I have over 15 years of experience in the IT industry, across various administrative and engineering roles. I currently serve as a Senior Systems Engineer / Head of IT — leading a DevOps/SRE team, supporting the organization in maintaining and evolving advanced infrastructure for business clients.

What I Do Day to Day

  • Infrastructure administration: Maintaining, configuring, and monitoring server services and web applications on dedicated servers, VMs, and in the public cloud. Using Nginx, Apache, SQL/NoSQL (MySQL, PostgreSQL, MongoDB, Redis), plus monitoring and logging stacks like Zabbix, Nagios, Prometheus, ELK/Kibana, Grafana, and Graylog.
  • Containers & orchestration: Designing and managing Docker-based environments orchestrated with Kubernetes (self-hosted and managed — AKS, GKE/EKS), Rancher, and Docker Swarm, enabling scalable applications and efficient microservice management in production.
  • Backups & high availability: Multi-layered backup and recovery systems with regular DR testing; ensuring resilience through database/storage replication, service clustering, automatic failover, and horizontal scaling.
  • Storage & file services: Managing distributed storage/NAS systems and tuning filesystems for large data volumes.
  • Automation & CI/CD: Writing custom scripts (Python, Bash, Go) to streamline repetitive tasks, and designing CI/CD pipelines tailored to developer teams.
  • DevOps toolchain: Providing complete developer environments using Docker, Rancher, GitLab CI, TeamCity, Jenkins, Puppet, Ansible, and GitOps/CD tools like Argo CD — ensuring consistent and automated delivery from dev to production.

Specializations and Skills

  • Linux/Unix systems: Advanced knowledge of *nix administration (configuration, shell scripting, tuning).
  • Virtualization: Experience with Xen/XCP-ng, Proxmox, Hyper-V, VMware vSphere, KVM, OpenVZ.
  • Containers & cloud: Expertise with Docker, Kubernetes, Swarm, Rancher; integrating Azure, AWS, GCP with on-prem.
  • Scripting & development: Practical experience with Python (Django, Flask, FastAPI, REST), Bash; basics of Go, PHP, Ruby.
  • Web development & databases: Familiarity with HTML5, CSS3, JavaScript/TypeScript basics; frameworks like Node.js, Vue.js, Laravel. Skilled with RDBMS (MySQL, PostgreSQL) and NoSQL (MongoDB, Redis).
  • CMS & e-commerce: Years of experience with WordPress, Drupal, and especially Magento (including Prestashop, Shopware).
  • DevOps practices: Applying Agile/Scrum, CI/CD, Git, configuration automation (Ansible, Puppet, Terraform); embracing Infrastructure as Code and repeatability.
  • Streaming & multimedia: Hands-on with video streaming backends and performance optimization.
  • Open Source tools: Active user of OSS across monitoring, marketing automation, analytics, and security.
  • IoT & hardware: Prototyping with Raspberry Pi, integrating hardware modules with services.

In summary: I’m passionate about modern technologies, combining deep administrative experience with a DevOps/SRE mindset. I constantly expand my skills and share knowledge, always striving to connect the moving parts into coherent, reliable, and automated systems