Marek Rjelka

I’m a Senior Backend Engineer with 6+ years building production Node.js/TypeScript microservices and event-driven architectures. I focus on designing APIs and systems that stay reliable under real industrial constraints.

I founded and led a deep-tech company from concept to series deployment for industrial customers like Volkswagen and SpaceX. I architected a complete backend platform, including REST and GraphQL APIs, real-time monitoring data pipelines, and end-to-end traceability across production lines.

I bring strong technical depth across infrastructure and ML/Computer Vision. I’ve deployed containerized backends on AWS using Docker and CI/CD, and I’ve built ML-powered optical identification solutions with PyTorch and ONNX for extreme operational conditions.

With a Dr.-Ing. in Electrical Engineering and a track record of publications and patents, I now apply systems-level backend engineering to SaaS platforms. My style is engineering-first: API-first design, event-driven workflows, automated testing, and clear operational ownership.