Cezary Wojtkowski
Senior Software Engineer at UBS
Park Ridge, Illinois, United States
Summary
🤩
Rockstar🎓
Top SchoolCezary Wojtkowski is a Senior Software Engineer with 14 years of experience building performant front-end systems and production-ready components for large-scale products. He has led frontend teams and shipped features at companies from startups to enterprise—most recently at UBS after roles at Prime Video & Amazon Studios and Amount. Cezary combines a strong Computer Engineering background from UIUC with hands-on expertise in React, SVG/CSS animations, and browser media APIs, evidenced by contributions to popular open-source components like react-loading and react-webcam. He favors pragmatic refactors that improve performance and developer experience, such as replacing divs with inline SVG images and adding lifecycle-driven behaviors. Colleagues describe him as a reliable senior engineer who bridges design intent and implementation while mentoring others through code-level improvements. Based in Park Ridge, IL, he brings both depth in frontend engineering and a track record of shipping polished, user-facing interfaces.
14 years of coding experience
7 years of employment as a software developer
Computer Engineering, Computer Engineering at University of Illinois Urbana-Champaign
Stackoverflow
5,507reputation
394kreached
12answers
1question
image
top-1%
Github Skills (16)
css10
javascript10
nodejs10
svg10
webcam10
react10
image10
apple-tv6
autosuggest6
tvml6
npm6
tvos6
twitter-bootstrap6
jquery6
forms6
Programming languages (2)
Github contributions (5)
fakiolinho/react-loading
Dec 2014 - May 2016
React component for loading animations
Role in this project:
Front-end Developer
Front-end DeveloperContributions:15 commits, 3 PRs, 13 pushes in 1 year 5 months
Contributions summary:Cezary primarily focused on developing and improving the React-based loading animation component. Their contributions included moving the demo to the project root, implementing SVG animations, and controlling their styling through CSS. They also refactored the component to replace the use of a `div` with an `img` tag for inline SVG display, improving performance. Furthermore, the user streamlined the project and incorporated features like a delay before the animation is shown, fixing a related issue.
react-componentloading-animationsanimationreactloading-bar
mozmorris/react-webcam
Dec 2014 - Aug 2016
Webcam component
Role in this project:Front-end Developer
Front-end DeveloperContributions:56 commits, 16 PRs, 53 pushes in 1 year 7 months
Contributions summary:Cezary's primary contribution was implementing a webcam component using React. They added functionality for taking screenshots and fixed issues related to the webcam's functionality. Furthermore, the user updated the example application, including adding CSS filters to showcase the component's capabilities and refactoring the code to use React's component lifecycle methods. They also addressed pathing issues within the project.
getusermediareactwebcamwebcam-componentreactjs
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