Hello, I'm Jarek.
$/~ Infrastructure, DevOps Engineer &&
Automation Specialist_
I build and manage production-grade IT infrastructure with expertise in Linux server administration, Docker containerization, and Python automation. With 6+ years of hands-on experience, I specialize in creating reliable, scalable systems that solve real-world infrastructure challenges. Currently contributing to Basecamp's Omarchy Linux distribution, personally invited by David Heinemeier Hansson.
About Me
I am an Infrastructure & DevOps Engineer from the Czech Republic, driven by a passion for transforming complex infrastructure challenges into elegant automated solutions. My focus is on building and managing robust IT systems, with deep expertise in Linux server administration, containerization, and network management.
I leverage Python for infrastructure automation and tooling, with practical experience in frameworks like Django and Flask for building internal systems and monitoring tools. My choice of Omarchy Linux distribution as a daily driver reflects my philosophy: I thrive in efficient, terminal-centric environments that give me full control over my workflow and infrastructure.
What sets me apart is my unique combination of infrastructure expertise and software development skills. I don't just manage systems—I automate them. I don't just deploy applications—I architect the infrastructure that makes them reliable and scalable.
My Skillset
Cloud Native & Orchestration
- Kubernetes & Container Orchestration
- Helm & ArgoCD (GitOps)
- Docker & Docker Compose
- Traefik Ingress Controller
- Prometheus, Grafana & Loki
- Velero Backup & DR
- CI/CD (GitHub Actions)
- Container Registries
- System Monitoring & Logging
Infrastructure & Security
- Linux (Arch/Omarchy daily driver)
- Proxmox Virtualization
- Server Management & Self-hosting
- Network Administration
- Trivy Security Scanning
- Falco Runtime Security
- Sealed Secrets Management
- RBAC & Network Policies
- Nginx & Apache Web Servers
Development & Automation
- Python (Django, Flask, FastAPI)
- Bash Scripting & Automation
- PostgreSQL & Redis
- Git & GitHub
- HTML5, CSS3, JavaScript
- REST APIs
- Testing (pytest)
- Configuration Management
- Infrastructure as Code
Projects
The Portfolio Meta-Project
What better showcases my infrastructure skills than the very platform presenting them? This entire website, from infrastructure to deployment, is my project. It runs on my self-hosted server using Proxmox virtualization, which I personally manage, and demonstrates the practical use of technologies like Python, Django, Docker, and CI/CD to build a complete, production-grade solution. The server infrastructure, monitoring, backups, and deployment pipeline are all designed and maintained by me.
Technologies: Django, PostgreSQL, Docker, CI/CD, Proxmox, Traefik, Self-hosting
Omarchy Linux Distribution - Open Source Contributor
Active contributor to Basecamp's enterprise-grade Arch-based Linux distribution. Personally invited by David Heinemeier Hansson to join the development team. Developed critical system components including the main DNS configuration script and boot process improvements. 10+ merged pull requests in a project used by thousands of developers worldwide.
Technologies: Bash, Linux, systemd, Git, DNS configuration
DevTracker - Infrastructure Automation & Project Management
A comprehensive Django-based system for infrastructure automation and project management with time tracking, task management, and progress monitoring. Features user authentication, project ownership, and a powerful admin interface. Built with infrastructure reliability in mind—comprehensive testing (95% coverage), Docker containerization, and automated deployment pipeline.
Technologies: Django, PostgreSQL, pytest, Docker, GitHub Actions
Lantern - Network Interface Manager
A lightweight TUI (Terminal User Interface) for managing network interfaces on Linux, built in Rust. Supports WiFi, VPN, and IPv4/IPv6 configurations through systemd-networkd. This systems-level project showcases my ability to work across the entire technology stack—from low-level networking and systems programming to high-level infrastructure automation.
Technologies: Rust, Ratatui, systemd-networkd, Linux networking
Contact Me
I'm currently open to Infrastructure, DevOps, and SRE opportunities. Feel free to reach out!
jarek@jaroslav.tech