Headwind MDM
Contributor to the open-source Android device management project: Czech localization, bugfixes and feature additions across the mobile agent and its plugins. I also run a self-hosted Headwind server in production.
Infrastructure & systems engineer — Pilsen, CZ
I run the kind of environment where one person owns the whole stack — from the switch port to the backup restore test.
linux
Servers and virtualization, web and mail services, self-hosted applications in Docker. Patching, hardening, and day-to-day operations. Debian · Ubuntu · Proxmox · Docker · Exim · Dovecot · Apache · nginx
automation
Provisioning and configuration management, so a rebuild is a playbook run rather than a memory exercise. Ansible · Bash · Python
observability
Metrics and centralized log collection, with dashboards built around the questions that actually come up during an incident. Prometheus · Grafana · Loki · Promtail · rsyslog
storage
3-2-1 backup strategies with offsite replication and scheduled restore tests. TrueNAS · Synology · ZFS · PBS
network
Routing, segmentation and encrypted site-to-site links for small and mid-sized networks. MikroTik RouterOS · Ubiquiti · Cisco (basics) · WireGuard · DoH
endpoints
Windows device management: enrollment, compliance and configuration policies, single sign-on. Microsoft Intune · Entra ID · Autopilot
data
ETL pipelines pulling Czech public-sector open data registries into MySQL, with scheduled downloads, schema handling and change detection. Apache Hop · Pentaho · MySQL
local-llm
Self-hosted inference and LoRA fine-tuning on consumer hardware, wired into everyday development work. Ollama · Unsloth · ROCm · FastAPI
Contributor to the open-source Android device management project: Czech localization, bugfixes and feature additions across the mobile agent and its plugins. I also run a self-hosted Headwind server in production.
Pollen forecast data from the Czech Hydrometeorological Institute, and a Creality V3 KE printer integration.
Took over an existing production site for a haulage company, rebuilt it as a static site on Cloudflare Pages and handled the DNS cutover without downtime.
Hand-written site for a decorating business, later ported to the client's preferred platform.