Head of Engineering at Trustworthy · Principal/Staff Engineer · AI-native systems architect Atlanta, GA · Nairobi, Kenya

Hands-on engineering leader and full-stack builder who still ships production code. I architect and personally implement AI-native systems end to end — agentic workflows, retrieval and context engineering, LLM evaluation, backend services, infrastructure, and security.

Trustworthy — an AI-native consumer platform ("The Family Operating System®") that organizes, secures, and answers questions about families' most sensitive information. I designed and built the RAG pipeline behind grounded document Q&A, the agentic workflows that classify, extract, link, and file documents, and the LLM evaluation framework that gates every AI release. I also own the security posture: SOC 2, third-party pen testing, a bug-bounty program, and encrypted, privacy-preserving data architecture.

Kidplay Technologies — five consumer parenting apps built solo (Doggy Time, Potty Whiz, Chore Boss, Kid Hop, Fever Whiz). 500,000+ combined downloads and $100K+ ARR three years running. Sole engineer, designer, and operator across Flutter, Swift/watchOS, Android, Ruby on Rails, sync infrastructure, and cloud.

• StreamLabs — smart-home water monitoring serving hundreds of thousands of connected devices; now sold at Home Depot, Lowe's, Best Buy, and Amazon
• BRCK — rugged, self-powered connectivity hardware and cloud software for low-infrastructure environments
• Ushahidi — co-founder and Director of Technology. Open-source crisis mapping used in 100+ countries, translated into 30+ languages, reaching 20M+ people, for clients including the United Nations

Most of what I build lives in private and company repositories — the public repos here that GitHub ranks by star count are largely Ushahidi-era plugins and forks from 2010–2013. The pinned repositories above are a better picture of current work, and kobia.me has the full case studies.

RAG · vector search & embeddings · agentic workflows · LLM evaluation · prompt & context engineering · LLMOps Python · Ruby · TypeScript · Go · Swift · Kotlin · Dart Rails · Django · Node · React · Next.js · event-driven systems Postgres · DynamoDB · Redis · vector DBs · Elasticsearch · Text-To-Speech · Speech-To-Text AWS · Azure · GCP · IaC · CI/CD · containers · observability SOC 2 · threat modeling · encryption · secure data architecture

MIT Director's Fellow · MIT Technology Review TR35 (Top Innovator Under 35) · MIT Technology Review Humanitarian of the Year · Fast Company Most Creative People in Business · Knight-Batten Award for Innovation in Journalism