavy business processes.

Technologies: Java, SQL, Kubernetes, Amazon Web Services (AWS), WebFlux, Kotlin, Architecture, RDBMS, API Integration, Integration, Back-end, UI Development, Front-end Development, Vercel, Terraform, System Architecture, System Design, Custom Solutions, Functional Programming, Spring Microservice, RESTful Services, Web Applications, Solution Architecture, Event-driven Programming, Event-driven Architecture, Supabase, Endpoint Management, AWS Lambda, AWS SDK, AWS Step Functions, Amazon Aurora, Amazon DynamoDB, Amazon Simple Queue Service (SQS), Code Review, React Server Components, SvelteKit, Strapi, Database Design, API Databases, OpenAI

Java Tech Lead

2022 - 2022

Container Exchange Services - Main

Managed all incoming technical requirements for a dev team.
Involved in automated database deployments using Liquibase.
Created technical interviews for new applicants and optimized the process.

Technologies: Java, SQL, PL/SQL, Oracle, Kubernetes, Spring Boot, Helm, Technical Leadership, Gatling, Liquibase, Architecture, RDBMS, API Integration, Integration, Back-end, Microsoft Teams, UI Development, Front-end Development, Team Leadership, Terraform, System Architecture, System Design, Custom Solutions, Functional Programming, OAuth, Spring Microservice, RESTful Services, Web Applications, Solution Architecture, Event-driven Programming, Event-driven Architecture, Discovery, Discovery Workshops, Code Review, Forums & Social Networking Portals, SDKs, Database Design

CTO / Full-stack Developer

2019 - 2022

CraftWorksAsia Corp

Gained experience with integration AI solutions with regular software.
Designed software architecture with real-time or big data in mind.
Managed all organizational tasks of a corporation, including board meetings, financial planning, dealing with various local organizations, and human resources.
Created excellent software following customers' requirements.
Led a small development team with Agile processes.

Technologies: Java, Spring Boot, AngularJS, Quality Assurance (QA), Elasticsearch, Kubernetes, Azure, RabbitMQ, Software Architecture, HTML, Full-stack, Redis, Data Analytics, React Redux, Firebase Analytics, Go, Architecture, RDBMS, NoSQL, API Integration, OpenAI GPT-4 API, Netlify, Material UI, Slack, GitHub, Integration, Authorization, User Authentication, Authentication, Back-end, Serverless, Material Design, Webhooks, UI Development, Sanity Studio, Front-end Development, Figma, Front-end Design, Webpack, Video Streaming, Team Leadership, Technical Consulting, System Architecture, System Design, Custom Solutions, Functional Programming, Reports, Progressive Web Applications (PWAs), Spring Microservice, RESTful Services, Web Applications, Solution Architecture, CTO, Drizzle, Mapbox, Event-driven Programming, Event-driven Architecture, NestJS, Online Banking, Digital Payments, Mobile Banking, Leadership, Twilio, Selenium, Data Management, Data Visualization, Data Architecture, Code Review, NPM, Database Design, Docker Compose, NGINX

Senior Software Developer | Project Manager

2016 - 2019

craftworks GmbH

Worked on diverse front-end projects following mockups and suggesting my design elements.
Managed and helped to build small development teams to fulfill project goals and deadlines.
Created APIs and intensive background jobs, which ideally utilize the server environment resources on time.
Solved many challenging tasks, including big data, strict time limits, and other constraints.
Planned architectures of various software projects.

Technologies: Java, Spring Boot, PostgreSQL, Angular, Elasticsearch, Azure, Docker, Kubernetes, Single Sign-on (SSO), Next.js, HTML, SCSS, Full-stack, Asynchronous Programming, HTML5, ECMAScript (ES6), PDF, Architecture, RDBMS, API Integration, Stripe, Stripe Checkout, DigitalOcean, Facebook API, Integration, Authorization, User Authentication, Authentication, Facebook, Back-end, Material Design, Atomic Design, Webhooks, UI Development, Front-end Development, Front-end Design, PayPal API, Stripe API, Webpack, Zustand, Web Scraping, FastAPI, Scraping, Data Scraping, System Architecture, System Design, Custom Solutions, Functional Programming, MEAN Stack, Progressive Web Applications (PWAs), Styled-components, Spring Microservice, RESTful Services, Web Applications, Solution Architecture, Payment Processing, Payment APIs, Artificial Intelligence (AI), Bitbucket, Event-driven Programming, Event-driven Architecture, Apache Kafka, Online Banking, Digital Payments, Mobile Banking, Data Management, Startups, Playwright, Google Maps SDK, NextAuth.js, Project Planning, Data Architecture, Code Review, MUI CSS, NPM, WebSockets, Open Source, SAML, Chakra UI, Database Design, Docker Compose, NGINX

Full-stack Developer

2014 - 2016

All About Apps

Made several hybrid apps and mobile-optimized UIs to get into the feeling of mobile applications.
Created back-end REST APIs for several smaller mobile apps.
Self-managed smaller projects from kickoff to delivery.

