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Alexa Amundson
292fa97a8e
RoadChain-SHA2048: 9f948f149bd9f508 RoadChain-Identity: alexa@sovereign RoadChain-Full: 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
67 lines
2.4 KiB
Markdown
67 lines
2.4 KiB
Markdown
# Alexa Amundson
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**Infrastructure Engineer**
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amundsonalexa@gmail.com | [github.com/blackboxprogramming](https://github.com/blackboxprogramming)
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---
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## Summary
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Infrastructure engineer building and operating a 7-node distributed compute fleet with 707 GB storage, 20 GB RAM, 52 TOPS AI acceleration, and WireGuard mesh networking. Manages 256 systemd services, 14 Docker containers, and 48+ production domains with automated monitoring and self-healing.
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---
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## Experience
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### BlackRoad OS | Founder & Infrastructure Lead | 2025–Present
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**Physical Infrastructure**
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- Built and maintain 5 Raspberry Pi edge nodes (4× Pi 5 with NVMe, 1× Pi 400)
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- Installed and configured 2× Hailo-8 AI accelerators (52 TOPS combined)
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- Managed hardware: NVMe drives, Pironman5 enclosures, OLED displays (I2C), UART adapters
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- Resolved undervoltage issues via config.txt tuning, power supply assessment, overclock removal
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**Network Infrastructure**
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- WireGuard mesh VPN (10.8.0.x) connecting all nodes through DigitalOcean hub
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- RoadNet WiFi mesh: 5 access points on channels 1/6/11, dedicated 10.10.x.0/24 subnets per node
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- 4 Cloudflare tunnels for zero-trust external access to 48+ domains
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- 48 Nginx reverse proxy configurations
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- DNS infrastructure: Pi-hole (Alice), PowerDNS (Lucidia), custom dnsmasq zones (Cecilia)
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**Compute Management**
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- 256 systemd services and 35 timers across fleet
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- 14 Docker containers via Docker Swarm
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- 27 Ollama models (48.1 GB) across 3 inference nodes
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- 11 PostgreSQL databases, 230 SQLite databases
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**Automation**
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- 212 CLI tools for fleet management
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- 52 automated tasks (17 Mac cron + 35 fleet timers)
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- Self-healing autonomy on all nodes (heartbeat + heal cycles)
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- Fleet power optimization: CPU governors, swappiness, dirty_ratio, WiFi PM, GPU memory reduction
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---
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## Technical Skills
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**Hardware:** Raspberry Pi 5, Hailo-8 NPU, NVMe, I2C, GPIO, USB, PCIe
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**Networking:** WireGuard, Tailscale, Nginx, DNS (Pi-hole, PowerDNS, dnsmasq), Cloudflare Tunnels
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**OS:** Debian/Raspberry Pi OS, systemd, udev, kernel tuning (cmdline.txt, config.txt, sysctl)
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**Containers:** Docker, Docker Swarm
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**Monitoring:** Custom KPI system (60+ metrics), thermal monitoring, voltage tracking
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---
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## Metrics
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| Metric | Value |
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| Fleet nodes | 7 |
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| Total storage | 707 GB |
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| Total RAM | 20 GB |
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| AI compute | 52 TOPS |
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| Systemd services | 256 |
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| Network connections | 106 |
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| Domains served | 48+ |
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