Andrzej Dyjak
Founder, Managing Partner at Bezpieczny Kod
Warsaw, Masovian Voivodeship, Poland
Summary
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Senior🎓
Top SchoolAndrzej Dyjak is a security architect, founder, and strategic advisor with over two decades of hands-on experience across offensive testing and enterprise security architecture, now focused on embedding security and compliance into the SDLC. As founder of Bezpieczny Kod and co-founder of ABC DevSecOps, he designs Secure SDLC frameworks, builds DevSecOps practices, and scales threat modeling to fit real engineering workflows for highly regulated industries like finance and insurance. He has led organization-wide programs, trained thousands of engineers, and advised on audits and regulatory alignment—turning security from a gatekeeper into a business enabler. His background ranges from vulnerability research and vendor coordination to senior consulting and in-house security architecture, giving him a rare perspective on both attacker tactics and practical defenses. Based in Warsaw, he combines technical depth with pragmatic, developer-friendly processes that prioritize business goals and regulatory realities.
12 years of coding experience
9 years of employment as a software developer
B.Sc. Computer Science, B.Sc. Computer Science at Polish-Japanese Academy of Information Technology
English, Polish
Github Skills (41)
mach10
security10
system-calls10
exploit10
code-coverage10
fuzzing10
vulnerabilities10
xnu10
hhvm9
python9
ruby9
interpreter9
fuzzer9
php9
macos8
Programming languages (6)
Github contributions (5)
dyjakan/conference-talks
Jun 2018 - Feb 2020
Contributions:16 commits, 11 pushes, 1 branch in 1 year 8 months
dyjakan/osx-syscalls-list
Sep 2015 - Feb 2018
Fish for BSD system calls and MACH traps inside of XNU ✌️
Contributions:20 commits, 17 pushes, 1 branch in 2 years 5 months
bsdsystem-callsxnuappleosx
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