Who i am
I’m Adrian, aka polar-node. Linux Systems Administrator & Cloud Specialist, based in Almería, Spain.
I’ve been working with computers since building my first one in the 1990s. In 2010 I started building and repairing computers for others too, working as a technician and helpdesk before moving into systems administration. I spent almost 3 years formally in a Linux Systems Administrator & Cloud Specialist role, and I currently work independently, doing freelance IT and sysadmin work: infrastructure, automation, monitoring, and troubleshooting for clients and my own projects.
What I work with
Virtualization Daily driver: Proxmox, VMware
Exploring: XCP-ng
Monitoring Daily driver: Zabbix, CheckMK Also use: Prometheus, Grafana
Exploring: Netdata, OpenTelemetry, DataDog
Backups Daily driver: Bacula, Veeam
Automation Daily driver: Ansible
Want to learn: Puppet, Chef
Cloud Daily driver: AWS
Also use: GCP, Azure
IaC Still learning: CloudFormation, Terraform (OpenTofu)
How I approach infrastructure
Understand first. Improve second. Automate whenever possible.
I look for the real cause instead of a quick patch, and I document what I learn so the next person, often future me, doesn’t have to solve it twice.
Certifications
- AWS Certified Cloud Practitioner (next: AWS CloudOps or similar)
- Cambridge C1 Advanced (CAE)
- Currently studying for LPIC-1, RHCSA next
Elsewhere
- GitHub: polar-node
- LinkedIn: radu-adrian-pintea
- Email: polar-node@pm.me
Curious how I got here? From a reel-to-reel tape machine to Linux infrastructure.