Senior Linux Administrator, DevOps and Technical Lead with more than 25 years in production and enterprise environments. I work where predictable services, sensible automation and security without paper-only controls matter.
I look for the source of a problem rather than an easy workaround. I diagnose Linux and applications, examine CPU, IO, memory and networks, and deliver changes with a plan, maintenance window and documentation that teams can return to.
More than a quarter-century of Linux administration, from day-to-day operations to complex enterprise environments. I combine incident analysis, automation, hardening and change management so services rely less on improvisation.
From the operating system to the application layer, network and ITSM process. The work depends on concrete measurements, clear dependencies and restoring service efficiently.
Linux systems prepared for operations, change and diagnosis.
Symptoms, regressions and causes hidden between metrics and logs.
Virtualization, physical servers, storage and data center work.
Traffic segmentation, remote access and connection troubleshooting.
Change automation, pipelines and reducing exposure to vulnerabilities.
A personal environment for validating solutions before they are used.
Enterprise production, hosting and client services: from L1-L3 support and on-call work to automating more than 800 virtual machines. The experience covers responding to incidents and work that reduces the chance they return.
A quick map of the technologies behind day-to-day operations, automation and platform work.
Stability does not come from luck. It comes from automation, well-described changes and reaching the cause instead of masking symptoms.- Wojciech Błaszkowski
A working lab for testing automation, configurations and network scenarios before they appear in production.
Playbooks run through a controlled workflow with room for repeatable practice.
Test environments for validating configurations and operational scenarios.
Containers, configuration and upgrades tested in a working environment.
VLAN, access policy and segmentation testing on UDM, USW and UAP.
Computer Science - M.Sc. studies · 2011-2013
Computer Science - B.Eng. studies · 2009-2011
Let's discuss platform operations, security, patching or automation. A clear scope of work rather than a presentation about transformation.
Get in touchCall or message me on LinkedIn. We can discuss Linux operations, automation, security or a technical lead role.
Choose whichever channel works best - I reply to every message myself.