At Cambium Networks, I implemented REST APIs and fixed bugs in the subscription service. I also improved test coverage using AI tools and reduced infrastructure costs by moving logging and telemetry from AWS CloudWatch to an in-house Loki deployment.
At HEIDI - Heimat Digital, I developed and maintained REST APIs with Node.js and TypeScript. I designed backend and database architectures, documented APIs with Swagger, and deployed services on Google Cloud Platform and Hetzner Ubuntu servers.
At Neoito, I developed RESTful APIs and WebSocket servers using Golang, and created Node.js CLI tools for integration testing. I used PostgreSQL, MongoDB, and Redis across backend services and orchestrated containerized deployments with Docker.
On the Monetization service, I owned a device subscription service in Go and PostgreSQL, exposing gRPC and HTTP REST APIs for other services and device clients. I also built a Store Management Software project with QR-code shopping and REST APIs, deployed on Hetzner.
