Alex Tatulchenkov
Technical Lead at Frelance
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolAlex Tatulchenkov is a Technical Lead and Enterprise Web Defender with 12 years of hands-on experience securing complex web applications and embedding AppSec into fast-moving SDLCs. He has a track record of reducing critical and high-severity vulnerabilities through threat modeling, advanced pentesting, and automation of SAST/DAST and WAF controls within CI/CD pipelines. A former CTO and co-founder, he pairs leadership and mentorship with deep practical experience in PHP, custom frameworks and product-focused engineering from freelance and startup work. Based in Krakow, he brings a pragmatic DevSecOps mindset—balancing developer velocity and rigorous security—and has repeatedly translated security findings into measurable business continuity improvements. An often-overlooked strength is his background in low-level process engineering, which informs his methodical approach to root-cause analysis and resilient architecture.
11 years of coding experience
11 years of employment as a software developer
Технология электрохимических производств, Технология электрохимических производств at Белорусский Государственный Технологический Университет
Английский, Белорусский, Русский
Github Skills (98)
guzzle9
php9
truffle9
extensible8
telegram8
curl8
http-header8
semgrep7
messenger7
chat7
http-client7
smart-contracts7
solidity7
static-analysis7
psr-77
Programming languages (11)
Github contributions (5)
dzentota/TypeDD
Oct 2020 - May 2021
Contributions:8 commits, 11 pushes, 1 branch in 6 months
dzentota/regression
Dec 2021 - Jan 2025
Regression testing micro framework
Contributions:20 releases, 6 reviews, 16 PRs in 3 years 1 month
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