Hasan Çalişir
Senior System Architect at PSAUXIT
Istanbul, Istanbul, Turkey
Summary
🤩
Rockstar🎓
Top SchoolHasan Çalişir is a Senior System Architect based in Istanbul with nine years of hands-on experience building and operating resilient Linux infrastructure and automation at scale. As co-founder of PSAUXIT and an official Gentoo developer/maintainer, he combines production-grade systems administration with open-source package stewardship across security and networking toolchains. He is fluent in Bash and Python, routinely converting legacy Korn shell libraries to portable Bash, automating middleware deployments (TIBCO, Apache, ELK) and orchestrating multi-wave data center migrations. His background spans HPC, high-availability services, load-balancing and penetration testing, giving him a rare blend of performance tuning, security-minded engineering, and operational pragmatism. Known for documentation and community collaboration, he maintains numerous Gentoo packages for security scanners and DNS tools, reflecting a commitment to reproducible, upstream-friendly solutions.
9 years of coding experience
6 years of employment as a software developer
Matematik, Matematik at Halit Armay Süper LisesiLisans Derecesi, İktisat, Lisans Derecesi, İktisat at Uludağ University-Economics
English
Github Skills (74)
uwsgi10
anti-bot10
python10
npp10
authentication10
security10
monitoring10
wordpress10
linux10
ids10
intrusion-detection10
ebuild10
gentoo10
openvas10
bsd10
Programming languages (9)
Github contributions (5)
psaux-it/woocommerce-aras-kargo
Jul 2021 - Feb 2023
Contributions:784 commits, 125 pushes in 1 year 7 months
psaux-it/psaux-it.github.io
Oct 2021 - Jun 2026
Contributions:155 pushes in 4 years 8 months
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