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Andris Rožkalns

Junior DevOps & Linux Engineer

I build and automate reliable Linux infrastructure, increasingly with AI agents in the loop. This page runs on it.

AI-augmented operations Automation Home Assistant
Latvian native English fluent German B1
Dortmund, Germany
[email protected]
+49 ••• •••• ••••
github.com/rozkalnsandris
Download PDF Smart-home demo

About

I am a self-taught Linux and DevOps engineer based in Dortmund, deliberately returning to IT after a long logistics career. My first hands-on experience came at school, where I administered Linux game servers over SSH and FTP, maintained PHP forums and built HTML websites.

Today I design, deploy and operate a production Raspberry Pi 5 homelab with Docker, monitoring, DNS, automation and AI services running around the clock. I am looking for a Junior DevOps or Linux Systems Administrator role and am available from January 2027.

Projects

01

Hermes self-hosted AI agent

Primary/fallback LLM routing, ChromaDB search, persistent memory, Telegram and Home Assistant integration.

PythonLLM routingChromaDBTelegramHome Assistantsystemd
02

Production Linux server stack

Raspberry Pi 5 with NVMe, Docker Compose, Nginx, AdGuard Home, TLS and Cloudflare Tunnel.

Raspberry Pi 5DockerNginxAdGuardTLSCloudflare
03

Home automation

Matter devices, custom Home Assistant dashboards, energy-cost tracking and reliable automations.

Home AssistantMatterMQTTEnergyYAML

Monitoring and observability

Prometheus, Grafana and exporters with live health and performance metrics.

PrometheusGrafanaNode ExporterLive metrics

Automated maintenance

Controlled APT and container updates, before/after evidence, Telegram reporting and availability checks.

BashAPTDockerTelegramHealth checks

Balcony irrigation

ESP32, 15 moisture sensors, relay pump, multiplexer, scheduling and safety limits.

ESP3215 sensorsRelay pumpMultiplexerSafety limits

Skills

Core
Linux administrationDockerDocker ComposeBashNginxDNSSSL/TLSPrometheusGrafanasystemdGit
Working knowledge
PythonREST APIsHome AssistantESP32/IoTYAML
Learning
AnsibleTerraformAWS Cloud
Foundations
NetworkingSSH/FTPPHP/IPBHTML/CSS

Experience

  1. Warehouse Employee

    Sonepar Deutschland · Dortmund
    • High-volume electrical wholesale order processing with scanner systems.
    • Cable preparation, forklift operation and rotating-shift logistics.
    • Process discipline and reliability directly transferable to IT operations.

  2. Painting Area Manager / Main Paint Sprayer

    SIA Koksne · Latvia
    • Managed daily production and warehouse operations, staff tasks and workflow.
    • Precision airless coating of wooden windows and doors.

  3. Warehouse / Shop Manager

    SIA Apavu Bode · Latvia
    • Managed receiving, stock organisation, staff coordination and daily operations.

  4. Early IT — self-taught

    Secondary school · Riga
    • Administered Linux Counter-Strike servers via SSH/FTP and troubleshot configurations.
    • Modified IPB forum templates/plugins and built HTML sites.
    LinuxSSH/FTPPHPHTML

Live homelab

Raspberry Pi 5 · self-hosted

Prometheus and Node Exporter · refreshed every 60 seconds

checking
—
30-day uptime
—
Containers
—
Load average
—
Days online
—
CPU usage
—
RAM used
—
Disk used
—
CPU temperature
—

Education and learning

The Linux Command Line

Self-study, applied daily in the homelab

Multimedia Communication

Rīga Stradiņš University · partial studies

Secondary Education

Riga 45th Secondary School · Latvia

[email protected]