Mirosław Lach
CTO, System Administrator
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolMirosław Lach is a seasoned system administrator and CTO with 13+ years of hands-on experience designing, modernizing and running resilient IT infrastructures, primarily on GNU/Linux and open source stacks. He has led architecture and operations at companies from ecommerce and gaming to industrial distributors, implementing HA networking, BGP multihoming, SAN clustering, CI pipelines and self-hosted collaboration tools. Comfortable toggling between strategic CTO responsibilities and low-level sysadmin work, he also has proven experience rebuilding legacy systems and automating administration with custom scripts and tooling. Trained as an M.Sc. engineer from the Military University of Technology in Warsaw, he brings disciplined, security-conscious practice from his academic background into pragmatic production operations. A frequent freelancer and long-term technical advisor, he is particularly adept at translating business needs into reliable, auditable infrastructure—often rescuing and modernizing systems that others deemed obsolete.
13 years of coding experience
19 years of employment as a software developer
Warsaw University of TechnologyM.Sc. Eng., M.Sc. Eng. at Wojskowa Akademia Techniczna w Warszawie
English
Github Skills (94)
android10
mozilla10
esp826610
firmware9
docker-container9
automation9
esp329
docker-image9
share-files9
xiaomi8
controlling8
dockerfile8
home-assistant8
php8
multiple-languages7
Programming languages (8)
Github contributions (5)
sq5gvm/zabbix
Jun 2019 - Feb 2020
zabbix scripts
Contributions:4 pushes in 8 months
shellscriptzabbixbash
sq5gvm/NextCloud-Shifts
Sep 2022 - May 2023
Contributions:2 pushes in 7 months
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