Siarhei Keller
Product & Growth at BADideas.fund
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolSiarhei Keller is a product and growth leader based in Warsaw with 13+ years of cross-functional experience spanning growth, product management, data science, engineering and cybersecurity. He has a strong track record of driving product-led growth and experimentation—raising activation, adoption and free-to-paid conversion across companies like Apollo.io and PandaDoc while securing multi-million ARR lifts through workflow optimizations. Equally comfortable in code and strategy, he bootstrapped data infrastructure and BI at PandaDoc, led NLP pipelines for feedback prioritization, and built early full‑stack systems and A/B testing pipelines. As an investor and mentor at BADideas.fund and gosu.team, he advises startups on scaling product, analytics and go-to-market execution. He blends hands-on technical chops (Python, Kafka, Redshift, dbt, React) with a growth mindset, often turning analytics into concrete roadmap wins.
11 years of coding experience
10 years of employment as a software developer
Bachelor's degree, Information Technology and Automation, Bachelor's degree, Information Technology and Automation at Belarusian State University of Informatics and Radioelectronics
English, German, Russian, Polish
Github Skills (151)
yum10
dashboard10
postgresql10
python10
deep-learning10
clojure10
metabase10
sql10
neural-network10
data-visualization10
database10
mysql10
analytics10
tensorflow10
slack10
Programming languages (11)
Github contributions (5)
izdi/elm-cheat-sheet
Feb 2016 - Apr 2018
Contributions:40 commits, 12 PRs, 36 pushes in 2 years 3 months
elm
izdi/sergeykeller.com
Feb 2016 - Jan 2023
Contributions:82 commits, 131 pushes, 3 branches in 6 years 11 months
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