Mateusz Mojsiejuk
Senior Devops Engineer at VALIDIO
Greater Stockholm Metropolitan Area Sweden
Summary
👤
Senior🎓
Top SchoolMateusz Mojsiejuk is a Senior DevOps Engineer with 14 years of hands-on experience building and securing hybrid cloud infrastructures across AWS and GCP from Stockholm. He specializes in cloud security, automation and lifecycle management using Terraform, Ansible and Python, and has driven company-wide solutions for VPN, multi-account DNS, PCI/DSS and GDPR compliance. At companies including iZettle/PayPal, Trustly and VALIDIO he delivered scalable, auditable automation—often open-sourcing tooling like the company-wide VPN service. Comfortable across Linux server management, networking (VyOS, IPSec, OpenVPN) and observability stacks, he blends deep operations expertise with development fluency. Colleagues rely on him for pragmatic security audits and repeatable infrastructure pipelines that reduce risk and speed delivery. Off the clock he signals a developer’s caffeine-fueled curiosity, pairing practical rigor with a taste for playful engineering culture.
14 years of coding experience
15 years of employment as a software developer
Bachelor, Computer Science, Bachelor, Computer Science at Stockholms universitet
English, Swedish, Polish
Stackoverflow
274reputation
45kreached
6answers
0questions
Github Skills (125)
high-availability10
spotify-api10
kubespray10
pcie10
spotify10
k8s10
client-library10
bare-metal10
kubernetes-cluster10
linux10
keyboard10
helm10
ansible10
rust10
kubernetes10
Programming languages (11)
Github contributions (5)
tomodachi/raspbian-kodi
Mar 2017 - Feb 2020
automatically installs and configures Kodi on top of vanilla raspbian
Contributions:8 PRs, 8 pushes, 7 branches in 2 years 11 months
raspbiandebian-linuxphp82on-topdebian
tomodachi/ops-tools
Aug 2019 - Mar 2025
A collection of programs for ops related tasks
Contributions:4 PRs, 16 pushes, 4 branches in 5 years 8 months
opspythonprogramsawsfreeipa
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