Linux Infrastructure
& Security
Senior systems engineer with 20+ years experience. Server administration, automation, monitoring, and security. Remote worldwide.
Services
Linux Administration
Server setup, hardening, migrations, troubleshooting. Debian, Ubuntu, RHEL, Alpine.
Automation & IaC
Infrastructure as code, configuration management, deployment pipelines.
Monitoring & Observability
Metrics, alerting, dashboards, log analysis. Know what's happening before users do.
Security & Hardening
Vulnerability assessments, penetration testing, server hardening, incident response.
Networking & Load Balancing
HAProxy, Nginx, DNS, VPNs, high-availability configurations.
Storage & Backup
ZFS, backup strategies, disaster recovery planning, data replication.
About
Systems engineer with two decades of production Linux experience.
Started in the early 2000s building server infrastructure from bare metal. Evolved through enterprise environments managing fleets of hundreds of servers, then to independent consulting for international clients.
Specialties include high-availability architectures, automation that eliminates manual toil, monitoring systems that catch problems before users notice, and security assessments that find real vulnerabilities.
Native-level fluency in English and Nordic languages (Finnish, Swedish, Norwegian) enables effective collaboration with international teams.
Experience
Independent Infrastructure Consultant
2019 – PresentRemote infrastructure design, automation, and reliability engineering.
- Multi-site Proxmox infrastructure with automated failover (99.9% uptime)
- Comprehensive monitoring stacks reducing mean time to detection to under 5 minutes
- Ansible automation for provisioning, configuration management, and compliance
- High-density compute infrastructure management (custom monitoring, power management)
IT Infrastructure Manager
2010 – 2013Led infrastructure operations across multiple regional offices.
- Managed 100+ Linux servers, network equipment, and security infrastructure
- Disaster recovery implementation achieving RPO < 1 hour, RTO < 4 hours
- Reduced server provisioning from 2 days to 30 minutes via Ansible
Senior Linux Systems Engineer
2006 – 2010Enterprise Linux infrastructure for banking and telecommunications.
- Infrastructure supporting 10,000+ concurrent users
- 40% reduction in server resource utilization through optimization
- Centralized authentication and configuration management for 200+ servers
Systems Administrator
2002 – 2006Early career building Linux infrastructure from bare metal for SMEs.
- Hands-on server deployment: mail, web, DNS, file servers
- Early automation with Python and Bash