For product and engineering leads
Product engineering with AI
A product built, a grown platform untangled, or a team that wants to work with AI without losing control of the codebase.
Freelance principal-level software engineer
Put AI to work. Stay in control.
I help product teams build new products from the ground up or evolve grown platforms into clear, maintainable ones.
Engagements at
Two ways to work together
For small and mid-sized companies
AI automation for your processes and your knowledge
Workflows where AI removes real work, automated so they run reliably, and assistants that answer from your own documents.
Starts with a free analysis.Explore AI automation
Background
In software development since 2005. Self-employed since 2018. Started with .NET and C#, moved to JavaScript early, React since 2015. Since then frontend architecture on web and mobile (React Native), across marketplaces, fintech, e-commerce, edtech and construction tech, with the whole stack behind it: backend and delivery.
Most recently the web architecture and delivery of an AI-assisted content platform built from the ground up. RAG and agentic systems, built into my own products. The tools have changed three times, the principles have not. Event Storming where a domain needs it. Domain-driven design and CQRS where the domain earns them.
Marketplaces · Fintech · E-commerce · EdTech · Construction tech
Based in Berlin. Remote and hybrid.
Freelance, contract or advisory, available for selected engagements.
René Viering