Alexander Extim

Alexander Extim with a mountain bike by a river in the mountains

About

With over 18 years in IT, including 5 years focused on DevOps, I'm passionate about creating innovative solutions. I specialize in designing and automating scalable, secure infrastructures on bare metal and cloud platforms like AWS, GCP, and Azure.

I excel in Kubernetes, CI/CD pipelines, and automation tools such as Ansible and Terraform. My networking skills cover DNS, VPNs, and load balancers, with a strong commitment to security and monitoring. Experienced in Agile teams, I deliver reliable, high-availability systems and enjoy problem-solving challenges.

Experience

  • Cloud platforms: AWS, GCP, Azure (basic administration and IAM)
  • Bare-metal infrastructure: Proxmox, VMware, libvirt
  • Containerization and orchestration: Docker, Docker Swarm, Kubernetes (security, scaling, performance tuning)
  • Infrastructure as code and automation: Terraform, Ansible, Helm
  • CI/CD: GitLab CI/CD, Jenkins, Argo CD, GitHub Actions
  • Networking: OSPF, VPC, STP, QoS, IPsec, DNS, VPNs, load balancers, HAProxy, Nginx, Traefik; Cisco, Juniper and MikroTik routing, switching and firewalls
  • Monitoring and logging: Prometheus, Grafana, ELK Stack, Graylog, Splunk, New Relic, Azure Monitor
  • Scripting and programming: Bash, Python, Go, PowerShell (basic)
  • Databases: PostgreSQL, MySQL, MongoDB, ClickHouse, Redis, HBase
  • Security and compliance: HashiCorp Vault, Keycloak, Trivy, SonarQube, SOPS, secure configuration practices
  • Server management: Windows Server, Linux

Interests: tech, programming, AI, gym