Antoni Kępiński is a self-taught software engineer based in Berlin with nine years of cross-stack experience building performant, user-focused, and privacy-minded applications. He combines hands-on development across frontend, backend, and infrastructure with product-minded thinking to ensure software reaches and delights users. An active open-source maintainer and contributor—his fixes to the widely used node-fetch library improved URL handling and code quality—he values stability and maintainability in public code. Founder of Parsify and engineer at Kombo, Antoni brings entrepreneurial initiative alongside a disciplined technical background from the Military University of Technology. Outside work he recharges through travel and reading, a habit that fuels his curiosity and practical creativity.
9 years of coding experience
Computer Science, Computer Science at Military University of Technology
High School Diploma, Computer Science, Math and Physics, High School Diploma, Computer Science, Math and Physics at Zespół Szkół Komunikacji im. Hipolita Cegielskiego w Poznaniu
A light-weight module that brings the Fetch API to Node.js
Role in this project:
Back-end Developer
Contributions:7 releases, 24 reviews, 34 commits in 1 year 4 months
Contributions summary:Antoni contributed to the `node-fetch` project by addressing several issues related to URL handling and request processing. Their work included fixing a bug that stripped question marks from URLs when no parameters were given, as well as improving coverage and fixing linting issues. They also made changes to the codebase to adhere to linter rules and improve overall code quality, ensuring the project's stability and maintainability.
☁️ Check air quality near you quickly, using Airly API
Contributions:100 commits, 4 PRs, 59 pushes in 5 months
apiairlyair-qualityairnodejs
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.