Champion
Ionut Balosin
Raiffeisen Bank International
Ionuț is a software architect at Raiffeisen Bank International in Vienna, and an independent technical trainer, security champion, and blogger. He frequently speaks at major software development conferences and meetups worldwide, where he delivers presentations, training sessions, and workshops. With nearly 15 years of experience in software development across diverse business applications, he is deeply involved in creating production-ready systems. This hands-on experience informs the practical and effective topics of his presentations and training sessions.
He is also known as a performance guy particularly interested in Compilers. His previous work on performance benchmarking raised internal interest across a few teams from big companies like Twitter, OracleLabs, Azul, and IBM.
Outside of work, Ionut is passionate about traveling and playing the piano.
You can find more details about Ionuț, his training catalog, his talks, and his articles on ionutbalosin.com or you can follow him on Twitter, and LinkedIn.
He is also known as a performance guy particularly interested in Compilers. His previous work on performance benchmarking raised internal interest across a few teams from big companies like Twitter, OracleLabs, Azul, and IBM.
Outside of work, Ionut is passionate about traveling and playing the piano.
You can find more details about Ionuț, his training catalog, his talks, and his articles on ionutbalosin.com or you can follow him on Twitter, and LinkedIn.
Badges 11
Talks 8
- Voxxed Days Bucharest 2025
Unlocking the unknowns: Cryptography Essentials for Java Developers
- VoxxedDays Brussels
Create an eco-friendly world with Green Software Engineering
- Voxxed Days Bucharest 2023
JVM Performance Comparison
- Voxxed Days Bucharest 2023
Designing High-Performance, Scalable and Resilient Applications Workshop
- Voxxed Days Bucharest 2022
Techniques for a faster JVM start-up
- Devoxx Poland 2018
Architecting for performance. a top-down approach.
- Devoxx Poland 2018
Runtime vs. compile time (jit vs. aot) optimizations in java and c++
- Voxxed Days Vienna 2017
Java performance techniques The cost of HotSpot runtime optimizations










