I'm Aien (pronounced Āyīn), a Senior Software Engineer based in Germany.

I build and scale full-stack web systems end-to-end, from React and TypeScript frontends to NestJS, Symfony, and Go services running on AWS. My focus is on clean architecture: microservices, event-driven systems, and Domain-Driven Design that hold up under real production load.

I'm currently at Soulhouse GmbH in Hamburg, leading the migration of legacy applications to a modern Vue/Nuxt stack and owning the DevOps side on AWS. Before that, I designed event-driven services at TicketIO and led a monolith-to-microservices migration at PersonalWerk, where I cut average API response times by up to 70% and absorbed 30% traffic growth with near-zero downtime.

I've been writing software since 2004, hold a B.Sc. in Computer Science from THM Giessen, and work across Node.js, TypeScript, Go, Java, and PHP. Go is the one I keep coming back to.

Long-term, I'm working toward a software architect role and, eventually, a CTO seat. Short-term, I write about engineering on this site and stay close to the community through meetups and open-source work.