Jorg Heymans
Lead Application Architect
Brussels Metropolitan Area Belgium
Summary
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RockstarJorg Heymans is a Lead Application Architect based in Brussels with over 12 years of experience designing and delivering enterprise systems across European institutions. He combines hands-on backend and DevOps skills with architectural leadership, currently shaping application strategy at the European Anti-Fraud Office after long tenure as a system architect for the European Commission. An active open-source contributor, Jorg has improved distributed tracing and JVM microservice tooling in prominent projects like Zipkin, Brave and Axon Framework, showing deep expertise in observability, logging and resilience. Colleagues know him as a pragmatic problem-solver who closes issues and tightens error handling, often surfacing subtle fixes that prevent production pitfalls.
12 years of coding experience
22 years of employment as a software developer
Stackoverflow
15reputation
644reached
0answers
2questions
Github Skills (27)
cqrs10
tracer10
back-end-development10
distributed-tracing10
instrumentation10
event-sourcing10
zipkin10
java10
javas10
exception-handling10
axon-framework10
trace10
domain-driven-design10
amazon-elasticsearch9
apidoc9
Programming languages (17)
Github contributions (5)
openzipkin/zipkin
Apr 2018 - Nov 2020
Zipkin is a distributed tracing system
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:8 reviews, 41 commits, 47 PRs in 2 years 7 months
Contributions summary:Jorg primarily focused on improving the functionality and robustness of the Zipkin distributed tracing system. Their work includes enhancements to annotation query parsing, moving server-based code to slf4j-api, and addressing issues related to Kafka collector configuration and deprecation warnings in Elasticsearch. They also implemented a fix for trace requests. The commits demonstrate a strong understanding of back-end development, logging, and potentially deployment aspects of the Zipkin project.
opentelemetrydistributedtracingopenzipkinobservability
openzipkin/brave
Jun 2017 - Jul 2020
Java distributed tracing implementation compatible with Zipkin backend services.
Role in this project:Backend Developer
Backend DeveloperContributions:2 reviews, 19 commits, 16 PRs in 3 years 1 month
Contributions summary:Jorg primarily contributed to the Java-based distributed tracing implementation. Their work involved adding configuration options to the `p6spy` instrumentation, specifically including parameter values in SQL queries. They also addressed potential null pointer exceptions within the instrumentation framework and implemented gRPC client and server parsers. The user's changes demonstrate a focus on improving the framework's functionality, error handling, and integration with gRPC.
distributedinstrumentationbackend-servicestracingopenzipkin
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