Tilmann B.

I'm a PhD computer scientist and hands-on AI architect with 30+ years building production AI at global scale. I've led engineering at PayPal, Intuit (Credit Karma), and Eventbrite, shipping mission-critical systems that served millions and generated hundreds of millions in revenue. I architect and lead every engagement. At Credit Karma I built the recommendation engine for 130M members: $400M+ per year from 40B predictions a day, plus $20M in annual cloud savings. What I build: - Agentic AI & LLM systems: MCP servers, multi-agent orchestration, RAG. - Personalization & recommendation engines that serve millions daily. - AI cost & performance tuning. Millions saved. - End-to-end delivery, from architecture to production. - 22 US patents. ACM KDD Area Chair. IBM Research Fellowship. How I work: I'm the architect on every project. When scope calls for more hands, my Helix Logic team of senior ML engineers scales delivery, so you get research-grade work at production speed. You work with the principal, never handed down to juniors. Why me: most AI hires give you theory or code. I bring both, plus a track record of revenue and cost impact from systems used daily by millions. If you need AI built right the first time, let's talk.