Open to opportunities

Matthias Danne

@matthiasdanne

Software developer building SPAs and APIs with React/Next.js, Angular, and C#/.NET—agile, AI-assisted, and documentation-minded.

Germany

Message

What I'm looking for

I want to build real products in agile, cross-functional teams—shipping modern SPAs and reliable APIs. I’m excited to use TypeScript with React/Next.js or Angular, strong CI/CD with Docker, and AI-assisted workflows to deliver faster without losing quality.

I’m a software developer with 5+ years of professional experience, working in agile project teams of 2–8 people. I develop SPAs with React/Next.js and Angular, and I build backend systems with C#/.NET and Node.js—always paired with PostgreSQL, code reviews, and clear documentation.

My work spans full lifecycle delivery: designing and implementing APIs (including GraphQL and REST-like endpoints), containerizing applications with Docker, and establishing CI/CD with GitHub Actions and GitHub Packages. I also lean into AI-assisted workflows (Claude, GitHub Copilot) to ship faster, from business rules engines to logistics and industrial process control projects.

Experience

Work history, roles, and key accomplishments

Software Developer

5Minds IT-Solutions GmbH / Processcube UG

Aug 2020 - Jun 2026 (5 years 10 months)

Software developer working in agile project teams (2–8 people), developing SPAs with React/Next.js and Angular. Built back-end services with C#/.NET and Node.js, and worked with PostgreSQL, Docker, and CI/CD.

React Next.js Angular TypeScript C#.NET Node PostgreSQL Prisma Entity Framework Docker GitHub Actions ArgoCD CI CD Documentation

Warehouse Management System

5Minds IT-Solutions GmbH

Jan 2025 - Jan 2026 (1 year)

Developed a warehouse management system with TypeScript, React/Next.js, and Prisma, including API endpoints and Docker-based services. Worked with GraphQL and REST-like APIs using OpenAPI 3.0.

TypeScript React Next.js Prisma PostgreSQL GraphQL REST APIs OpenAPI Docker API Development

Circular Economy Portal

5Minds IT-Solutions GmbH

Jan 2022 - Jan 2026 (4 years)

Built a circular economy portal with TypeScript/React and .NET 6 back-end functionality, including GraphQL APIs and Dockerized deployment. Implemented authorization/authentication and dynamic PDF generation in .NET.

TypeScript React C#GraphQL PostgreSQL Docker Authorization Dynamic PDF Generation GraphQL APIs

Digitization of Leasing Processes

5Minds IT-Solutions GmbH

Jan 2024 - Jan 2025 (1 year)

Digitized leasing processes by implementing workflows in BPMN and building Node-RED nodes. Connected external APIs, handled document management, and created micro-frontends with Vue.js.

TypeScript Vue.Js Node RED Document Management

Software Development Kit

5Minds IT-Solutions GmbH

Jan 2022 - Jan 2025 (3 years)

Provided components and services for building Node applications, including documentation examples and tutorials. Worked with TypeScript, React/Next.js, TailwindCSS, WebSocket/Socket.io, and CI/CD.

TypeScript React Next.js CI CD WebSockets Socket.IO Software Lifecycle Management Documentation Tutorials

Developer Skills Management

5Minds IT-Solutions GmbH

Jan 2021 - Jan 2022 (1 year)

Implemented front-end and back-end repositories and services for a developer skills management system. Worked with TypeScript/Angular, C#/.NET 5, PostgreSQL, REST APIs, Docker, and dynamic PDF generation in .NET.

TypeScript Angular C#PostgreSQL REST Docker Dynamic PDF Generation Repository Service Implementation Front End Developer

Locking System Server Cabinets

5Minds IT-Solutions GmbH

Jan 2020 - Jan 2021 (1 year)

Extended an existing application for managing locking systems on server cabinets using TypeScript and Angular. Integrated a world map from amCharts.com and customized user interface elements.

TypeScript Angular amCharts Locking System Management

Locking System Management

5Minds IT-Solutions GmbH

Jan 2025 - Present (1 year 6 months)

Developed a locking system management solution using TypeScript/Next.js, Docker, and CI/CD, with PostgreSQL and Prisma. Included UI work with TailwindCSS.

TypeScript Next.js Docker CI CD PostgreSQL Prisma

Legacy App Migration

5Minds IT-Solutions GmbH

Jan 2025 - Present (1 year 6 months)

Conceived and implemented a migration process for a legacy application for production process control, including testing and validation. Used Python, Microsoft Excel, and React as part of the work.

Python Excel React Application Migration Validation

Yard Management System

5Minds IT-Solutions GmbH

Jan 2022 - Present (4 years 6 months)

Developed a yard management system with TypeScript/React and a .NET 6 back end, including GraphQL APIs and Docker-based containerization. Added test automation using Robot Framework and Playwright.