PostgreSQL 9
- Docker Compose Stack Patterns — 50+ Production Stacks
- Multi-Engine Analytics Stack — Postgres, Timescale, ClickHouse, DuckDB
- nominatim — OpenStreetMap Geocoder Deployment Recipes
- Markets Platform — TradePlatform Backend at Scale
- Dyvenia — Senior Data Engineer (Python ETL & CRM Pipelines)
- Immowelt AG — Geospatial Search at 80M+ Addresses
- WhereGroup — Mapbender GIS Product (1M+ Users)
- Mapbender Digitizer — Spatial Editing Module for Public-Sector Geoportals
- Keynote SIGOS GmbH — Backend & Database Engineering (2012–2013)