I'm Mathias Lafeldt, an indie product engineer from Germany.

I started programming in the early 2000s to create my first tools for hacking video games. I've been hooked on bits & bytes ever since.

After running production systems on AWS for a decade, I thought cloud consulting would be my true calling, only to realize that I'm happiest when building products for other developers.

I still love the cloud — the future belongs to serverless architectures — but shipping delightful products requires expertise across the entire stack, not just backend infrastructure.

As a full-stack engineer, I'm currently deep into Rust / Zig / TypeScript, Cloudflare, Astro, and DuckDB — while using AI for everything from ideation and prototyping to design and marketing.

I enjoy sharing what I've learned along the way.

Freelance for hire

Over the years, I've helped companies modernize dozens of legacy applications and worked on multiple SaaS products, including a website builder, a chaos engineering platform, and a GraphQL-at-the-edge provider.

I'm available for new client engagements ranging from one-time support to long-term product development. Please contact me if you have a project in mind or believe I might be the right fit to augment your team.

—Mathias