Krzysztof Pranczk
Senior Application Security Engineer
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolKrzysztof Pranczk is a Senior Application Security Engineer with 11 years of experience blending software engineering and security research, currently shaping application security at Revolut. He has progressed from hands-on web application development and Python roles to consultancy and in-house security positions at MWR/F-Secure and Alior Bank, giving him a strong mix of offensive security, risk remediation, and secure development expertise. Krzysztof publishes technical security content (devsec-blog.com) and maintains an active research mindset that informs pragmatic, developer-friendly security controls. Based in Warsaw, he pairs academic grounding from Warsaw University of Technology with real-world incident and threat assessment experience across fintech and enterprise domains. Colleagues rely on him to translate complex vulnerabilities into actionable fixes and to embed security early in the development lifecycle.
11 years of coding experience
7 years of employment as a software developer
Bachelor's degree, Information Technology, Bachelor's degree, Information Technology at Warsaw University of Technology
Polish, English
Github Skills (15)
semgrep8
sast7
java7
python7
javascript7
static-analysis7
typescript6
ruby6
linter5
static-code-analysis5
go4
tower2
nodejs1
tor1
ansible1
Programming languages (3)
Github contributions (5)
theowni/Damn-Vulnerable-RESTaurant-API-Game
Mar 2024 - Feb 2025
Damn Vulnerable Restaurant is an intentionally vulnerable Web API game for learning and training purposes dedicated to developers, ethical hackers and security engineers.
Contributions:27 PRs, 71 pushes, 20 branches in 11 months
theowni/Android-MaliciousAccessibilityServiceAppsDetector
May 2021 - May 2021
The application is a PoC that helps in identifying modern bankers, potentially malicious and remote controlling applications abusing Android AccessibilityService.
Contributions:2 releases, 15 commits, 1 PR in 5 days
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