Technologies: JavaScript, Node.js, PostgreSQL, React, HTML, Bootstrap, Full-stack, HTML5, ECMAScript (ES6), API Integration, Express.js, iOS, Android, Swift, Integration, Authorization, User Authentication, Authentication, Back-end, UI Development, Front-end Development, Shopify, Web Scraping, Healthcare, Progressive Web Applications (PWAs), Mobile-first Design, PHP, Web Applications, eCommerce, Bitbucket, Apache Kafka, Pixel Perfect, Mobile First, Responsive Web Design (RWD), Google Maps SDK, CSS Animations, Mobile, Database Design

Front-end Developer

2012 - 2014

Meinkauf GmbH

Gained experience with professional software engineering best practices for the full software development lifecycle, including coding standards, code reviews, source control management, build processes, testing, and operations.
Tracked and fixed bugs using Jira as a reporting tool.
Collaborated with the team to brainstorm and create new features.

Technologies: JavaScript, CSS, AngularJS, HTML, Bootstrap, HTML5, ECMAScript (ES6), Authorization, Authentication, UI Development, Web Scraping, jQuery, Laravel, Web Applications, Startups, Symfony

Experience

Ad Platform

An advertisement platform to search and add leaflets and promotions on a daily basis and as a dev lead, I had a major impact on the success of that project as I developed all parts of the application, designed the architecture, developed a back-office to manage the data, created a sophisticated SEO concept, and made an API with strict speed requirements. I installed a customized tracking system and built it on top of a billing system, and last but not least, set up everything into a cloud-based environment.

The biggest challenge in this project was the amount of data we had to evaluate every day. Still, we managed it using the right platforms to store the data and use a microservice architecture to scale up or down easily.

Power Plant Platform

A sophisticated system to track the flow between power plants in real time where I was responsible for planning, developing, and maintaining the platform. A very important factor in that project was quality insurance, which I took very seriously. The software has had no major downtimes so far.

Cash Quiz

Cash Quiz is an app where you can win money by answering questions at scheduled times and I was in charge of creating and developing the back-end architecture. We used Node.js in that project—the biggest challenge was to make sure that the users have no possibility to cheat. To that end, we made sure to always have an immutable state.

Financial Trading Platform

A distributed system used to monitor and keep different kinds of financial transactions. These transactions can be spot fx trades, crypto fx trades, future trades, and other smaller trade types. This system is used for larger systems and gives advanced statistics in real-time.

Education

2015 - 2019

Bachelor's Degree in Software and Information Engineering

Technical University Vienna - Vienna, Austria

2007 - 2012

Engineer's Degree in IT and Business Organization

HTL Pinkafeld - Pinkafeld, Austria

Certifications

FEBRUARY 2012 - FEBRUARY 2015

Cisco Certified Network Associate

Cisco

Skills

Libraries/APIs

Node.js, React, Vue, Web3.js, REST APIs, Stripe, Facebook API, API Development, AWS Amplify, jQuery, Drizzle, React Router, React Query, Google Maps SDK, Context API, React Redux, Vue 3, D3.js, Google Maps, MobX, Liquibase, PayPal API, Stripe API, Playwright, WebGL, React Motion, MyBatis, Chart.js

Tools

Prisma, Bitbucket, NPM, Docker Compose, Jira, Cron, Redux Toolkit, Google Analytics, Firebase Analytics, Slack, GitHub, Stripe Checkout, Microsoft Teams, Froala, GIS, Azure Kubernetes Service (AKS), IntelliJ IDEA, DataGrip, Terminal, RabbitMQ, Git, Apache Maven, Helm, Gatling, Figma, Webpack, Terraform, AWS SDK, AWS Step Functions, Amazon Simple Queue Service (SQS), Sentry, ChatGPT, NGINX

Languages

JavaScript, CSS, Java, TypeScript, HTML, SQL, HTML5, ECMAScript (ES6), Python, Kotlin, Go, PHP, CSS3, GraphQL, Rust, SCSS, Sass, Java 8, AMPscript, Swift, C#, Solidity, XML, SAML

