Hasan Besik
Senior DevOps Engineer at SumUp
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolHasan Besik is a Senior DevOps Engineer based in Berlin with 14 years of experience blending software development and site reliability practices to build resilient, cloud-native systems. His career spans fast-moving fintech and marketplace teams—including SumUp, OLX Group, and Bitwala—where he has focused on production reliability, automation, and GCP-centric infrastructure. Coming from a programming background, he comfortably bridges developer and SRE concerns, shipping tooling and pipelines as well as operational runbooks. He has repeatedly moved between pure development and SRE roles, which gives him practical empathy for developer workflows and incident response. Known for pragmatic automation rather than hype, he favors durable engineering solutions that reduce toil and scale with growth.
15 years of coding experience
7 years of employment as a software developer
BS, CSE, BS, CSE at Gazi Üniversitesi
English, Turkish, German
Github Skills (168)
devsecops10
vulnerability-management10
python10
security-automation10
security10
automation10
deep-learning10
browserify10
django10
journal10
desktop-application10
audio10
owasp10
data-visualization10
science10
Programming languages (18)
Github contributions (5)
hasantayyar/hasantayyar.net
Jan 2015 - May 2026
source and contents of my personal home page
Contributions:5 PRs, 323 pushes, 5 branches in 11 years 6 months
hasantayyar/restart-pods-cronjob
May 2019 - Mar 2020
Contributions:10 commits, 9 pushes, 1 branch in 11 months
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