Bartłomiej Wierciński
Senior Software Engineer at Ocado Technology
Wroclaw Metropolitan Area Poland
Summary
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Rockstar🎓
Top SchoolBartłomiej Wierciński is a Senior Software Engineer based in Wrocław with 10 years of experience building distributed, high-throughput backend systems largely in Scala and the JVM ecosystem. At Ocado Technology he architected multi-tenant warehouse and delivery services, led a packing-algorithm project that cut package volume by 10% (also his master’s thesis), and helped standardize messaging across AWS and JMS. He blends functional Scala (Cats Effect, FS2, ZIO) with pragmatic Java/Spring solutions and hands-on AWS/Kubernetes deployment experience. Comfortable collaborating directly with clients, running technical interviews, and presenting internal tech talks, he brings both delivery focus and technical mentorship to engineering teams. An engineer who moves between algorithmic optimization and production-grade service design, he’s equally at home tuning performance as defining system abstractions.
10 years of coding experience
2 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at Politechnika Wrocławska
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (161)
testing10
javascript10
client-library10
stream10
kamon10
facebook10
cats-effect9
sttp9
scalaz9
monitoring9
uri9
functional-reactive-programming9
lambda9
continuation9
distributed-tracing9
Programming languages (8)
Github contributions (5)
bwiercinski/sttp-oauth2
Feb 2021 - Jan 2023
OAuth2 client library implemented in Scala using sttp
Contributions:25 pushes, 10 branches in 1 year 10 months
client-libraryfinaglescalazscalafs2
bwiercinski/pass4s
Jun 2022 - May 2023
Pass4s is a Scala library providing an abstract layer for cross app messaging.
Contributions:17 pushes, 12 branches in 10 months
scala-librarymessaging-appscalamessaging
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