Łukasz Sarnacki
Senior Product Engineer at Sticker Mule
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolŁukasz Sarnacki is a Senior Product Engineer based in Warsaw with 13 years of experience delivering user-focused web applications and front-end improvements. He has a strong Ruby on Rails and front-end background, having progressed from RoR roles to senior engineering positions at companies like Hopin, Wayflyer and Sticker Mule. Łukasz contributes to well-known open-source projects such as the Ember-based Travis CI web client, where he improved UI behavior and cross-browser layouts to enhance developer experience. He combines hands-on implementation with product sensibility, often tackling subtle UX issues (like menu state and build alignment) that noticeably improve usability. Known for steady cross-team delivery in fast-moving startups, he blends pragmatic engineering with attention to polish.
13 years of coding experience
13 years of employment as a software developer
Polsko-Japońska Wyższa Szkoła Technik Komputerowych w Warszawie
Github Skills (6)
javascript10
travis-ci10
ember10
sass9
css8
html8
Programming languages (5)
Github contributions (5)
travis-ci/travis-web
Feb 2013 - Jul 2013
The Ember web client for Travis CI
Role in this project:
Front-end Developer
Front-end DeveloperContributions:5 commits in 5 months
Contributions summary:Łukasz primarily focused on enhancing the user interface and improving the functionality of the Travis CI web client. Their contributions involved fixing layout issues in the frontend (e.g., build number alignment in Firefox), disabling and enabling links in the cog menu based on user login status, and replacing GitHub references with links. The user demonstrated skills in modifying Ember templates, styles, and JavaScript code to achieve these improvements. These changes directly impacted the user experience and the way issues were displayed.
embertravis-cijavascript
lukesarnacki/jetbrains-settings
Dec 2019 - Oct 2020
Contributions:152 pushes, 1 branch in 9 months
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