Hold up, hold up!

This is my 'corporate' CV

It's full of buzzwords, metrics and LinkedIn-speak. If you want to see what I actually do, better check out my projects.

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JAROSLAV HRAZDERA

Infrastructure & DevOps Engineer

PROFESSIONAL SUMMARY

Infrastructure & DevOps Engineer with 6+ years of experience in IT infrastructure management and automation. Active open source contributor to Basecamp's Omarchy Linux distribution. Personally invited by David Heinemeier Hansson to collaborate on system-level projects.

Core Differentiators:

  • Open Source Contributor: 10+ merged pull requests to Basecamp's Omarchy project
  • DHH Collaboration: Direct invitation to join Omarchy-ISO development team
  • Unique Combination: Infrastructure expert with Python development skills
  • Hardware Enthusiast: Build custom 3D printers, experiment with IoT

TECHNICAL SKILLS

Cloud Native & Orchestration

  • Kubernetes: Container orchestration, Helm package management, ArgoCD GitOps
  • Containerization: Docker, Docker Compose, Container Registries
  • Monitoring: Prometheus, Grafana, Loki log aggregation
  • Infrastructure: Traefik Ingress Controller, Velero backup & disaster recovery
  • CI/CD: GitHub Actions, Automated Testing

Infrastructure & Security

  • Operating Systems: Linux (Arch/Omarchy daily driver), Ubuntu, Debian
  • Virtualization: Proxmox
  • Web Servers: Nginx, Apache, Traefik
  • Security: Trivy vulnerability scanning, Falco runtime security, Sealed Secrets
  • Network: RBAC, Network Policies, system administration
  • Version Control: Git, GitHub, GitLab

Development & Automation

  • Backend: Python, Django, Flask, FastAPI, Django REST Framework, SQL
  • Scripting: Bash, Python automation
  • Frontend: JavaScript, HTML5, CSS3, Responsive Design, Bootstrap
  • Database: PostgreSQL, Redis, MySQL, SQLite
  • Testing: Unit Testing, Integration Testing, pytest
  • Configuration: Infrastructure as Code, Configuration Management

PROFESSIONAL EXPERIENCE

IT Infrastructure Manager & Technical Specialist

Gridoff Solar s.r.o. | Brno, Czech Republic | September 2019 - Present

  • Manage and maintain complete IT infrastructure including servers, networks, and monitoring systems
  • Implemented Docker containerization for simplified application and service management
  • Developed Python scripts for infrastructure process automation, saving 15+ hours weekly
  • Designed and implemented API integrations for photovoltaic system monitoring
  • Reduced IT costs by 75% through strategic self-hosting and infrastructure optimization
  • Built and maintain company WordPress website and internal data processing tools

Technologies: Linux, Docker, Python automation, Bash, API integrations, Nginx, WordPress

IT Consultant & Infrastructure Administrator

Self-Employed | Brno, Czech Republic | November 2012 - August 2019

  • Managed web servers and hosting infrastructure for 15+ clients
  • Wrote Python scripts for report automation and system management
  • Implemented WordPress solutions with focus on performance and security
  • Basic PHP modifications and payment system integrations

Technologies: Linux server administration, WordPress, Python, PHP, MySQL, Apache, Nginx

Network Administrator

Airanet s.r.o. | Brno, Czech Republic | June 2007 - September 2012

  • Network infrastructure management and customer support
  • MikroTik router configuration and management automation through scripting
  • Created company website and customer portal

Technologies: Network protocols, MikroTik, Bash scripting, HTML/CSS, JavaScript

DEVELOPMENT PROJECTS

Omarchy Linux Distribution - Open Source Contributor

Technologies: Bash, Linux, Git GitHub Stars: 7.7k+ | Active Users: Thousands of developers worldwide

  • Active contributor to enterprise-scale Arch-based distribution by Basecamp
  • Personally invited by David Heinemeier Hansson to collaborate on ISO image development
  • Developed the main DNS configuration script for the entire distribution
  • 10+ merged pull requests with system component improvements

DevTracker - Project Management System

Technologies: Django, PostgreSQL, Docker, Alpine.js, GitHub Actions

  • Infrastructure automation tool and project management system
  • Complete application with authentication, authorization, and REST API
  • 95% test coverage, deployed with Docker Compose

Portfolio Platform

Technologies: Django, PostgreSQL, Docker, HTML5, CSS3, JavaScript, Redis Live Demo: jaroslav.tech

  • Bilingual portfolio demonstrating infrastructure and development projects
  • Practical showcase of DevOps and development skills
  • Containerized deployment with CI/CD

EDUCATION & CERTIFICATIONS

Python Backend Developer Certification

CodersLab IT Academy | January 2025 - August 2025

  • 169-hour intensive bootcamp - Python, Django, PostgreSQL
  • Focus on OOP, REST APIs, and Test-Driven Development

Electronics Engineering

Secondary School of Industrial Electronics | Prague | 2010

Additional Certifications

  • Electrical Engineering Professional Qualification
  • Photovoltaic Systems Electrician
  • Master of Brewing Arts (MBA)

LANGUAGES

  • Czech: Native Speaker
  • English: B1 (Proficient in technical documentation, active open source contributor)

ADDITIONAL

  • Driving License: B, C