Full-Stack Software Developer · Cologne
I build web products with React and TypeScript, from the interface to data, access control and production operations.
At RelationFlow / Everlast.ai · since June 2026
Three projects show how I work: in a product team, on a tournament app and on an open-source developer tool.
Development in a team
An AI workspace for businesses with chat, agents, knowledge sources and integrations. My contribution in the team: reliable chat and document workflows, connectors and Community.
Next.js, React, TypeScript, Supabase, PostgreSQL
Personal project
Plan and follow darts tournaments live: group stages, brackets, scoring, player statistics and cost planning. Available on the web and Android.
React, TypeScript, Supabase, PostgreSQL, Capacitor
Personal project
Voice interface for Claude Code on macOS with local speech recognition, tool approvals and speech output. Built with React, Rust and Tauri.
Claude Agent SDK, React, TypeScript, Rust, Tauri, whisper.cpp
Jun 2026 - present
RelationFlow / Everlast.aiSoftware Developer
Since June 2026, I have worked on the AI platform at RelationFlow / Everlast.ai: chat, integrations, document workflows and Community. Delivered feeds, search, publishing, catalogues, ratings and moderation workflows
Sep 2023 - May 2026
fpi-eVIT GmbH & Co. KGMid-Level Software Developer
Developed production enterprise software with Vue.js in an agile team. Independently built a Headless CMS with React and TypeScript
Apr 2023 - Sep 2023
Kehrtour.deJunior Software Developer
Software development in JavaScript and TypeScript. Migrated a Windows application to the web
I build web and AI products end-to-end: from clear product flows and resilient data models to observability and delivery.
Since June 2026, I have worked on the AI platform at RelationFlow / Everlast.ai: chat, integrations, document workflows and Community.
Previously at fpi-eVIT, I developed enterprise software with Vue.js and independently delivered React and AWS solutions. I study Computer Science at Hochschule Bonn-Rhein-Sieg alongside my professional work.
Professional work, personal products and contributions. Explore the rest of my work here.
Corporate LLM CommunityDevelopment in a team
Community platform for Corporate LLM. Teams discover, share and rate agents, prompts, skills and AI models in a secure, observable application.
Next.js, React, TypeScript, Supabase, Sentry, PostHog
CYCLIXPersonal project
Mobile app for industrial maintenance: manage machines, maintenance cycles and spare parts. With AI nameplate recognition, team roles and push notifications.
Claude API, React Native, TypeScript, Supabase, Expo
Card Value ScannerPersonal project
Scan, identify and value trading cards using market prices. Mobile app with a collection and scan history, including the React landing page at cardvaluescanner.de.
Claude Vision API, React Native, Expo, TypeScript, Supabase, eBay API
CINETRACKERPersonal project
Social film platform with reviews, watchlists and statistics. Independent full-stack project with guest access, achievements and TMDB and OMDB film data.
React, Node.js, Express, MongoDB, Chakra UI, TMDB API
Headless CMSDevelopment in a team
Built a custom Headless CMS for fpi-eVIT. React-based frontend with flexible content modelling for internal applications.
React, TypeScript, Docker
AWS Proxy ServiceDevelopment in a team
Serverless geocoding middleware as an AWS Lambda function. Unifies OpenStreetMap and HERE behind a single API with intelligent fallback logic and HMAC-secured authentication.
AWS Lambda, Python, FastAPI, Pydantic
Web MigrationDevelopment in a team
Migrated an existing Windows desktop application to a browser-based web application using TypeScript.
TypeScript, JavaScript
fpi-eVIT Landing PageDevelopment in a team
Landing page for fpi-eVIT - built with React as part of my work on the team.
React, TypeScript
KernfokusHave an idea or want to talk software? Get in touch.