Alexander Gusarov
DevOps / Infrastructure Engineer

DevOps engineer with hands-on production experience: Kubernetes, 750+ Linux servers via Ansible, IaC on AWS, and production monitoring from scratch. Dev background (14 years) means I understand both sides of the pipeline.

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CONTACTS
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Email
GitHub
Telegram
Upwork
LinkedIn
Habr

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KEY ACHIEVEMENTS
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• Automated infrastructure for 750+ Linux servers using Ansible and Kubernetes, reducing manual operations by ~80%
• Reduced deployment time from 8 minutes to 2 minutes (−75%) through CI/CD pipeline optimization
• Reduced MTTR by 60% through centralized monitoring and alerting
• Reduced Docker image size from 500MB to 200MB improving build and deployment performance
• Replaced manual infrastructure health checks with automated service monitoring (Go + PostgreSQL)
• Responded to production incidents including SSH attacks with 1.5–2 minute SLA response

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SKILLS
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Orchestration: Kubernetes, Helm, Docker
IaC & Automation: Terraform, Ansible
CI/CD: GitLab CI, GitHub Actions, Jenkins
Observability: Prometheus, VictoriaMetrics, Grafana, Loki, Alertmanager, CloudWatch
Cloud: AWS — EC2, S3, RDS, VPC, IAM, ALB
Databases: PostgreSQL, ClickHouse, MySQL, Redis, MongoDB
Programming: Go, Python, Bash
Platforms: Linux, AWS, Yandex Cloud, Selectel
Languages (spoken): Russian — Native, English — B2

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EXPERIENCE
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InfoScale — DevOps Engineer
Dec 2024 — Jan 2026
  • Monitored and maintained 750+ Linux servers (Selectel VPS and bare metal) — network interfaces, ports, access management, and incident response
  • Managed Kubernetes clusters on Yandex Cloud and self-hosted (GitLab, Matrix, Keycloak, Vault); wrote and maintained Helm charts
  • Built Terraform infrastructure for ~20 AWS services ($550 → $300/month); wrote custom modules, provisioned ClickHouse; Ansible for per-instance configuration
  • Optimized CI/CD across multiple repos (GitHub Actions + GitLab CI); unified pipeline structure reduced deploy time from 8 to 2 minutes
  • Built observability stack from scratch — VictoriaMetrics probes, Prometheus alerting, custom Grafana dashboards; AlertManager integrated with Telegram and Matrix
  • Developed and deployed SaaS monitoring service (Go + Gin/GORM + React) — ping, domain, SSL checks with configurable intervals (10s–24h)
  • Responded to SSH brute-force attacks via KVM live access, port blocking, user rotation, and timeout configuration
  • Grew infrastructure team from 3 to 6 engineers; mentored 3 junior members
  Kubernetes, Helm, Docker, Terraform, Ansible, AWS, Yandex Cloud, GitLab CI, GitHub Actions, Go, PostgreSQL, ClickHouse, VictoriaMetrics, Grafana

AZNResearch — Fullstack Engineer
Jul 2022 — Oct 2023
  • Developed backend services with .NET Core + EF Core; built REST APIs for internal government and enterprise systems
  • Introduced Git workflow, GitLab CI pipelines and Docker for dev environments
  • Improved team productivity by ~25%
  C#, .NET Core, SQL Server, MySQL, Angular, Docker, GitLab CI

Project Tech — Software Engineer / Co-Founder
Feb 2017 — Oct 2019
  • Built multiplayer backend for Bhop Jump (on-prem master server + Google Cloud); P2P + dedicated servers up to 16 players
  • Delivered 10+ production projects including games and business software
  • Deployed services using Docker; used macOS VMs for iOS build pipelines
  Node.js, WebSockets, Docker, React, C#, Google Cloud, Firebase

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EDUCATION
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Udemy — Linux Foundation Computer Science (2025)
Udemy — Certified Kubernetes Administrator (2025)
Siberian Polytechnic University — Faculty of Information Technology (2017–2018)

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LANGUAGES
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Russian: Native
English: IELTS 7.0 (B2)