• LLM Inference: Operate a multi-tenant LLM inference platform on self-hosted GPUs, with vLLM as the serving engine, LiteLLM as the gateway, and FP8/NVFP4 quantization and KV-cache sizing backed by load testing. Cut token cost by 25-40% through provider routing.
• Kubernetes: Manage clusters across AWS, GCP, Azure and DigitalOcean for client and internal environments.
• IaC & GitOps: Deploy clusters, CI/CD pipelines and applications from scratch with Terraform (Scalr), Helm and ArgoCD, including production workload migrations from EC2 to Kubernetes.
• Secrets: Kubernetes-integrated secret management with HashiCorp Vault through the Vault Secrets Operator.
• Reliability: PostgreSQL on CloudNativePG with WAL archiving recovery and verified PITR, plus Grafana, Prometheus and Loki for observability.

• Managed 30+ Kubernetes clusters across AWS, GCP, Azure, and on- premise (k3s/kubeadm), ensuring high availability and disaster recovery for client environments.
• Operational Architecture: Collaborated with cross-functional teams to design scalable, secure architectures aligned with business requirements.
• Tooling & Automation: Focused on adoption of OpenTelemetry, FluentBit, Loki, and Tempo to centralize logging/tracing, reducing incident resolution time.
• CI/CD: Standardized secure pipeline designs using Gitlab, ArgoCD, Jenkins and Github Actions enforcing best practices (Trivy for vulnerability scanning, SonarQube for code quality).
• Observability: Built and maintained monitoring stacks (Prometheus/Thanos, Grafana, ELK).
• Configured and implemented Kong for API gateway functionality and load balancing, and Keycloak for robust identity management,
• Mentorship: Provided technical guidance to junior engineers on Kubernetes, Helm, and GitOps workflows.

• Negotiate with vendors regarding software services and products.
• Implement the necessary solutions to meet the needs of the company and its users.
• Manage the IT team and coordinate the work of the area.
• Manage GitLab CI and ArgoCD deployments.
• Migrate on-premise services with Docker to a cloud infrastructure with Kubernetes.

• Definition and improvement of CI / CD processes (Gitlab, Drone, Gitea )
• Documentation management (WikiJS)
• Monitoring by Prometheus + Grafana
• Log management through Promtail + Grafana Loki + Grafana
• Container management through Docker with Docker-compose, Traefik as reverse proxy and loadbalancer.
• Tutoring of students in computer engineering internships.

After-sales technician:

• Incident management.
• Warranty management.
• Customer service.
• Provide comprehensive support and problem resolution for customers.
• Stock management.