Bartłomiej Żyliński
Scala Software Engineer at SoftwareMill
Warsaw Metropolitan Area Poland
Summary
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RockstarBartłomiej Żyliński is a Scala software engineer with six years of experience building robust backend systems and libraries, currently working at SoftwareMill in the Warsaw area. A self-taught, hands-on developer, he contributes actively to prominent open-source projects such as sttp and Bootzooka, where his work on HTTP compression and backend refactors improved reliability across multiple HTTP backends. He pairs practical engineering with community engagement—publishing articles on DZone and Medium, speaking at conferences like Devoxx Belgium, and accumulating wide readership for his technical writing. His interests sit at the intersection of software engineering and mathematics, which informs a thoughtful approach to system design and edge-case handling. Colleagues know him for quietly owning infrastructure-level problems that users never see but critically rely on.
6 years of coding experience
3 years of employment as a software developer
German, English
Stackoverflow
26reputation
226reached
1answer
0questions
Github Skills (17)
gzip10
back-end-development10
apidoc10
amazon-sqs10
testing10
http10
http4s10
scala10
http-client10
api10
scalatest10
aws10
deflate10
backend10
configuration-management9
Programming languages (5)
Github contributions (5)
softwaremill/bootzooka
Jul 2021 - Dec 2022
Simple project to quickly start developing a Scala-based microservice or web application, without the need to write login, user registration etc.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 reviews, 97 commits, 47 PRs in 1 year 5 months
Contributions summary:Bartłomiej's commits primarily revolve around updating dependencies and refactoring code related to correlation IDs and API endpoints within the `bootzooka` project. They made changes to the `CorrelationIdDecorator`, `HttpApi`, and `EndpointsToRoutes` files, suggesting involvement in the backend infrastructure. The user also updated project dependencies and refactored error handling.
developingskeletonregistrationweb-applicationplay-framework
softwaremill/sttp
Sep 2021 - Dec 2022
The Scala HTTP client you always wanted!
Role in this project:Back-end Developer
Back-end DeveloperContributions:69 reviews, 228 commits, 103 PRs in 1 year 2 months
Contributions summary:Bartłomiej primarily contributed to the sttp library by addressing issues related to compression of HTTP responses. The contributions involve implementing tests to reproduce and fix exceptions related to empty gzipped and deflated bodies. The code changes also address the handling of compressed responses within different HTTP backends, ensuring correct decompression and processing of content.
guzzlefinaglehttpclientfs2zio
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