Özgür Hepsağ is a z/OS Systems Programmer with nine years of hands-on experience managing and upgrading enterprise mainframe environments, currently at Garanti BBVA Technology. He has led platform migrations and upgrades across Z14–Z16 hardware, worked on GDPS replication projects and cataloging strategies, and implemented automation via REXX and system tools. His background includes airline-specific ALCS operations and disaster-recovery builds, reflecting strong operational discipline in high-availability contexts. Educated in Computer Engineering with an international IT Management exchange, he combines formal engineering training with practical cross-sector internships and part-time development work. Özgür is steadily deepening his mainframe expertise and contributes to platform reliability through both tooling and hands-on systems programming.
9 years of coding experience
2 years of employment as a software developer
Minor, IT Management, 6.35/10, Minor, IT Management, 6.35/10 at Hanzehogeschool Groningen / Hanze University of Applied Sciences Groningen
Master's degree, Computer Engineering, Master's degree, Computer Engineering at Istanbul University-Cerrahpasa
Bachelor's degree, Computer Engineering, 3.47/4.00, Bachelor's degree, Computer Engineering, 3.47/4.00 at Dokuz Eylul University
Contributions:169 commits, 155 pushes in 1 year 4 months
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Özgür Hepsağ - Z OS Systems Programmer at Garanti BBVA Teknoloji