Oleg User

DevOps Engineer with extensive experience in building scalable, secure, and efficient infrastructure to provide modern applications. Adept at leveraging cutting-edge tools and practices to streamline CI/CD pipelines, optimize cloud resources, and enhance system observability.

I thrive in dynamic environments where I can bridge development and operations, ensuring seamless deployments and operational excellence. My expertise spans AWS, Kubernetes (EKS), Terraform, Helm, and Docker, enabling me to deliver robust and cost-effective solutions tailored to project needs.

Core Skills & Expertise

• Cloud & Infrastructure: AWS, Azure, Google Cloud, Yandex Cloud, DigitalOcean, Hetzner. Kubernetes, Docker Compose, Helm, Kastomize. Deployment of new services, refactoring, optimization, support, maintenance, planned development, cost optimization.
• GitOps, IaC, CI/CD: Flux, Argo CD, GitLab CI/CD, GitHub Actions, Terraform, Ansible. Declaratively define infrastructure, environments, and systems. Configure secret imports, tests, migrations, package publishing, and deployment. Ensure continuous development and delivery.
• Observability & Monitoring: Prometheus, VictoriaMetrics, Grafana, ELK, Alerting. Ensuring system ownership, visibility of business processes and events. Monitoring infrastructure performance and reliability.
• Security & Access Management: Vault, Keycloak, VPN, IPsec, MCP, ACL, Firewalls, WAF. Ensuring secure access to all company services and sensitive data within this environment. Access control, access group management, variable import configuration, and dynamic credentials issuance.
• AI & ML: Configuring secure system access for AI tools. Deploying and maintaining the ML environment for development.
• Networking: BGP, OSPF, EIGRP, IS-IS, MPLS, DMVPN, L2/L3VPN, VLAN, MSTP, LACP, MC-LAG, VPC, FEX, Switch Stack, IPv4/IPv6, Multicast, IPTV.

As a professional, I am driven by a passion for solving complex problems, improving processes, and delivering high-quality solutions that align with organizational goals. Engineer with strong problem ownership mindset — consistently takes initiative, drives issues to resolution across team boundaries, and ensures delivery. Whether collaborating with cross-functional teams or leading independent initiatives, I bring technical expertise, creativity, and a results-oriented mindset to every challenge.