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DevOps / Backend Infrastructure Engineer

Contact Information
●​ Name: Mikhail
●​ Email: [open contact info](look above in the "contact info" section)
●​ Phone: [open contact info](look above in the "contact info" section)
●​ Telegram: @DEXzr
●​ GitHub: @xRWDev

About Me
DevOps engineer with solid hands-on experience in server configuration, backend
infrastructure automation, and cloud service integration. I specialize in deploying and
maintaining scalable services, configuring CI/CD pipelines, and managing Linux-based
environments. Proficient with Docker, networking, cloud storage, and monitoring tools. I
combine technical breadth with autonomy and reliability in solving infrastructure challenges.

Tech Stack
●​ Focus Areas: DevOps, system automation, infrastructure management
●​ Operating Systems: Linux (Ubuntu, Debian), systemd, SSH
●​ Containerization: Docker, Docker Compose
●​ CI/CD: GitHub Actions, Bash scripting, cron jobs
●​ Networking & Servers: Nginx (reverse proxy, SSL, redirects), DNS, Firewall
(iptables, fail2ban)
●​ Cloud & Storage: AWS (S3, SES, EC2, Lambda), Azure Blob, DigitalOcean
●​ Databases: PostgreSQL, MongoDB, MySQL, Redis
●​ Monitoring & Logging: logrotate, journald, custom Shell-based tooling
●​ Integrations & APIs: REST, Webhooks, Bitrix24 API, Telegram Bot API
●​ Tools: Git, Jira, Trello, Postman
Core Skills
●​ Infrastructure Provisioning: Deploying environments from scratch, configuring
services, managing secure access
●​ Configuration Management: Maintaining service configs, environment variables,
systemd unit files
●​ Email Infrastructure: Setup and operation of AWS SES, custom SMTP servers, and
DNS records (SPF/DKIM/DMARC)
●​ Cloud Workflow: Data upload/storage in S3-like services, provisioning EC2, using
Lambda for automation
●​ Third-Party Integrations: Exchanging data via REST/Webhooks with external
services
●​ Containerization & Isolation: Packaging apps with Docker, configuring networks
and service discovery via Compose
●​ Networking: Proxy config, HTTPS setup, DNS routing, basic firewall hardening

Additional Skills
●​ Scripting (Python, Node.js): Writing helper tools, processing events, handling API
traffic
●​ Backend Optimization: Bottleneck detection, refactoring, dependency cleanup
●​ CMS & PHP Maintenance: Minor backend/frontend code cleanup when needed
●​ Fast Adaptation: Rapidly picking up unfamiliar tools and tech stacks when required

Projects & Experience
●​ Set up full email delivery pipelines (SMTP, AWS SES) including DNS verification and
delivery monitoring
●​ Containerized backend services and internal automation tools
●​ Deployed and maintained services on Linux servers using CLI and custom scripts
●​ Integrated REST/Webhook-based APIs (Bitrix24, Telegram, OpenAI) for automated
workflows
●​ Configured server environments, logging, fault tolerance and recovery systems

Languages
●​ Russian / Ukrainian — Native
●​ English — Intermediate (technical documentation, CLI usage, professional
correspondence)