Igor Ostriz
Chief Technology Officer at Vionis d.o.o.
Town of Zaprešić, Croatia
Summary
👤
Senior🎓
Top SchoolIgor Ostriz is a seasoned technology leader and CTO with 20+ years of software development, architecture, and consultancy, known for blending hands-on engineering with strategic product leadership. He is currently Chief Technology Officer at One28 (since May 2025) and CEO of Vionis d.o.o. (since 2019), guiding technical direction and business growth across multiple ventures. A mobile and web specialist with a strong Flutter track record (20+ projects) and deep iOS experience (Obj-C/Swift), he has delivered scalable cross-platform solutions for diverse domains. He freelanced at Toptal on 50+ projects, bringing broad domain experience from content delivery platforms to AI-focused initiatives and tackling complex architecture and integration challenges. Based in Croatia's Zaprešić and holding a Master of Computer Science from FER Zagreb, he has a demonstrated ability to solve multi-device ecosystem problems and drive AI-enabled product development.
9 years of coding experience
23 years of employment as a software developer
Master of Computer Science, Master of Computer Science at Faculty of Electrical Engineering and Computing (FER), University of Zagreb
Stackoverflow
88reputation
9kreached
3answers
3questions
Github Skills (77)
instagram10
windows10
carthage10
swift10
xcode10
uicollectionview10
android10
macos10
objective-c10
ios10
cocoapods10
dart9
desktop9
material-design9
cross-platform9
Programming languages (4)
Github contributions (5)
mateflick/IOS
Sep 2018 - Dec 2018
Contributions:9 pushes, 1 comment, 1 issue in 3 months
mateflick/Nodejs
Sep 2018 - Oct 2018
Contributions:4 pushes in 23 days
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