Rainer Hahnekamp

Rainer Hahnekamp is a Google Developer Expert (GDE) for Angular and a seasoned software architect with over 15 years of experience building production-critical enterprise applications — including a long tenure as team lead at Mars, Inc., using Angular and Spring.

As a Trusted Collaborator in the NGRX team, Rainer brings deep expertise in state management, reactive patterns, and modern TypeScript. He speaks regularly at conferences such as Devoxx BE, ngRome, ngPoland, Basta, JAX, and WeAreDevelopers, and publishes articles in heise developer, the Java Magazin, and dot.net developer.

Rainer runs a popular YouTube channel with Angular-specific content, publishes Ng-News (a weekly Angular video newsletter), and is now applying his engineering rigour to the AI space — teaching developers how to integrate LLMs and agents into production TypeScript applications using the Claude API, OpenAI, and modern tooling.