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Competencies

Full spectrum of infrastructure, platform, and DevOps competencies.

Virtualization & private cloud architecture

Fault-tolerant Proxmox VE cluster on HPE BL460c Gen9/Gen10 and Dell/Supermicro nodes: 40+ VMs, HA, live migration, replication, Ceph Storage, Proxmox Backup Server.

  • Updates without service downtime
  • Critical service availability >99.99%

Kubernetes Enterprise Platform

Production 12-node cluster: Calico, MetalLB, NGINX Ingress, Cert Manager, ArgoCD, Prometheus, Grafana, Loki, OpenTelemetry.

  • 150+ containers, HPA/VPA, Network Policies
  • Canary, Blue/Green, fully automated CI/CD

Corporate network & SAN

Internal mixed data center network: BGP, OSPF, VXLAN, EVPN, MPLS, Anycast, ECMP, LACP, VRRP. Spine-Leaf architecture, segmentation, low latency.

  • SAN: Fibre Channel, iSCSI, FCoE, zoning, multipath
  • HPE 3PAR server and storage integration in SAN fabric
  • Load balancing across multiple providers
  • Automatic failover between links without service interruption

Ceph distributed storage

Ceph MON/OSD/MGR, CephFS, RBD, S3 RGW, erasure coding, replication, geo-distribution. Dozens of TB, thousands of IOPS.

  • Integration with Kubernetes and Proxmox

Databases

PostgreSQL, MySQL: schema design, performance tuning, replication and fault-tolerant clusters for highload production.

  • Tuning: indexes, EXPLAIN, vacuum, shared_buffers, connection pooling, pgBouncer
  • Replication: streaming, logical, master-slave, sync/async
  • Clusters: Patroni, Galera, InnoDB Cluster, automatic failover, PITR

GitLab Enterprise Platform

GitLab Self-Hosted HA, Runner Farm, Docker/Kubernetes Executors, Container Registry, Package Registry, GitOps.

  • Full cycle: development → testing → delivery

Enterprise web systems

10+ projects: Enterprise CRM, portals, forums, CMS, blogs. PHP 8, ES6+, Bootstrap 5, MySQL, PostgreSQL, Redis.

  • REST API, roles, Telegram/Email, Elasticsearch

Linux Software Engineering

Custom system services: monitoring, backup, auto-deploy, server management, log rotation, diagnostics.

  • Automation in Bash and Python

Infrastructure automation (IaC)

Terraform, OpenTofu, Ansible, GitLab CI/CD, ArgoCD. Cluster deployment in <30 minutes, full recovery from code.

  • Auto-provisioning servers, updates, backup

Server hardware

15+ years with HPE, Dell, Supermicro, Lenovo, IBM. Own fleet: 16× HPE BL460c Gen9/Gen10 in C7000, HPE 3PAR 7400 storage, iLO, RAID, diagnostics.

  • Assembly, upgrade, component replacement, capacity planning
  • 5 years of full solo operation of own data center

Private data center & engineering systems

Personal enterprise-grade site: blade cluster, tiered storage, network and DCIM — all under personal responsibility.

  • Storage: HPE 3PAR 7400, ASUS Stor (cold backup), Proxmox Backup Server
  • Switches Zyxel, Eltex, MikroTik, HPE
  • Home Assistant: climate, outlets, equipment monitoring in isolated segment

IT Infrastructure Architect

Data centers, networks, K8s platforms, DB, storage, fault tolerance, DR, BCP, DevSecOps, SRE. Own DC: 16 HPE blades, 3PAR, 5 years solo.

  • Asterisk experience: from scratch to production cluster