Engineering leader with 10+ years building products at the intersection of machine learning and security. Currently CTO & Co-founder at Promptfoo, building open-source LLM security tools. Stanford MS, YC alum, previously VP Engineering.
Promptfoo discovers and eliminates LLM risks before they reach production through automated
red-teaming and vulnerability analysis. Our open-source, developer-first approach has made Promptfoo the most
widely adopted LLM security tool, with over 200,000 users at companies like Anthropic, Amazon, and Shopify.
Own company-wide technical strategy and product roadmap, balancing open-source community, commercial product, and research investments.
Led technical due diligence for $23M+ in venture financing from Insight Partners and Andreessen Horowitz.
Built and scaled the engineering team from founding through Series A, including hiring, leveling, and performance management.
Led development of core evaluation framework, vulnerability scanning, and automated red-teaming capabilities.
Smile Identity provides ML-powered identity verification APIs used by banks, fintechs, and
telcos across Africa. Promoted from Director to VP Engineering to VP Engineering & Head of AI within one year,
leading teams building APIs that now process hundreds of millions of identity checks.
Owned engineering org design, headcount planning, and hiring across backend and ML teams, growing to 20+ engineers.
Transformed engineering velocity from weekly releases to continuous deployment, migrating to TypeScript, adding tests in CI, and leading ceremonies.
Re-architected inference APIs on AWS Lambda, scaling from 1,000 to 1M+ users per day and cutting job time from 30+ seconds to 7 seconds.
Built computer vision pipelines for liveness detection certification.
Pitched, designed, and shipped a fraud detection product using 1-N facial recognition with embeddings and vector search.
Arthena was a quantitative art investment platform backed by Anthemis,
Foundation Capital, and Y Combinator.
Built Arthena from idea to acquisition by Masterworks in 2023.
Co-founded Arthena and led technical strategy; sat on board and led fundraising, including debt financing for a 9-figure investment vehicle in the auction guarantee market.
Built and managed a cross-functional team of 20 engineers, data scientists, and analysts.
Built data pipelines, quantitative research tools, and visualization systems to scale investment research and augment analyst decision-making.
Developed valuation models on irregularly-sampled time series using graph embeddings, probabilistic forecasting with calibrated prediction intervals, and online learning with walk-forward validation.
Designed micro-service architecture for data collection, feature engineering, backtesting, and reporting.
Matroid is a computer vision platform for creating and deploying detectors, now funded by
NEA and Accel. I co-founded
the company and built the initial product through our first fundraise.
Defined company vision and product strategy.
Architected and built the initial detector platform for identifying objects, events, and patterns in video.