Niklas TatBackend & Platform EngineerProjects
A selection of my work – production systems, open-source tools and side projects across backend, platform and infrastructure.
Composite GitHub Action for automated version management and release publishing using conventional commits.
Composite GitHub Action for the Helm chart lifecycle — scanning, linting, and OCI registry publishing.
Helm chart monorepo for Kubernetes infrastructure and services.
My personal portfolio – server-side rendered in Rust and a playground for new ideas.
Digital event management and ticketing platform.
OAuth2 authorization service for registering and authenticating users.
Admin bot for TeamSpeak servers: protects designated groups, creates support channels automatically and ships further admin tools.
Team project: a self-built probe rode a weather balloon into the upper stratosphere and captured footage of Earth's curvature.
Spring Boot-based OAuth2 server (Authorization Code & Client Credentials flows). Persistence with PostgreSQL via Hibernate, containerized with Docker, deployed to Kubernetes via Helm. Exposes endpoints for user registration, login, token issuing and token validation. Schema updates via Hibernate migrations, test coverage with JUnit and Mockito.
Islands surfacing …