Radim Vansa
Senior Software Engineer at Azul
Brno, Southeast, Czechia
Summary
🤩
Rockstar🎓
Top SchoolRadim Vansa is a Senior Software Engineer with 15 years of experience specializing in high-performance, concurrent and distributed systems. He has deep expertise in JBoss Data Grid/Infinispan and contributed practical improvements to core open-source projects like Infinispan, Hibernate ORM and JGroups, focusing on distribution, cache concurrency and thread-pool robustness. His background spans low-level driver development and GPGPU research (OpenCL hashing and sorting) through to production performance work in algorithmic trading and middleware at Red Hat. Currently at Azul, he blends systems-level thinking with pragmatic backend engineering to squeeze latency and scalability wins from complex platforms. Colleagues rely on him for tough synchronization and parallelization problems and for turning research-grade ideas into production-quality improvements.
15 years of coding experience
11 years of employment as a software developer
Matiční Gymnázium OstravaMgr. (MSc. equivalent), computer science - software systems - system architectures, Mgr. (MSc. equivalent), computer science - software systems - system architectures at Univerzita Karlova v Praze
Czech, English, German, Russian, Italian
Stackoverflow
5,786reputation
275kreached
155answers
58questions
caching
top-5%
Github Skills (35)
transaction10
caching10
object-mapping10
thread-pool10
distributed-systems10
java10
javas10
transactionscope10
junit10
hibernate10
orm10
infinispan10
jtest10
datagrid10
transaction-manager10
Programming languages (18)
Github contributions (5)
infinispan/infinispan
Jun 2013 - Nov 2018
Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.
Role in this project:
Backend Developer
Backend DeveloperContributions:328 commits, 261 PRs, 55 pushes in 5 years 6 months
Contributions summary:Radim implemented changes to the ReplicatedConsistentHashFactory, which resulted in more even ownership distribution. They also added tests to verify these changes and fixed a bug in the ReplicatedConsistentHash. The code changes focused on improving data grid platform functionality, with modifications to the core libraries related to distribution and consistency.
datagridinfinispannosqlinfinispan-serverkey-value-store
hibernate/hibernate-orm
Mar 2015 - Apr 2018
Idiomatic persistence for Java and relational databases
Role in this project:Back-end Developer
Back-end DeveloperContributions:108 commits, 57 PRs, 6 pushes in 3 years 1 month
Contributions summary:Radim primarily contributed to the Hibernate ORM project by implementing and improving the second-level cache functionality. Their commits involve changes to the Infinispan cache provider, addressing issues related to key handling, transaction management, and improving concurrency. The changes involve modifications to internal classes related to cache access strategies, command processing, and interceptors, and optimizing performance.
javarelational-databaseshibernateormjpa
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