Anton Onyshchenko
Founding Engineer at DOPE Markets Inc.
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolAnton Onyshchenko is a senior software engineer based in Berlin with 14 years of experience building production-grade systems end-to-end, with a backend specialty across Kotlin/JVM, Scala and PostgreSQL. He thrives in small, high-ownership teams and has repeatedly taken prototypes to production—most recently architecting a real-time trading terminal processing ~1000 blockchain events/sec as a founding engineer. Comfortable across the full stack (TypeScript/React front-ends to AWS infrastructure), he favors pragmatic engineering over ideology to deliver measurable business value. His background includes identity and access services at scale, price-oracle and custody systems for crypto, and a track record of launching customer-facing features quickly. An active contributor to core libraries (notably deep refactors and API work on the ZIO project), he understands concurrency and error-handling at a library level as well as in distributed services. He pairs hands-on coding with product sensibility, often shipping first releases within months in resource-constrained teams.
14 years of coding experience
18 years of employment as a software developer
Master's degree, Computer Software Engineering, Master's degree, Computer Software Engineering at APEPS department of Igor Sikorsky Kyiv Polytechnic Institute
English, Ukrainian
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (13)
asynchronous10
type-system10
effects10
error-handling10
zio10
functional-programming10
functional-programming-language10
async10
concurrency10
scala10
stm9
transactional-memory9
stream8
Programming languages (14)
Github contributions (5)
zio/zio
Jun 2018 - Nov 2019
ZIO — A type-safe, composable library for async and concurrent programming in Scala
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits, 4 PRs, 12 comments in 1 year 4 months
Contributions summary:Anton primarily contributed to the core library of ZIO, focusing on enhancing its functionality and fixing existing issues. Their work involved introducing `Void` as a type, renaming classes and methods, and implementing new features, such as `IO.done`. These changes demonstrate a deep understanding of the ZIO library's internal workings, including its error handling and concurrency mechanisms. The commits reveal significant effort in refactoring and improving the core API.
functional-programmingqueuesstreamsasynchronicityasync
env0der/dotfiles
Jul 2015 - Aug 2019
Contributions:161 commits, 146 pushes, 1 branch in 4 years 1 month
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