Linux Administration
Administration, troubleshooting, and maintenance of Linux-based systems
Linux · Automation · Infrastructure
Infrastructure
that just works.
Linux System Administrator and Automation Specialist
focused on reliable infrastructure, automation,
monitoring,
and maintainable systems
Linux
Ansible
Bash
VMware
Icinga
Zabbix
Apache
Git
Scroll to explore ↓
10+
Happy clients
100+
Projects completed
500+
Issues resolved
michal@infrastructure:~
$
whoami
michal-krzyzowski
$
role
Linux System Administrator
$
focus
automation / infrastructure
$
philosophy
automate repetitive work
document everything
keep systems reliable
01 — About
Technical work, without unnecessary complexity
I'm Michal — a Linux System Administrator and Automation Specialist focused on building and maintaining reliable infrastructure.
My work covers Linux administration, automation, virtualization, monitoring, deployment, and troubleshooting. I enjoy taking repetitive or fragile processes, and turning them into something predictable and maintainable.
Reliability
Predictable and maintainable infrastructure
Automation
Less repetition – fewer manual mistakes
Troubleshooting
Structured investigation of complex problems
Documentation
Infrastructure that doesn't depend on memory
02 — Expertise
Infrastructure is my playground
A practical toolkit built around Linux,
automation,
monitoring, and reliable operations
Automation
Automating repetitive infrastructure tasks and reducing manual work
Virtualization
Virtual infrastructure and VMware environments
Monitoring
Monitoring systems and identifying problems before they become incidents
Deployment
Repeatable and manageable deployment workflows
Web Infrastructure
Server-side infrastructure and web services
03 — Selected work
Things I've built
and worked on
A selection of public projects and examples.
Most of the professional infrastructure work remains
confidential.
001
Automated Backup System
A bash-based solution for automating server backup operations and reducing repetitive administrative work
002
Infrastructure Automation
Automation focused on making system configuration and administration more consistent and repeatable
003
Monitoring & Operations
Monitoring and operational work focused on visibility, troubleshooting and reliable system operations
004
Web Infrastructure
Server and web infrastructure work involving Linux, Apache, HAProxy, and related services
04 — Approach
How I approach infrastructure
01
Understand
Understand the system, constraints, and actual problem before changing anything
02
Automate
Remove unnecessary manual work and make repeatable tasks predictable
03
Monitor
Make systems observable so problems can be detected and investigated quickly
04
Document
Leave behind clear documentation so systems remain understandable and maintainable
05 — Experience
Experience & credentials
EXPERIENCE
Linux System Administration
Linux systems administration, infrastructure maintenance, troubleshooting, and operations
Infrastructure Automation
Automation of repetitive administrative tasks using Ansible, bash, and related tools
Monitoring & Troubleshooting
System monitoring, incident investigation, and operational problem solving
CERTIFICATIONS
RHCSA
Red Hat Certified System Administrator
06 — References
What people say
“
Michal's technical and troubleshooting skills, initiative and creativity were extremely valuable to our team.
“
Very good cooperation.
07 — Contact
Have an infrastructure problem? Let's talk.
Whether it's Linux administration, automation, monitoring, or an infrastructure problem that needs resolving, feel free to get in touch.