Martin Štefanko
Quarkus Core Engineer At IBM at BrnoJUG
Brno, South Moravia, Czechia
Summary
🤩
Rockstar🎓
Top SchoolMartin Štefanko is a seasoned Java and cloud-native engineer with 11+ years of experience building and maintaining core middleware like WildFly, JBoss EAP and Quarkus, now working as a Quarkus Core Engineer at IBM. He leads the MicroProfile Health specification, has driven health and LRA (saga-style transactions) integrations across Quarkus and SmallRye, and is the author of Quarkus in Action. An active open-source contributor and release/test automation practitioner, his commits span WildFly core, RESTEasy, Narayana and Quarkus quickstarts—often fixing subtle security, deployment and health-check issues. Based in Brno, he also runs the Brno Java User Group, teaches university lectures on Quarkus and Docker/Kubernetes, and combines deep protocol-level server work with developer-facing tooling and documentation.
11 years of coding experience
9 years of employment as a software developer
Master’s Degree, Computer Systems, Master’s Degree, Computer Systems at Masaryk University BrnoHigh School, High School at John Adam Rayman grammar school, Prešov
English, Czech, Slovak
Stackoverflow
474reputation
19kreached
18answers
0questions
Github Skills (45)
api-rest10
jboss-eap10
application-server10
back-end-development10
api-design10
restful-api10
testing10
appserver10
microprofile10
java10
security10
javas10
junit10
arq10
rest-client10
Programming languages (17)
Github contributions (5)
jbosstm/narayana
Feb 2019 - Nov 2022
The codebase for the narayana project
Role in this project:
Back-end Developer
Back-end DeveloperContributions:155 reviews, 64 commits, 95 PRs in 3 years 9 months
Contributions summary:Martin primarily focused on refactoring the codebase to remove dependencies and upgrade to the latest LRA specification versions. They removed dependencies on LRA clients, particularly from the LRA coordinator. Additionally, the user modified the LRA Coordinator, and related resources, updating it to the latest LRA specification and making necessary changes to accommodate the changes. They also addressed bugs and implemented tests within the project.
deep-learningcodebasepythonmachine-learning
jboss-developer/jboss-eap-quickstarts
Aug 2017 - Aug 2020
The quickstarts demonstrate JBoss EAP, Jakarta EE 10 and a few additional technologies. They provide small, specific, working examples that can be used as a reference for your own project.
Role in this project:Back-end Developer & QA Engineer / Test Automation Engineer
Back-end Developer & QA Engineer / Test Automation EngineerContributions:38 commits in 3 years
Contributions summary:Martin primarily contributes to testing and quality assurance within the JBoss EAP quickstarts repository. They add and modify integration tests, predominantly focusing on MicroProfile technologies, specifically metrics, health, OpenTracing, REST Client, Config, and JWT. The commits involve writing and modifying Java-based Arquillian tests to validate the functionality of quickstarts. The user is actively engaged in ensuring the correct implementation and behavior of various MicroProfile specifications within the JBoss EAP environment.
jboss-eap
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