Paweł Panasewicz
Tech Lead In Payments Team at HM Revenue & Customs
Worthing, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolPaweł Panasewicz is a tech lead with 12 years of experience building and architecting payment and financial systems, currently leading the Payments team at HM Revenue & Customs from Worthing, UK. He combines hands-on Scala and Java development with pragmatic architecture for microservices, Akka-based streaming, and cloud-native tooling (AWS, Docker, Jenkins), delivering card, direct debit and open-banking integrations at scale. A disciplined practitioner of Agile and TDD, he regularly pairs strong testing culture with observability (Kibana, Grafana) to keep critical revenue flows resilient and auditable. Paweł contributes to open-source tooling—extending the popular macwire DI library to support Akka actors—showing deep familiarity with macros and type-safe dependency injection. He’s equally comfortable leading teams and doing detailed code reviews, and he runs a machine learning study group outside work, reflecting continuous learning beyond core backend engineering.
12 years of coding experience
11 years of employment as a software developer
Warsaw University of Technology
Stackoverflow
1,841reputation
180kreached
28answers
38questions
Github Skills (12)
testing10
macros10
akka10
dependency-injection10
scala10
sh6
scalatags6
html6
sbt6
implicit6
mysql6
intellij-idea6
Programming languages (5)
Github contributions (5)
softwaremill/macwire
Dec 2016 - Feb 2017
Zero-cost, compile-time, type-safe dependency injection library.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:60 commits, 3 PRs, 31 comments in 2 months
Contributions summary:Paweł primarily contributed to the `macwire` library, which is a compile-time dependency injection tool. Their work focused on extending the library to support Akka actors, specifically implementing `wireProps`, `wireAnonymousActor`, and `wireActor` functionalities for dependency injection in Akka applications. These changes involved the creation of macros, integration with the Akka framework, and tests to ensure proper functionality.
macwireinjectiondependency-injectionscaladependency-injection-library
hmrc/p800-refunds-stubs
Oct 2023 - May 2024
Contributions:27 reviews, 33 PRs, 41 pushes in 7 months
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