Oskar Krawczyk
Founder at Positionly
Warsaw, Masovian Voivodeship, Poland
Summary
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RockstarOskar Krawczyk is a founder and seasoned front-end specialist with 12 years of experience building user-focused web products from Warsaw, Poland. He co-founded multiple ventures including Headway, JSFiddle and Positionly, blending product vision with hands-on UI/UX and front-end engineering. His background spans design-led roles at Mozilla and agencies through to leading engineering and UX at startups, giving him a rare mix of craft-level design sensibility and scalable product development. An active open-source contributor, he developed and modernized the front-end of the heyoffline library, adding multi-module builds and polished offline notification UI. Colleagues know him for shipping pragmatic, well-styled interfaces and for turning usability insights into maintainable code. He combines entrepreneurial grit with a long-running commitment to improving developer and user experiences.
12 years of coding experience
9 years of employment as a software developer
Stackoverflow
3,502reputation
233kreached
90answers
4questions
mootools
top-1%
javascript
top-5%
Github Skills (21)
javascript10
offline-mode10
offline-web-app10
offline-js10
offline-app10
mootools10
offline-browsing10
front-end-development10
vanilla-javascript10
offline-caching10
esmodules9
umd9
css8
build-automation7
html7
Programming languages (10)
Github contributions (5)
oskarkrawczyk/heyoffline
Feb 2015 - Jun 2020
Warn your users when their network goes down. Make sure they don't lose anything.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:10 commits, 5 PRs, 13 pushes in 5 years 4 months
Contributions summary:Oskar primarily focused on developing the front-end components and functionality for the "heyoffline" library. Their contributions involved refactoring code, updating the README, and adding the ability to build the project into different module formats (ESM, UMD, and CJS). They also addressed UI elements and styling by changing the styles and integrating icon features for offline notifications.
client-sidejavascriptwarnvisibilityoffline
oskarkrawczyk/honukai-iterm-zsh
Nov 2015 - Mar 2018
Honukai theme and colors for Oh My ZSH and iTerm
Contributions:12 commits, 5 PRs, 13 pushes in 2 years 4 months
dotfilesitermoh-my-zsh
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