System Integration & Test Engineer

About RX360

RX360 is an early-stage startup building a connected wearable for senior care: a device with safety-critical features (SOS, fall detection, medication reminders) and biometric sensing, paired with a companion app and pharmacy integration. We're iterating fast through dev, proto, and scale builds across US and China manufacturing partners, on a path from tens of units to tens of thousands.

The role

Founding engineer in our Product Integration & Test function. You'll own two areas that usually belong to two people — and that's the point: - -

System integration test: proving hardware, firmware, and app work as one product — on dev boards during bring-up, and end-to-end on sealed units over BLE.

Manufacturing test: proving we can build it repeatably — owning the factory test stations (PCBA test, pre-seal assembly test, final test) through proto builds and into volume.

You don't need to be a deep specialist in either; you need real hands-on experience in both and the judgment to know when a failure is a design problem,



a firmware problem, or a line problem.

What you'll do - - - - -

Define and run integration test cycles for each build: pass/fail criteria tiered by what actually blocks (P0 gates vs. record-only), covering connectivity, safety flows, sensors, display, audio, haptics, power/charging, and OTA.

Support dev-board and first-article bring-up alongside EE and firmware — flashing, debug (SWD/J-Link), logging, isolating cross-domain bugs to a named owner.

Own the factory test stations end-to-end: station definitions, limits, fixtures, and the factory test firmware/software plan; establish golden units and tune limits against them.

Run test dry-runs before builds, support builds on-site (US SMT and China FATP), analyze per-station yield, and feed failures back into design.

Own system-level acceptance on finished units — pairing, dock charging, guided functional checks, soak tests — and the final flash/verif

📌 System Integration (Ciudad de México)
🏢 Alcor
📍 Ciudad de México