Krzysztof Modras
Director Of Engineering And Product at Ghostery
Warsaw Metropolitan Area Poland
Summary
🤩
Rockstar🎓
Top SchoolKrzysztof Modras is a seasoned engineering and product leader with 13 years of experience building privacy-focused browser technology and web platforms from Warsaw. As Director of Engineering and Product at Ghostery (and previously at Cliqz), he blends hands-on full-stack development—contributions to Ghostery’s extension and Broccoli’s build tooling—with strategic product leadership. His background includes low-level browser work for Mozilla (WebDriver BiDi and remote agents), showing deep expertise in browser internals and automation. Comfortable shipping across frontend, backend and build systems, he favors pragmatic engineering practices and test-driven improvements. Known for tracking the trackers, he brings a privacy-first mindset to product decisions and open-source collaboration.
13 years of coding experience
14 years of employment as a software developer
Information Technology, Information Technology at Polish-Japanese Academy of Information Technology
English, Polish
Stackoverflow
1,425reputation
351kreached
36answers
5questions
Github Skills (31)
javascript10
webdriver10
firefox-webextension10
bidi10
browser-extension10
testing10
firefox-addon10
chrome-extension10
google-chrome-extension10
privacy10
broccoli10
opera-extension10
nodejs10
webextension10
cli10
Programming languages (18)
Github contributions (5)
ghostery/ghostery-extension
Mar 2018 - Jan 2023
Ghostery Browser Extension for Firefox, Chrome, Opera, Edge and Safari
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:82 releases, 757 reviews, 306 commits in 4 years 11 months
Contributions summary:Krzysztof primarily contributed to the development of the Ghostery browser extension, with changes across the frontend and backend. Their work included implementing features like button counter updates and dashboard statistics for the new tab page. The user also worked on cross-extension API enhancements, including user authentication and communication, improving functionality and user experience within the extension. Additionally, they were involved in UI updates, cosmetic filter support, and integrating WhoTracksMe features.
firefoxopera-extensionbrowserprivacyedge-extension
broccolijs/broccoli
Jun 2017 - Dec 2017
Browser compilation library – an asset pipeline for applications that run in the browser
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:20 commits, 15 PRs, 55 comments in 5 months
Contributions summary:Krzysztof focused on improving the command-line interface (CLI) and build processes of the Broccoli project. They added features like a brocfile path option and an output path option to the CLI, enabling greater flexibility in project configuration and build output. The user also wrote tests for the CLI build command and server functionality, demonstrating an emphasis on code quality. Furthermore, they addressed bugs and implemented improvements related to the --watch and --no-watch options.
compilationbrowserpipelinejavascriptasset
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