• Built IoT system with Raspberry Pi devices over Tailscale network • Deployed Headscale (self-hosted) on AWS EC2 for secure mesh networking • Developed full device management system (remote updates, logging, debugging) • Implemented SQS-based fleet orchestration + autoscaling Spot clusters • Deployed self-hosted Ollama + Faster Whisper with launch templates • Built real-time pipelines (WebSockets); achieved ~95% transcription accuracy • Reduced infrastructure costs by 60%