Jacek Centkowski
Senior Software Engineer II at SoftwareMill
Szczecin, West Pomeranian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolJacek Centkowski is a Senior Software Engineer II with 12+ years of experience building and architecting high-availability backend systems across fintech, streaming, and MedTech domains. He blends hands-on implementation with architecture and project leadership, having led a financial engine and invoicing workflows using Scala, Cats Effect and AWS while also maintaining large ML pipelines on Kubernetes/GCP. Comfortable with both legacy enterprise stacks and modern “X as code” CI/CD practices, he routinely steps into on-call rotations and cross-timezone collaboration to ensure production reliability. An active contributor and approver in the widely used Gerrit Code Review project, he brings deep backend insight from shipping features that improve stability and quota enforcement. Pragmatic about technical debt, he favors reactive and functional approaches to scale intensive data workloads and often rolls up his sleeves to implement the solutions he architects.
12 years of coding experience
23 years of employment as a software developer
JAVA J2EE Design Patterns, JAVA J2EE Design Patterns at ALTKOM AKADEMIA S.A.Agile Project Management, Agile Project Management at Motorola Polska ElectronicsFCE + LCCI lvl 3, English Language, FCE + LCCI lvl 3, English Language at British CouncilInternal Auditor, Quality Management, Internal Auditor, Quality Management at EKEYMaster, Software Engineering, Master, Software Engineering at West Pomeranian University of Technology in SzczecinFoundation of ERDAS - Leica Geosystems' Geographic Imaging product, Foundation of ERDAS - Leica Geosystems' Geographic Imaging product at Leica Geosystems GIS & Mapping
Github Skills (11)
javas10
jvm10
back-end-development10
gerrit10
guice10
java10
testng10
code-review10
testing10
sql8
junit5
Programming languages (8)
Github contributions (5)
GerritCodeReview/gerrit
May 2019 - Aug 2022
Gerrit Code Review - (mirror of https://gerrit.googlesource.com/gerrit)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:48 commits in 3 years 4 months
Contributions summary:Jacek primarily contributed to the back-end functionality of the Gerrit Code Review system. Their commits involved adding features related to cleaning up reviewed flags when changes are removed, merging updates, introducing repository size quota enforcement, extending quota backend functionalities, and removing account patch review data when a change is auto-abandoned. These changes demonstrate a focus on improving system stability, implementing new features, and enhancing the overall functionality and performance of the Gerrit platform.
gerrit
testng-team/testng
Nov 2020 - Nov 2020
TestNG testing framework
Role in this project:Back-end Developer & QA Engineer/Test Automation Engineer
Back-end Developer & QA Engineer/Test Automation EngineerContributions:3 reviews, 7 commits, 1 PR in 4 days
Contributions summary:Jacek contributed to the TestNG testing framework by implementing new tests for Guice module configurations, ensuring that modules are instantiated correctly and configure methods are called only once. They also refactored existing tests, and added functionality to correctly create parent-child injectors in specific scenarios. These changes involved modifying core testing classes and interfaces, demonstrating a focus on enhancing test coverage and functionality within the framework. Furthermore, the user addressed bugs related to Guice module configurations to ensure proper test execution.
testingtestngjavajvm
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.