Skills & Expertise

Technology stack & proficiency

Organised by domain — from Linux administration to cloud infrastructure and security.

Skill Matrix

Linux Administration

  • Linux system administration 95%
  • Bash scripting 92%
  • Systemd & performance tuning 88%
  • Package & patch management 85%

Windows Server Administration

  • Windows Server 2019/2022 70%
  • Active Directory 65%
  • PowerShell automation 68%

DevOps & Automation

  • Ansible 88%
  • Terraform / OpenTofu 85%
  • Infrastructure as Code 88%
  • Configuration management 86%

CI/CD

  • GitHub Actions 90%
  • GitLab CI 82%
  • Jenkins 78%
  • Argo CD 87%

Docker & Containerization

  • Docker 92%
  • Container security 82%
  • Registry management (Harbor) 80%

Kubernetes

  • Cluster operations 90%
  • Helm 88%
  • GitOps delivery 87%
  • Troubleshooting & debugging 89%

Cloud Infrastructure

  • AWS 82%
  • Hetzner / bare-metal cloud 85%
  • Multi-cloud networking 75%

Virtualization

  • KVM / Proxmox 86%
  • VMware vSphere 74%
  • QEMU image pipelines 78%

Networking

  • TCP/IP & DNS 88%
  • VLANs & routing 80%
  • BGP basics 72%
  • Firewalls (nftables/iptables) 84%

Monitoring

  • Prometheus 87%
  • Grafana 88%
  • Loki & Tempo 80%
  • Alerting & SLOs 85%

Security

  • CIS Benchmarks 83%
  • SELinux 78%
  • Secrets management 82%
  • Vulnerability scanning 80%

Hosting Infrastructure

  • cPanel / WHM 85%
  • Nginx & LEMP 90%
  • Mail servers 75%
  • SSL & PKI 84%