Senior Network & Systems Administrator | Cloud, Security & Automation
Merrimack Valley, MA • 20+ Years in IT • Homelab + Hybrid Infrastructure Engineer

• 20+ years managing and securing hybrid infrastructure with a focus on Cloud, Security & Automation
• Expertise in Network Management, Virtualization, and Endpoint Engineering
• Building scalable, secure, repeatable solutions across enterprise + homelab
• Automating infrastructure and workflows with PowerShell, Microsoft Graph, GitHub Actions, and n8n
• Building intelligent automation using AI Agents, MCP Servers, RAG, and Hermes
• Always experimenting with Zero Trust, monitoring, and self-hosted platforms
• Running hybrid self-hosted and cloud infrastructure across on-premises and cloud platforms
• Available for remote, consulting, freelance, and contract IT opportunities

Infrastructure: Proxmox · QNAP · Hyper-V · UniFi · pfSense · Proxmox Backup Server · Veeam · Backblaze B2
OS: Windows Server · Ubuntu Server · Debian · Linux
Containers: Docker · Compose · Portainer
Cloud: Azure · Microsoft 365 · Intune · Autopilot · Entra ID · Exchange Online · Teams · SharePoint
Automation: PowerShell · Graph API · GitHub/GitLab CI · n8n · AI Agents · MCP · RAG · Grafana · Prometheus
Networking: VLAN Design · WireGuard/Tailscale · Nginx Reverse Proxy/WAF · Cloudflare Tunnels · Fing
Self-Hosted: AdGuard · Home Assistant · RustDesk · Uptime Kuma · Plex · LinkStack · Seafile · UrBackup · WikiDocs · Bitwarden
Security: Wazuh · CrowdSec · LimaCharlie · Cloudflare Zero Trust · UniFi IDS/IPS · pfSense Firewall
Enterprise: ConnectWise · ScreenConnect · Auvik · Sophos · Proofpoint · Microsoft Defender · Cisco Umbrella · CrowdStrike · Mimecast · ManageEngine · KnowBe4 · Meraki

• NOC Dashboard — Self-hosted Network Operations Center for homelab infrastructure: Proxmox VMs, Docker containers, UPS status, and backup coverage FastAPI React Docker
• SIEM + CrowdSec Detection — Wazuh SIEM custom detection rules and CrowdSec bouncer configs across a multi-host homelab, with OpenCanary honeypot integration Wazuh CrowdSec Security
• Prometheus + Grafana Alerting (n8n) — Self-hosted homelab observability — Prometheus + Grafana + node_exporter + cAdvisor across multiple Docker hosts, with alerting via n8n polling the Prometheus API into Telegram (no Alertmanager required) Prometheus Grafana n8n
• Uptime Kuma Monitoring — Uptime monitoring and alerting stack for all homelab services Docker Cloudflare Tunnel
• AdGuard + Unbound Stack — Redundant network-wide DNS filtering with recursive resolution and centralized sync DNS Docker

• Vault RAG Pipeline — Self-hosted RAG pipeline for an AI homelab agent — semantic search over an Obsidian vault with automated secrets/IP redaction before embedding, Qdrant + Ollama (nomic-embed-text) + gitleaks Qdrant Ollama RAG Python
• Multi-Server MCP Gateway — Hardened, read-only MCP gateway exposing Portainer, GitHub, Filesystem, Proxmox, PBS, and Vault RAG visibility to an AI agent — loopback-only, SSH-tunneled, zero client-side credentials MCP Docker Security Python
• n8n Self-Healing Infrastructure — Automated VM/container recovery, backup-failure alerting, and SIEM event routing to Telegram n8n Proxmox CrowdSec
• Job Watch — Job-search aggregator with AI match scoring and per-listing alerting Python RapidAPI Telegram
• Obsidian Vault Setup — Personal knowledge base built on Obsidian, structured as long-term memory for a self-hosted AI agent — RAG-indexed, auto-logged, secrets-redacted before embedding Obsidian Knowledge Base

• System Tools Suite — Sysadmin and security toolkit: network diagnostics, DevOps helpers, digital forensics Docker
• RustDesk Self-Hosted — Fully self-hosted remote desktop replacing TeamViewer/AnyDesk Docker Linode
• Exam Prep — AI-powered IT certification prep with spaced repetition and timed exams (MD-102, AZ-104, CompTIA) Python AI

• 🌐 Portfolio: https://portfolio.mrdtech.me

• 💼 LinkedIn: https://www.linkedin.com/in/michaeldziegiel

• 🖥️ Website: https://mrdtech.me

• 📧 Email: techgeek@mrdtech.me

• 

⭐ Always building, improving, and securing IT environments — one project at a time.