Onur O
Principal Application Security Engineer
Earth, Texas, United States
Summary
👤
Senior🎓
Top SchoolOnur O is a Principal Application Security Engineer with 11 years of experience building and hardening scalable distributed systems, primarily at Earnest, where he led application security, architected authentication/authorization, and performed regular penetration testing and incident response. He combines deep functional and object-oriented programming expertise—working in Scala, Java, Rust, TypeScript, Python, and Haskell—with hands-on offensive security skills to close the loop between development and remediation. His background as a platform and data engineer gives him a practical edge in designing secure services and data pipelines that improve customer experience and operational metrics. Notably, he has driven major reductions in support load through redesigned backend systems and led security programs including HackerOne triage, Cloudflare WAF hardening, and SAST/SCA pipeline integrations. A lifelong learner, he pairs low-level technical craftsmanship with threat modeling and security training to elevate engineering teams. Located in Texas, he brings a blend of software architecture, cloud-native operations, and applied security rigor to product-focused organizations.
11 years of coding experience
12 years of employment as a software developer
B.S., Computer Science, B.S., Computer Science at University of Oregon
English, Turkish
Github Skills (30)
mio10
dataflow9
portable9
xgboost9
java9
gradient9
scala9
machine-learning9
distributed-systems9
boosting9
functional-programming9
database9
scalable9
python8
dask8
Programming languages (4)
Github contributions (5)
onurzdg/mio-misc
Aug 2020 - Dec 2021
Channels and schedulers that trigger events on Mio
Contributions:19 commits, 22 PRs, 36 pushes in 1 year 3 months
golangeventstriggerschedulerschannels
meetearnest/scala-aws
Nov 2018 - Mar 2021
Contributions:6 PRs, 5 pushes, 6 branches in 2 years 5 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.