From silicon to cloud.
Engineering Square is not software-only. We do full-stack product engineering — PCB, embedded firmware, mechanical design, and robotics — with the same team that writes your backend and your app. One accountable partner from the board to the dashboard, out of Austin, TX.
What we build
PCB Design & Validation
We take a board from a requirement to a working prototype: schematic capture, layout, and a prototype run, then bring-up and functional testing on our own test rigs. Boards are validated against the firmware that will actually run on them — not signed off on a datasheet — so the first physical unit is a unit you can trust, not a lesson for the second spin.
IoT & Embedded Firmware
We write firmware for RP2040 / Raspberry Pi Pico-class microcontrollers and wireless MCUs — sensor bridges, custom wire protocols, and the plumbing that moves data off the device. Fleets talk to a PostgreSQL and Node backend on our own house stack, and every unit ships OTA-updatable so the firmware keeps improving long after the hardware leaves the bench.
Mechanical & Industrial Design
The enclosure is engineered alongside the board, not bolted on after. We model in Fusion 360 with design-for-manufacture in mind, then fabricate in-house — FDM 3D printing and CNC machining for prototypes and short production runs, made in Texas. Electronics and mechanicals converge on the first prototype so fit, thermals, and access are solved before tooling.
Robotics & Automation
We integrate motion — servo and actuator control — and build the embedded systems around it: kiosk and embedded-display deployments on iPad and Android, and workspace-pod automation that senses occupancy, access, and climate and acts on it. The control firmware, the sensors, and the dashboard that watches the fleet are built by the same team, so the loop actually closes.
From Prototype to Production
This is the part most vendors can't offer: one team writes the firmware, stands up the backend, and ships the web app. You get a single accountable partner from the PCB to the SaaS dashboard — no integration seam between the hardware shop, the firmware contractor, and the app agency, because there isn't one. Prototype, short run, and the software that runs it all come from the same room.
Every device we build is AI-ready
Every board we ship is built to carry intelligence, not just run firmware. Telemetry flows into the same PostgreSQL and Node stack our software team runs, edge models deploy straight to the microcontroller, and OTA updates carry models — not just firmware — to hardware already in the field.
Telemetry into the house stack
Every unit reports to a PostgreSQL and Node backend we build and operate — the same stack behind our software work — so device data lands somewhere queryable from the first unit. That is the substrate you train and evaluate models against later.
Edge-model deployment
We deploy right-sized models directly to the microcontroller, so the device can perceive and decide on its own. Inference happens where the sensor is — no cloud round trip in the control loop, and no dead device when the network drops.
OTA carries models, not just firmware
The OTA pipeline that updates firmware also ships new models to deployed hardware, so a fleet in the field improves without a truck roll. Model versions get the same rollback and staged-rollout discipline as a firmware release.
Sensor → model → actuator, on-device
Sensors feed the on-device model and the model drives the actuators in real time — the perception-to-action loop lives in firmware the same team writes. The loop closes because the people building it own every link in it.
Prototype to production
Schematic & CAD
We start from the requirement, not a reference design. Schematic capture, board layout, and mechanical CAD in Fusion 360 develop together, so the electronics and the enclosure are designed to fit on the first prototype rather than reconciled on the third.
Prototype & Bring-Up
Boards come back and go straight onto our own test rigs. We bring the hardware up, write firmware against the real silicon, and print or machine enclosures in-house — so a working, testable unit exists before anyone commits to a production run.
Firmware & Cloud
The same team wires the device to its backend: custom protocols on the wire, a PostgreSQL and Node pipeline in the cloud, and OTA so the fleet stays updatable after it ships. Telemetry is instrumented from the very first unit, not added once something breaks.
Short-Run & Handoff
We manufacture short runs on in-house FDM and CNC for pilots and early production, then hand you a documented, OTA-updatable product. Higher volumes move to a contract manufacturer with our drawings — or we stay on as your embedded and backend team.