Self-taught infrastructure engineer with 2+ years of hands-on experience in blockchain node operations, cloud infrastructure, Linux administration, and automation. Currently working as a DevOps engineer at a Ukrainian legal-services company, managing its production infrastructure end-to-end, while transitioning toward LLMOps / AI infrastructure.
OS & Core · Linux (Ubuntu, Debian) · Bash · systemd · Nginx · Docker · docker-compose
Virtualization · Proxmox VE · KVM/QEMU · VM lifecycle management
CI/CD & VCS · GitLab CI/CD · GitHub Actions · Git · Shell scripting
Monitoring · Prometheus · Grafana · Node Exporter · Graylog · Telegram Alerting
Security · SSH hardening · Firewall management (pve-firewall, iptables) · VPN (WireGuard, IKEv2/StrongSwan)
Identity & Access · FreeIPA · Keycloak · WireGuard UI · MDM (Mosyle Business)
IaC & Cloud · Terraform · AWS EC2 · DigitalOcean · Hetzner · Oracle Cloud · Azure
AI & LLMOps · Claude Code (multi-agent architectures, subagents, hooks/guardrails) · Claude & OpenAI APIs · AWS Bedrock · prompt engineering · AI-assisted infrastructure workflows
Web3 · Node Operations (30+ protocols) · Validator setup · RPC infrastructure · DePIN · EVM
DevOps / Infrastructure Engineer — Agrumiuris (May 2026 – Present) Full infrastructure recovery and administration after previous admin departure.
- Proxmox VE cluster: 18 VMs, 125GB RAM, 4× NVMe, Hetzner dedicated
- Security audit: SSH hardening, firewall rules, VPN access control, key rotation
- GitLab CI/CD: restored offline runner, fixed pipeline configs, set up auto-deploy
- Backup system: Proxmox vzdump, ZSTD compression, automated rotation (2×/day)
- MDM: Mosyle Business — 12 corporate MacBooks, DEP enrollment, remote management
- Monitoring: Grafana + Graylog stack across all VMs
- Infrastructure: Nginx Proxy Manager (lb-01), PowerDNS (dns-01), WireGuard VPN, FreeIPA, Keycloak, Bitrix24 CRM, AI Agent app (Node.js + OpenAI)
Web3 Infrastructure Engineer — NodeRunner (Mar 2025 – Jan 2026)
- Operated 30+ blockchain nodes across AWS, Azure, DigitalOcean, Hetzner
- Built monitoring stack: Prometheus + Grafana + Node Exporter + Telegram alerts
- Automated node deployment with Bash, systemd service management
Blockchain Ambassador & Node Operator — Aleo Protocol (Mar 2023 – Feb 2025)
- Operated Aleo full node (ZK protocol)
- Technical content creation, community onboarding, node setup guides
claude-multi-agent-assistant Multi-agent personal assistant on Claude Code: thin router + 7 specialized subagents, file-based memory in git, deterministic fail-closed guardrail hooks (PreToolUse data isolation, PostToolUse validation), mentor-mode agent with a 4-level hint ladder. Terraform for AWS deploy. MIT.
node-infra Bash-based node monitoring and deployment toolkit. Includes systemd service management, Docker containerization, Nginx reverse proxy, and GitHub Actions CI pipeline with shellcheck.
monitoring Production-ready monitoring stack: Prometheus + Grafana + Node Exporter with Telegram alerting and persistent storage via Docker volumes.
devops-board Offline-first Kanban task manager as a single HTML file. Drag & drop, subtasks, timers, deadlines, reminders, Telegram integration, EN/RU/UK multilingual support. No dependencies, no server required.
celestia-infra Terraform infrastructure for Celestia light node + monitoring stack on AWS. Two-server deployment: node + Prometheus/Grafana. One-command deploy and destroy.
ai-server-assist AI-powered server management agent using AWS Bedrock + FastAPI. Supports Claude, Llama, Nova, Mistral with shell execution via web UI.
celestia-node Automated deployment script for Celestia light node on Mocha testnet. One-command install with systemd service setup.
arc-node Deployment automation for Arc Network node (EVM-compatible). Dual-service architecture: Execution Layer + Consensus Layer via systemd.
LLM serving (vLLM, Ollama) · RAG (Qdrant, pgvector) · LLM observability & evals (Langfuse) · Kubernetes · Python automation