Alexander Peslyak
Senior Principal Security Engineer at Openwall Project
Slovenia
Summary
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RockstarAlexander Peslyak is a seasoned security engineer and entrepreneur with 26 years of experience, currently serving as Senior Principal Security Engineer at CIQ while continuing to lead Openwall as its founder and CTO. Based in Slovenia, he has steered the Openwall Project since 1999, blending deep technical expertise in system hardening and security tooling with long-term open-source stewardship. His career reflects a rare combination of product-focused leadership and sustained hands-on engineering across vulnerability research, secure system design, and community-driven security projects. Colleagues know him for turning hard security problems into practical, deployable solutions and for building enduring open-source infrastructure rather than short-term prototypes.
26 years of coding experience
English, Russian, Slovenian
Github Skills (200)
cracking10
ubuntu10
passphrase10
password-recovery10
portable10
aes-gcm10
api10
checksum10
phash10
openid-connect10
pentesting10
upstream10
reference-implementation10
manjaro10
password-strength10
Programming languages (20)
Github contributions (5)
openwall/tcb
Nov 2001 - Jan 2021
Alternative password shadowing scheme
Contributions:34 reviews, 44 commits, 21 PRs in 19 years 5 months
schemetcbsecurityshadowpassword
ResistancePlatform/resistance-core
Nov 2018 - Feb 2021
Resistance Core
Contributions:6 releases, 91 commits, 17 PRs in 2 years 3 months
resistance
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