Sjoerd Talsma
Senior Software Engineer at Justitiële Informatiedienst
Rolde, Drenthe, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolSjoerd Talsma is a Senior Software Engineer and technical architect with over a decade of hands-on experience modernizing Java systems, coaching teams, and improving code quality—especially in legacy codebases. He blends deep Java expertise (Spring, Hibernate, JEE) with cloud-native practices (Kubernetes, Docker, AWS) and a pragmatic focus on refactoring, dependency untangling and test-driven delivery. Sjoerd has driven architecture and transformation work across public sector and healthcare projects, helping migrate monoliths to cloud-ready services and supporting nationwide public-health systems. A committed coach and communicator, he routinely translates complex business rules into maintainable technical designs and mentors junior developers. He is also an active open-source contributor—improving the OpenTracing Java API for thread-safety and compatibility—reflecting a long-standing commitment to open standards and tooling. Based in Rolde, Netherlands, he pairs academic grounding in CS with specialist training in functional programming, concurrency and cloud architecture.
10 years of coding experience
21 years of employment as a software developer
MSc. Informatica, MSc. Informatica at University of TwenteOpenbare Lagere School Wommels
Dutch, frisian, English, German
Stackoverflow
31reputation
2kreached
2answers
0questions
Github Skills (14)
javas10
opentracing10
api-design10
java10
thread-safety10
documentation10
concurrency9
testing9
javafx6
javadoc6
yfiles6
intellij-plugin6
intellij-idea6
gradle6
Programming languages (2)
Github contributions (5)
opentracing/opentracing-java
Dec 2016 - Oct 2018
OpenTracing API for Java. 🛑 This library is DEPRECATED! https://github.com/opentracing/specification/issues/163
Role in this project:
Back-end Developer
Back-end DeveloperContributions:14 commits, 18 PRs, 1 push in 1 year 10 months
Contributions summary:Sjoerd primarily focused on improving the API and internal implementations of the OpenTracing for Java library. Their work includes fixing potential `ClassCastException` issues, ensuring Java 6 compatibility, and enhancing the documentation, specifically focusing on the `SpanBuilder` class. Furthermore, the user contributed to the project by adding functionality to the Noop implementations, and moving GlobalTracer to the library, making it more thread-safe. They also addressed documentation errors and cleaned up the code base.
apispecificationtracingdistributed-tracingjava
opentracing-contrib/java-globaltracer
Jan 2017 - Feb 2020
(deprecated) Global OpenTracing Tracer resolution for Java
Contributions:2 releases, 1 review, 24 commits in 3 years 1 month
tracingresolutiontracerjavaopentracing
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