Own operations for all company infrastructure in MWS: 13 VMs and 10 S3-compatible buckets. Administer corporate GitLab, Tailscale and Grafana, plus domains, DNS, TLS certificates and backups.

• Sole owner of CI/CD design, implementation and maintenance for all company projects. Replaced manual server deployments with GitLab pipelines; production releases are triggered by authorised personnel.
• Evolved the main product's CI/CD from staging deploys to versioned production releases with pre-deployment checks, rollback jobs and automatic changelogs. Enabled independent driver-app frontend releases without restarting the entire stack.
• Independently built infrastructure from scratch for migrations first to VK Cloud, then MWS. Automated client environments with Terraform for cloud resources and Ansible for server and service configuration; prepared Docker production stacks with web servers, queue workers and scheduled jobs.
• Centralised metrics in VictoriaMetrics and logs in Loki, with Grafana dashboards and Telegram alerts for outages, resource shortages and MariaDB connection-limit thresholds.
• Automated daily physical MariaDB backups with compression and S3 uploads; built an interactive recovery tool. Set up separate Grafana backups and documented recovery.
• Standardised local development setup with Bash/PowerShell scripts for configuration, submodules, database snapshots and migrations.
• Mentor an intern from HR with no prior technical background. Within two months, she learned Ubuntu, Docker and Git/GitLab, provisioned servers with my Terraform/Ansible tooling and ChatGPT assistance, ran the full stack locally and contributed CI/CD improvements.

Hourly contract to fix server and internal-system issues and improve deployments.

• Configured and optimised frontend/backend GitLab CI/CD, GitLab Runner and Android build pipelines.
• Restored PHP backend deployments; standardised frontend, backend and admin-panel releases to dev and pre-production.
• Containerised and deployed ML services to production, configured dependencies, improved file handling and documented setup.
• Configured Nginx; resolved CORS and SSL/TLS issues, including wildcard certificate auto-renewal.
• Migrated to M.2 SSD storage, restored Grafana, configured DNS and persistent volumes for configuration and documents.

• Deployed and maintained a multi-service Docker Compose environment with secure remote access through Cloudflare Tunnel.
• Configured Google OAuth2 and protection against brute-force login attempts.
• Automated backups and maintenance with cron; administered web servers.

• Cut deployment time by 75%, from 4 minutes to 1 minute, by optimising CI/CD and build configuration.
• Reduced Docker image size by approximately 94%, from 900 MB to 50 MB, using multi-stage builds.
• Set up round-the-clock monitoring and alerts; maintained 99% uptime for key applications.
• Added pre-deployment checks to block faulty releases. Managed domain transfers to Cloudflare, DNS configuration and TLS certificates.

Maintained infrastructure across 5 servers and Jenkins CI/CD for several development teams.

• Carried out approximately 350 deployments in 6 months, averaging 2 minutes per deployment.
• Automated backups and reduced system recovery time from several hours to 15 minutes.
• Configured isolated CRM instances on a single server using Docker Compose.
• Translated business requirements into technical tasks and planned infrastructure development with the engineering team.

• Reworked GitHub Actions pipelines and added Playwright E2E tests.
• Diagnosed and fixed Redis performance issues.
• Repaired Ansible playbooks that caused server failures.