I design and build data-driven web applications, from interactive interfaces to APIs and automation.
Full-stack order import portal for Amazon, Shopify, and custom spreadsheet exports. Normalizes messy CSV/TSV/JSON/Excel data into clean MongoDB records with preview validation, duplicate detection, configurable templates, and a built-in order explorer.
Venue-finding app that solves the "where should we meet?" problem. Scores nearby venues using a composite algorithm weighted 60% on travel convenience and 40% on fairness, with interactive maps, saved friend groups, and Stripe-based usage quotas.
Interactive GIS platform for analyzing 50,000+ agricultural parcels with real-time soil classification data. Features advanced multi-criteria search, vector tile visualization, and custom spatial algorithms for point-in-polygon soil sampling across parcel boundaries.
Automated system that syncs 1000+ Shopify products with supplier CSV feeds in real-time. Monitors and updates prices, inventory, and availability using change detection and PostgreSQL storage. Features a dashboard for manual control and automated cron scheduling for hands-free dropshipping.
Real-time tracking of 1000+ public transit vehicles across Berlin's U-Bahn, S-Bahn, tram, and bus networks. Features live filtering, route overlays, and optimized API polling with in-memory caching.
I'm a Berlin-based full-stack developer with a background in data analysis and research. I turn business requirements into practical systems, from data modeling and API architecture to implementation, testing, and deployment.
My recent work combines backend services in Node.js and PostgreSQL, data workflows in Python and SQL, and direct collaboration with non-technical clients to shape reliable, feasible products.