Dominik Liebler
Senior Internal Tooling Developer at YAZIO
Bavaria, Germany
Summary
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Rockstar🎓
Top SchoolDominik Liebler is a Senior Internal Tooling Developer with 11 years of experience building developer-facing systems and data platforms, currently enabling teams at YAZIO with scalable tools using Go, PostgreSQL, Elasticsearch, Kubernetes, and HTMX. He blends a strong data engineering background—having built ETLs with Dagster, Kotlin, Spring Boot and an in-house data lake on Trino and Apache Iceberg—with hands-on internal tooling that improves developer productivity. A long-time Open Source enthusiast, Dominik contributes to ConnectorX, Trino and Doctrine ORM and maintains projects like schema-registry-gitops and DesignPatternsPHP, demonstrating a commitment to code quality and developer education. He’s equally comfortable coaching juniors and shipping production services, bringing practical CI/CD and observability lessons learned from roles at FLYERALARM and Mayflower. Based in Bavaria, Germany, he pairs pragmatic engineering with curiosity about cloud-native systems and enjoys exploring Go, Kotlin and TypeScript beyond day-to-day responsibilities.
11 years of coding experience
17 years of employment as a software developer
Informatikkaufmann Informatik, Informatikkaufmann Informatik at Berufsfachschule für IT-Berufe Würzburg
Stackoverflow
23reputation
212reached
0answers
1question
Github Skills (7)
design-patterns10
php10
object-oriented-programming10
apache-spark6
ceph6
amazon-s36
spark-structured-streaming6
Programming languages (15)
Github contributions (5)
DesignPatternsPHP/DesignPatternsPHP
Mar 2016 - Sep 2022
Sample code for several design patterns in PHP 8.x
Role in this project:
Back-end Developer
Back-end DeveloperContributions:21 reviews, 222 commits, 183 PRs in 6 years 6 months
Contributions summary:Dominik's commits primarily involve modifications to files related to design patterns in PHP. They updated files related to patterns such as Flyweight, Decorator, Mediator, Memento, NullObject, Observer, Strategy, TemplateMethod, and Visitor, indicating a focus on understanding and implementing these patterns. Code style and grammar fixes are also present, showing a commitment to code quality and readability. The user's contributions provide examples and improvements for the patterns, along with bug fixes.
php-8phpdesign-patternmodern-phpphpunit
domnikl/kotlin-coroutines-and-javafx-threads
Feb 2019 - Mar 2023
Sample code from my blog post
Contributions:9 PRs, 11 pushes, 15 branches in 4 years 1 month
spring-bootmy-blogblogpostcoroutineskotlin
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