Marcin Stachniuk
Senior Software Engineer at Sonar
Steinhausen, Zug, Switzerland
Summary
👤
Senior🎓
Top SchoolMarcin Stachniuk is a Senior Software Engineer with 13 years of hands-on experience specializing in JVM ecosystems (Java, Kotlin, Scala, Groovy) and a Master's in Computer Science from Wroclaw University of Science and Technology. He designs pragmatic architectures and writes clean, testable code across industries including finance, healthcare, automotive, and mobile games, with a strong focus on CI/CD, automation and developer experience. Marcin has a track record of extracting services from monoliths, building proofs of concept, improving testability and reducing technical debt at companies like Collibra, Luxoft and Sonar. He pairs technical delivery with knowledge sharing—public speaking, mentoring, interviewing and representing teams at conferences—helping shape engineering culture as well as systems. Based in Steinhausen, Switzerland, he brings a practical blend of hands-on implementation and systems thinking that often surfaces in improving developer workflows and automating repeatable tasks.
13 years of coding experience
12 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at Wroclaw University of Science and Technology
Stackoverflow
766reputation
133kreached
16answers
4questions
Github Skills (142)
analyser10
testing10
specification10
static-analysis10
mocks10
sonarcloud10
analyzer10
graphql-subscriptions10
java10
mocking10
rule10
mockito10
static-code-analysis10
spec10
sonarqube10
Programming languages (12)
Github contributions (5)
mstachniuk/ci-skip
Nov 2020 - May 2022
GitHub Actions to skip build execution based on commit message
Contributions:1 release, 6 reviews, 68 commits in 1 year 6 months
skipmessageexecutioncommit
wroclawjug/wroclawjug.github.io
Jan 2018 - Oct 2019
Strona Wrocławskiego JUGa (Java User Group)
Contributions:109 commits, 70 PRs, 72 pushes in 1 year 10 months
javauser-group
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