Tomasz Klim
Founder, CTO at PAYLOAD - offensive IT security magazine
Greater Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolTomasz Klim is a founder and CTO with over two decades of hands-on experience designing and scaling large web and infrastructure systems, and roughly 11–25 years focused on high-impact commercial roles. He built Poland’s largest e‑commerce payment platform (now PayU), led architecture at Allegro and Wikia, and repeatedly delivered scalable, automated operations and CI/CD solutions across multi-tenant environments. As an entrepreneur he now runs Polskie.AI and niche media/security ventures while founding the world’s first ransomware-focused recovery service, able to salvage data others deem irrecoverable. His career blends deep offensive and defensive security expertise—authoring law-enforcement tools and publishing Payload magazine—with practical ops skills from managing 100+ servers, massive MySQL clusters and large-scale backup/restore platforms. Notably, he holds the rare MIH Technologist Distinguished title (one of 11 worldwide) and has a long history of open-source collaboration dating back to ClamAV contributions. Based in Greater Poland, he pairs strategic product thinking with low-level reverse engineering and forensic craftsmanship that often turns “impossible” recoveries into real outcomes.
11 years of coding experience
19 years of employment as a software developer
Information Technology, Information Technology at West Pomeranian University of Technology in SzczecinMaster of Science Information Technology, Master of Science Information Technology at Poznan University of TechnologyEngineer Information Technology, Engineer Information Technology at Wyższa Szkoła Komunikacji i Zarządzania w Poznaniu
Stackoverflow
121reputation
395reached
1answer
0questions
Github Skills (58)
server-monitoring10
redhat10
puppet10
freebsd10
debian10
centos10
opensuse10
ubuntu10
rhel10
proxmox10
ansible10
oracle-linux10
netbsd10
devops10
server10
Programming languages (6)
Github contributions (5)
pisecurity/blinkt-persistence
Dec 2018 - Sep 2021
Contributions:4 commits, 3 pushes, 1 branch in 2 years 9 months
serverfarmer/sf-ip-monitor
Dec 2015 - Feb 2020
Contributions:20 pushes, 1 branch in 4 years 2 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.