Founding Embedded Engineer, Consumer Hardware

Ester Health · Los Angeles (west side) · Hybrid, 2 days/week onsite

About the role

Ester is building an at-home skin-imaging mirror and companion app. We are hiring an embedded engineer to own the device layer: board bring-up, camera and lighting control, and the validation that makes every scan consistent. You will join a growing hardware team and work with our imaging, ML, and app engineers and our hardware vendors.

What you'll do

• Bring up and maintain the embedded Linux platform on our hardware.


• Integrate cameras, LEDs, and sensors; build RGB/UV capture sequences that repeat scan to scan.


• Build test and validation for capture consistency, with results that are measured, logged, and reproducible.


• Own diagnostics, logging, recovery, and calibration hooks.


• Build the device-to-app bridge: pairing, provisioning, and OTA updates.


• Take the device from prototype through alpha with our hardware and manufacturing partners.

What we're looking for

• You have shipped hardware products to customers. Consumer devices preferred.


• Embedded Linux and board bring-up on production hardware.


• Camera and sensor integration.


• Strong C/C++ and Python.


• Rigorous validation habits: you test, measure, and make decisions from data.


• A track record of reliable follow-through. You commit to dates and hit them.

Nice to have

• Took a consumer device through EVT/DVT/PVT.


• Worked with contract manufacturers and component vendors.


• Background in optics, color science, or camera calibration.

Logistics

• Hybrid in Los Angeles (west side), 2 days per week onsite.


• Founder-level equity, full benefits, base salary $175K–$215K.


• Interview process: 30-minute intro call, 1–2 hour engineering take-home, 60-minute product and technical deep dive with the team.