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.

Badges 11

Talks 8

  1. Voxxed Days Bucharest 2025

    Unlocking the unknowns: Cryptography Essentials for Java Developers

    March 2025Architecture

  2. VoxxedDays Brussels

    Create an eco-friendly world with Green Software Engineering

    May 2023Mind the Geek

  3. Voxxed Days Bucharest 2023

    JVM Performance Comparison

    March 2023java

  4. Voxxed Days Bucharest 2023

    Designing High-Performance, Scalable and Resilient Applications Workshop

    March 2023Architecture

  5. Voxxed Days Bucharest 2022

    Techniques for a faster JVM start-up

    March 2022Java Language

  6. Devoxx Poland 2018

    Architecting for performance. a top-down approach.

    June 2018Architecture▶ Watch

  7. Devoxx Poland 2018

    Runtime vs. compile time (jit vs. aot) optimizations in java and c++

    June 2018lang▶ Watch

  8. Voxxed Days Vienna 2017

    Java performance techniques The cost of HotSpot runtime optimizations

    March 2017Java Language▶ Watch