# Senior Firmware Engineer, Research at Cala Health

- Company: Cala Health
- What the company does: Backed by GV and Lux.
- Company website: https://calahealth.com
- Type: Startups
- Level: Senior
- Location: San Mateo, CA
- Work setup: On-site
- Pay: $125K to $175K base salary per year (USD)
- Posted: 2026-08-31
- Apply by: 2026-10-15
- Apply: https://job-boards.greenhouse.io/calahealth/jobs/6176096004
- Page: https://www.1752.vc/careers/jobs/cala-health-senior-firmware-engineer-research/

## About the role

Cala is seeking a Senior Firmware Engineer, Research to join our R&D team. You will own the firmware that goes into our clinical studies: building it, testing it, documenting it, and supporting it while studies are in the field. You will also build the prototypes that tell us whether a new idea is worth pursuing at all. This is a small team working on early-stage technology. Some weeks you are moving fast on a benchtop prototype to answer a question nobody has answered yet.

## What they're looking for

- BS/MS in Computer Science, Computer Engineering, Electrical Engineering, or related field
- 5+ years developing embedded firmware, including low-power and small-footprint designs
- Strong C programming skills and proficiency in Python
- Bare metal firmware development on microcontrollers (ARM preferred)
- Experience with ARM Cortex M0, M3, or M4
- Experience with BLE, including debugging connection and throughput issues in the real world

Tags: Hardware