Serg Markovich

Serg Markovich

DevOps Engineer · Stuttgart, Germany
Linux · Docker · CI/CD · Automation Self-hosted infrastructure · Hetzner · Observability Public CV

I build and operate self-hosted infrastructure with a strong focus on Linux automation, reproducible deployments, troubleshooting, and production reliability. My work centers on practical DevOps, ownership, and public learning in the open.

About

I’m a DevOps Engineer based in Stuttgart, working on Linux systems, Docker-based platforms, CI/CD, monitoring, and self-hosted services. I like building things that are reproducible, observable, and boring in production — in the best possible way.

My background combines long-term infrastructure ownership, migration work, and hands-on delivery. I prefer systems that can be explained, maintained, and improved without hidden magic.

Core Stack

Linux & SystemsUbuntu, Debian, systemd, SSH, UFW
ContainersDocker, Docker Compose, K3s
AutomationAnsible, GitHub Actions, Bash, Terraform
MonitoringPrometheus, Grafana, Uptime Kuma, logging

Featured Projects

eigenstack

Self-hosted infrastructure platform on Hetzner for reproducible deployments, observability, and privacy-first services.

  • Terraform modules for reproducible Hetzner provisioning.
  • K3s cluster with GitHub Actions CI/CD pipeline.
  • Prometheus/Grafana monitoring with alerting.

Healthcare SaaS Platform

Self-hosted Supabase production stack on Hetzner with cloud-to-self-hosted migration and hardening work.

  • Migration from managed cloud to self-hosted infrastructure.
  • Realtime incident resolution and reliability work.
  • UFW, SSH hardening, secrets handling, and container isolation.

local-whisper-obsidian

Local voice-to-Obsidian pipeline using Faster Whisper, systemd, and Docker.

openwebui-systemd-stack

Self-hosted local AI stack with systemd service management, Docker networking, and desktop integration.

Knowledge Base

I maintain a public knowledge base with notes, case studies, and learning logs while I build. It’s the place where I document what I’m exploring and how I solve practical infrastructure problems.

Contact

Open to DevOps, Infrastructure, and Linux roles in Germany where I can work autonomously and close infrastructure tasks end to end.