Matyáš Koc
Technical Lead & Founder at pg-sec s.r.o.
Prague, Prague, Czechia
Summary
👤
Senior🎓
Top SchoolMatyáš Koc is a technical lead and founder with 11 years of hands-on experience in IT management, systems integration, and security-focused engineering. Based in Prague, he leads pg-sec and Technology & Security at the Student Trainee Center while studying information systems and development at VSE and FIT CTU. He combines operational leadership (former Head of IT at PREFIX) with practical engineering—contributing security improvements to the widely used PostfixAdmin open-source project. Comfortable across cloud, Azure ops, and applied security, he mentors students and teaches as an adjunct, bridging academic learning with real-world deployments. Colleagues know him for tightening security in legacy web tooling and for turning student projects into repeatable, production-ready practices.
11 years of coding experience
Bachelor (Bc.), Faculty of Information Technology, Bachelor (Bc.), Faculty of Information Technology at Czech Technical University in PragueGeneral field of study, General field of study at Grammar school OpatovInženýr (Ing.), Informační systémy a technologie | Vývoj informačních systémů, Inženýr (Ing.), Informační systémy a technologie | Vývoj informačních systémů at Vysoká škola ekonomická v PrazeInformation Technology, Information Technology at Secondary school of electrical engineering, Prague 10, V Úžlabině 320
English, Czech, German
Stackoverflow
155reputation
1kreached
1answer
5questions
Github Skills (12)
php10
mysql9
localization8
image6
htaccess6
html6
javascript6
apache6
environment-variables6
spring6
database6
java6
Programming languages (14)
Github contributions (5)
postfixadmin/postfixadmin
Jul 2017 - Sep 2017
PostfixAdmin - web based virtual user administration interface for Postfix mail servers
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits, 2 PRs, 2 comments in 1 month
Contributions summary:Matyáš primarily focused on enhancing the security and functionality of the PostfixAdmin web interface. Their contributions include implementing CSRF checks for both admin and user login pages, which significantly improved the application's security posture. They also updated language files for Czech localization, corrected typos, and added new translations. Additionally, the user refactored the logout handling mechanism in the admin and user login sections.
mailwebmailadministration-interfacemysqlpostfixadmin
Vilican/NoteSys
Mar 2015 - Mar 2017
Contributions:26 commits, 1 branch in 2 years
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