Sebastian Gröbler
Senior Staff Engineer at PPRO
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolSebastian Gröbler is a seasoned engineering leader and hands-on senior staff engineer based in Berlin with 13 years of experience building resilient, service-oriented systems and guiding large cross-functional teams. He has led technical strategy and migrations from monoliths to cloud-native architectures at Wayfair and Quandoo, driving developer velocity, operational ownership and standardized authentication across complex ecosystems. Equally comfortable in leadership and code, he contributes to and hardens open-source Java logging and testing projects (notably improvements to logback's socket appender and cucumber-jvm test coverage), reflecting a practical focus on reliability and test automation. Known for pragmatic decision-making—embracing Einstein’s credo of persistence and willingness to discard work—he blends product sensibility, infra vision and a track record of reducing operational toil.
13 years of coding experience
10 years of employment as a software developer
Ludwig Mies van der Rohe Oberschule, BerlinAbitur, Abitur at Sartre Oberschule, BerlinBachelor of Science (B.S.), Medieninformatik, Bachelor of Science (B.S.), Medieninformatik at Beuth University of Applied Sciences Berlin (formerly Technische Fachhochschule Berlin)
English, German
Stackoverflow
311reputation
19kreached
5answers
1question
Github Skills (21)
unit-testing10
logback10
testing10
cucumber-jvm10
logger10
java10
javas10
junit10
android10
logging10
test-automation10
multithreading9
concurrency9
socket9
maven7
Programming languages (9)
Github contributions (5)
cucumber/cucumber-jvm
Sep 2013 - Jan 2015
Cucumber for the JVM
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:31 commits, 9 PRs, 5 pushes in 1 year 3 months
Contributions summary:Sebastian focused on adding and modifying test coverage within the `cucumber/cucumber-jvm` project. This involved implementing stub implementations for new formatter methods, which are crucial for defining the lifecycle of scenario executions. Furthermore, the user fixed bugs within the AndroidTestReporter, restructured the project for Maven compliance, and added essential dependencies for comprehensive testing.
cucumber-jvmjvmcucumberjavapolyglot-release
qos-ch/logback
Apr 2014 - Dec 2014
The reliable, generic, fast and flexible logging framework for Java.
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:10 commits, 1 comment in 8 months
Contributions summary:Sebastian primarily contributed to the `AbstractSocketAppender` within the logback framework. Their work involved significant refactoring to improve event handling, addressing potential event loss by using a `LinkedBlockingDeque`. The user enhanced testability through the creation of factories and the encapsulation of flushing functionality. They also wrote and improved unit tests to cover various scenarios including socket connection issues and interrupt handling.
loggerlogginggenericlogging-frameworkreliable
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