Katja Wittfoth
Senior Data Scientist
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolKatja Wittfoth is a Senior Data Scientist with 8+ years of experience combining strategic finance and hands-on ML to drive growth at high‑growth SaaS, fintech, and health tech startups. As the founding data scientist at Silo she built the end‑to‑end data stack, shipped revenue‑driving AI features (from LLM order management to fraud detection), and scaled analytics capabilities through Series C. She’s led product and revenue-focused data initiatives at PicnicHealth and Mercury, improving engagement, reducing churn, and accelerating GTM with experiments, causal inference, and production ML. Trained with a Master’s in Data Science and a deep finance background from Bayer, she uniquely bridges CFO‑level strategic insight with executional ML engineering. Katja also advises early‑stage startups as a fractional data science manager, notably developing fertility prediction algorithms at Mira, and is known for turning complex external and internal data sources into practical, revenue‑impacting products.
8 years of coding experience
10 years of employment as a software developer
Bachelor of Business Administration (Hons), Economics & Finance (Quant), Bachelor of Business Administration (Hons), Economics & Finance (Quant) at Hochschule StralsundMaster's Degree Data Science, Master's Degree Data Science at University of San FranciscoComputer Programming, Computer Programming at UC Berkeley Extension
German, Russian, English
Github Skills (3)
singer-io1
singer1
api1
Programming languages (1)
Github contributions (5)
katjawittfoth/Aligned_Yoga_App
May 2019 - Jun 2019
Contributions:20 commits, 18 pushes, 1 branch in 6 days
katjawittfoth/Shark_Attacks
May 2019 - May 2019
Contributions:82 commits, 73 pushes, 1 branch in 12 days
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.