Kostya Kortchinsky
Member Of Technical Staff at OpenAI
Seattle, Washington, United States
Summary
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Rockstar🎓
Top SchoolKostya Kortchinsky is a seasoned information security engineer with over a decade of experience finding high-impact vulnerabilities across major platforms and widely deployed systems. He has led security reviews and hardening efforts at Google, Microsoft, Databricks, and now OpenAI, authoring the Scudo hardened allocator and discovering multiple CVEs in the Apache ecosystem. His background spans code auditing, reverse engineering, exploit development, fuzzing, and shaping security guidelines for large-scale products. Kostya combines deep systems-level expertise (OS allocators, virtualization escapes, Windows core components) with practical product-focused security work in cloud and production environments. Based in Seattle, he is known for translating advanced research into concrete mitigations and for mentoring teams to adopt safer design patterns. A less obvious strength is his sustained history of presenting complex technical exploits accessibly at industry conferences, bridging research and operational security.
10 years of coding experience
19 years of employment as a software developer
Master's degree Computer Systems Networking and Telecommunications, Master's degree Computer Systems Networking and Telecommunications at National School of Computer Science and Applied Mathematics of Grenoble
English, French, Spanish
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (55)
apache-spark10
bitmap10
spark10
modular10
python10
bam10
llvm10
r10
big-data10
single-file10
hadoop10
apache10
jdbc10
analytics10
java10
Programming languages (5)
Github contributions (5)
llvm/llvm-project
Oct 2019 - Dec 2024
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Contributions:4 reviews, 81 pushes, 1 branch in 5 years 2 months
compilerstechnologiesclangsubmittoolchain
apache/spark
Feb 2024 - Dec 2024
Apache Spark - A unified analytics engine for large-scale data processing
Contributions:1 review, 1 comment in 10 months
analyticspythondata-processingsqlapache
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