From Circuit to Cloud
Sam Warth
Hardware-to-SaaS Engineer
I design the circuit, write the firmware, containerize the backend, and ship the frontend — then stand behind it all. Founder-CTO of PaktPerfect with 500+ active users, builder of custom IoT hardware, and the engineer you call when a project crosses too many layers for one specialist.
Featured Projects
Systems I've built that span hardware, infrastructure, and software — from production SaaS with real paying customers to IoT devices with custom PCBs in the field.
PaktPerfect
Production SaaS for precision-cut foam manufacturing — 500+ active users managing orders from design through delivery. Real-time multi-user collaboration on cutting layouts, Stripe subscription billing, and role-based access across organizations. Solo-founded and built end-to-end.
AutoTopo
Desktop app that transforms topographic maps into 3D-printable relief models. Processes geospatial elevation data through GDAL into a Rust geometry pipeline, outputs print-optimized layer-by-layer 3MF for FDM printers. Ships as a native desktop app with interactive map preview.
Cartainers
End-to-end IoT monitoring for luxury vehicle storage. Designed KiCad PCBs with ESP32 sensors, flashed ESPHome firmware, deployed Home Assistant dashboards. Full hardware lifecycle: schematic to Gerber to field-deployed device with live cloud monitoring.
Building something that spans hardware and software?
If your project crosses too many layers for one specialist to handle, I'm your engineer. Let's talk about what you're building.