Bartosz
Poland
Summary
👤
SeniorBartosz Dzionek is a Software Engineer and Machine Learning specialist with eight years’ experience building agentic products and search/ML systems at Google from Warsaw. He led delivery of a state-of-the-art re-ranking model that improved BEIR NDCG@5 by 3% while halving latency versus a top competitor, and built petabyte-scale training pipelines with Bayesian sampling to support diverse datasets. His work on Dialogflow FAQ search raised F1 by 15% and addressed real-world problems for Fortune 500 customers, reflecting a strong production focus beyond research. With a First Class Honours in AI from Edinburgh and data-science coursework at ETH Zürich, he blends academic rigor with hands-on GIS/photogrammetry and computer-vision interests—evident from prior camera-trap deep-learning projects achieving 99% F1. He also shares knowledge publicly, having lectured on enterprise-scale search and LLMs, and ranks among the top contributors in his Warsaw office.
8 years of coding experience
Github Skills (84)
api10
api-rest10
open-source10
chrome-extension10
firefox-addon9
accessibility9
css-frameworks9
user-control8
darkmode8
vignette7
katakana7
cli-application7
firefox7
chrome7
nas7
Programming languages (13)
Github contributions (5)
karmek-k/friendly-notes
Aug 2020 - Nov 2020
A friendly note posting service :)
Contributions:5 releases, 92 commits, 20 PRs in 3 months
notespostingmarkdown
karmek-k/ksv
Jul 2022 - Jan 2026
Web server in Rust. #42SkillsChallenge
Contributions:7 PRs, 25 pushes, 5 branches in 3 years 6 months
42skillschallengerust
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