Janek Klawe
Software Engineer at Jane Street
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolJanek Klawe is a seasoned software engineer with 17 years of experience building production-grade systems across finance, security, and machine learning, currently working at Jane Street in New York. He has a strong background in automated trading systems and mobile security, rising to Staff ML Engineer at Square where he led tamper detection and built data-science tooling. Janek contributes to notable open-source work on Bokeh, improving time-based scales and axis ticking—an indication of deep expertise in backend libraries and time-series visualization. Trained at Princeton and UBC in computer science, he combines rigorous academic foundations with hands-on delivery across low-latency trading, backend services, and ML infrastructure. Colleagues rely on him for pragmatic engineering and careful refactoring that keeps complex systems maintainable at scale.
17 years of coding experience
14 years of employment as a software developer
Bachelor of Science (B.S.), Computer Science Honours, Bachelor of Science (B.S.), Computer Science Honours at The University of British ColumbiaMaster of Arts (M.A.), Computer Science, Master of Arts (M.A.), Computer Science at Princeton University
Github Skills (10)
data-visualizations10
javascript10
data-visualization10
data-visualisation10
visualization10
bokeh10
visualizations10
python10
plot10
coffeescript9
Programming languages (5)
Github contributions (5)
bokeh/bokeh
Nov 2013 - Jan 2014
Interactive Data Visualization in the browser, from Python
Role in this project:
Back-end Developer
Back-end DeveloperContributions:34 commits in 2 months
Contributions summary:Janek primarily focused on implementing and improving the time-based scales within the Bokeh library. Their contributions involved significant refactoring and expansion of the ticking mechanism. They implemented new scales for days and months and made multiple revisions to the resolution and formatting of the time axes.
pythonvisualisationplottingbokehplots
jqmp/vim
Dec 2008 - Aug 2014
Contributions:56 commits in 5 years 8 months
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.