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haeniken/README.md

English | Русская версия

Sergey Haeniken

DevOps / DevSecOps / SRE Engineer · Platform Reliability · Business-Focused Delivery

Experience Availability Scale

Executive Summary

I help teams keep critical systems stable, secure, and cost-efficient.

My focus is measurable impact: uptime, incident reduction, delivery speed, and infrastructure cost control.

Business Outcomes

Outcome Result
Critical service reliability Up to 99.97% availability
Platform scale Operated 100+ microservices in containerized environments
SaaS infrastructure ownership Supported 500+ client resources
Performance optimization Reduced CPU/IO load by ~30%
Incident quality Reduced recurring client-facing errors by up to 7.2x
Cost efficiency Reduced infrastructure/storage costs by ~20%
Operational readiness Maintained 24/7 incident response

What You Get

  • safer and faster releases with CI/CD and GitOps;
  • strong production ownership and clear recovery playbooks;
  • better observability and earlier anomaly detection;
  • security hardening integrated into regular delivery flow;
  • practical architecture decisions balancing risk, speed, and maintainability.

Technical Profile

Location

  • Saint Petersburg, Russia (remote format)

Pinned Loading

  1. gitops-traefik-panel gitops-traefik-panel Public

    PHP

  2. Azerothcore-3.3.5-Altershop Azerothcore-3.3.5-Altershop Public

    Simple altershop for TrinityCore 3.3.5 with russian localization

    5 2

  3. docker-squid-bookworm docker-squid-bookworm Public

    Dockerized Squid 5.7 (squid-openssl) on Debian 12 Bookworm Slim

    Shell

  4. vibescripts vibescripts Public

    Simple vibescripts for Linux/DevOps tools

    Shell