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Aleksei Fokin

Infrastructure Engineer (DevOps)

Warsaw, Poland

About Me

I build infrastructure that teams can trust.

Over 10 years in IT, with the last 3 focused on Kubernetes — designing and deploying clusters, automating deployments, and building observability systems that catch problems before users do. My focus: reliable systems, clean automation, and infrastructure that scales without drama. I have migrated workloads across cloud providers, reduced deployment friction, and turned manual processes into self-service platforms.

Core Competencies

3+ Years Kubernetes

Production clusters across 3 cloud providers

99.9% Uptime

Built observability systems that catch issues early

Zero Downtime

Optimized infrastructure costs

Technical Stack

Containerization

  • Docker
  • Docker Compose
  • Kubernetes (GKE, EKS, AKS)
  • Bare-metal K8s

Cloud & Virtualization

  • AWS
  • GCP
  • Azure
  • Proxmox

Observability

  • Prometheus
  • Grafana
  • Tempo
  • Loki
  • OpenTelemetry

CI/CD & Workflow

  • GitLab CI
  • Jenkins
  • Apache Airflow
  • Prefect

Databases & Storage

  • PostgreSQL
  • ClickHouse
  • MongoDB
  • Rook-Ceph

Networks & Security

  • VPN (3x-ui, WireGuard)
  • Firewall
  • DNS
  • Network infrastructure

Experience

Senior DevOps Engineer

ZENPULSAR • Jan 2023 - Present
  • Architected and deployed production Kubernetes infrastructure serving the company's core data analytics platform
  • Built full observability stack (Prometheus, Grafana, Loki) providing real-time visibility into system health
  • Orchestrated cloud migration between providers with zero downtime, optimizing infrastructure costs
  • Deployed and scaled Apache Airflow to handle growing data pipeline workloads
  • Automated deployment processes using GitLab CI, reducing time for new features

IT Specialist

Crew Against Torture • Jan 2019 - Jan 2022
  • Implemented security infrastructure including VPN and firewall systems protecting sensitive data
  • Deployed and maintained VMWare and Proxmox virtualization platforms
  • Managed network infrastructure and provided technical support for distributed team

IT Specialist

Danone • Sep 2012 - Dec 2019
  • Delivered 2nd-line technical support for enterprise infrastructure at Fortune 500 company
  • Maintained critical IT infrastructure supporting manufacturing and office operations
  • Resolved complex technical issues, building foundation in enterprise systems

Certifications

Languages

Russian Native
English A1
Polish A2

Let's build something reliable together