Frameworks

AngularJS, Spring Boot, Angular, Spring, Redux, Next.js, Express.js, Spring MVC, Tailwind CSS, Spring Microservice, NestJS, Hibernate, Material UI, Bootstrap, Jest, React Native, Thymeleaf, Flask, Django, Nuxt.js, Laravel, Vue SSR, OAuth 2, Symfony, gRPC, Realtime, Electron, .NET Core, WebFlux, Selenium, Vuetify, MUI CSS, JUnit, tRPC

Paradigms

REST, Scrum, Functional Programming, Responsive, Unit Testing, Agile, MEAN Stack, Event-driven Programming, Event-driven Architecture, Responsive Web Design (RWD), Real-time Systems, Object-relational Mapping (ORM), Database Design, Object-oriented Design (OOD), Object-oriented Programming (OOP), Microservices, Asynchronous Programming, Search Engine Optimization (SEO), DevOps, Test-driven Development (TDD), Human-computer Interaction (HCI), Parallel Computing, Testing, ETL, Web Architecture, DevSecOps, Requirements Analysis

Platforms

Docker, Kubernetes, Amazon Web Services (AWS), Firebase, Blockchain, Google Cloud Platform (GCP), DigitalOcean, Shopify, Vercel, Heroku, Mapbox, Apache Kafka, Ethereum, Twilio, Mobile, MacOS, Azure, Oracle, AWS Elastic Beanstalk, JavaFX, Netlify, iOS, Android, Sanity Studio, AWS Lambda, Amazon EC2

Storage

PostgreSQL, MySQL, MongoDB, RDBMS, Amazon S3 (AWS S3), SQLite, JSON/XML Schemas, Databases, Elasticsearch, Redis, NoSQL, Relational Databases, PL/SQL, Amazon Aurora, Amazon DynamoDB, API Databases

Industry Expertise

Healthcare

Other

Software Engineering, Software Architecture, Algorithms, Full-stack, APIs, Architecture, Back-end Development, Web Development, Back-end, Front-end, User Interface (UI), Responsive Web Apps, DOM, Workflow Automation, Full-stack Development, PDF, API Integration, Application State Management, UI Components, Design Systems, Integration, Authorization, User Authentication, Authentication, Facebook, Material Design, UI Development, Front-end Development, Web Hosting, Front-end Design, Web Scraping, FastAPI, Scraping, Data Scraping, TextSearch, Team Leadership, System Architecture, System Design, Custom Solutions, Responsiveness, CI/CD Pipelines, Animation, Design, OAuth, Progressive Web Applications (PWAs), RESTful Services, Web Applications, Technical Writing, Mobile First, Interactive UI, Data Visualization, Web App Development, Cross-browser Compatibility, Responsive Design, WebSockets, Ethers.js, HTTP REST, Forms, Leadership, Software Design, Scalability, Web Scalability, Solution Architecture, CTO, Integration Testing, Multithreading, Gatsby, Web UI, Web UX, User Experience (UX), Technical Leadership, Google Tag Manager, Data Analytics, OpenAI GPT-4 API, Google SEO, MERN Stack, Web Usability, Serverless, Atomic Design, Game Development, Webhooks, Zustand, Technical Consulting, eCommerce, Payment Processing, Payment APIs, Cloud, Accessibility, Online Banking, Digital Payments, Mobile Banking, Storybook, Data Management, Startups, Pixel Perfect, WCAG 2, UI Motion, IntelliJ SDK, NextAuth.js, Project Planning, Templates, User Roles, Data Architecture, Minimum Viable Product (MVP), Code Review, Dashboards, CSS Animations, Forums & Social Networking Portals, SVG Animation, Open Source, Decentralized Finance (DeFi), React Server Components, Deployment, UI Libraries, Routing, SvelteKit, API Design, Strapi, Business, Network Engineering, IT Systems Architecture, Quality Assurance (QA), Network Configuration, Subnet, Cisco Routers, Cisco Switches, Internet Computing, Distributed Systems, Data Structures, TypeORM, Axios, Blockchain & Cryptocurrency, Web Platforms, Content Management Systems (CMS), Amazon RDS, Data Modeling, Fintech, NATS, Single Sign-on (SSO), SEO Tools, SaaS, Programming, Pinia, Web3, Payment Gateways, Video Streaming, Artificial Intelligence (AI), Reports, Styled-components, Mobile-first Design, Cryptocurrency, Smart Contracts, Supabase, Endpoint Management, Discovery, Discovery Workshops, Online Payments, Solana, GitHub Actions, SVG, SDKs, Vite, Chakra UI, API Testing, Data Extraction, OpenAI

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