Mateusz Kubuszok is a Staff Back-End Engineer with 12 years of experience building scalable, functional Scala systems and tooling across startups and large companies. He has driven backend architecture and service development at companies like SwissBorg, SiriusXM, Zalando and currently Chili Piper, and founded a consultancy to deliver bespoke Scala solutions. A core contributor to the popular open-source Chimney library (scalalandio/chimney), he focuses on boilerplate-free, type-safe data transformations and has extended its build, Scala.js support and polymorphic use cases. Passionate about functional programming and developer experience, he combines deep practical expertise in Cats Effect, AWS and microservices with a penchant for teaching—maintaining a technical blog and public speaking. Based in Żory, Poland, he prefers remote collaboration and is selective about tech stacks, favoring idiomatic Scala over Java-heavy frameworks.
12 years of coding experience
10 years of employment as a software developer
Master of Science (MSc) Computer Science (Algorythmics), Master of Science (MSc) Computer Science (Algorythmics) at Wrocław University of Science and Technology
Scala library for boilerplate-free, type-safe data transformations
Role in this project:
Back-end Developer
Contributions:28 releases, 106 reviews, 35 commits in 5 years 9 months
Contributions summary:Mateusz made significant contributions to the `chimney` library, a Scala library for data transformations. Their work included initial setup of the build system and library, refactoring transformer derivation, and adding support for common data types. The user also implemented coverage measurement and Scala.js support. Further, the user handled polymorphic use cases and added initial documentation of public interfaces related to the transformer.
Static annotations for Kittens for people who don't like to write semiautomatic derivations into companion objects themselves.
Contributions:9 releases, 1 review, 92 commits in 2 years 3 months
annotationskittensscalasbtcompanion
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Mateusz Kubuszok - Staff Back-End Engineer at Chili Piper