Senior Firmware Test Engineer

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Senior Firmware Test Engineer in USA

Cala Health
Full time
Email

USA
09/18/2026
Report

San Mateo, CA

Responsibilities

Design, develop, and document firmware design-verification test tools, methods, protocols, and reports for commercial products and clinical studies.
Build and maintain automated test infrastructure and expand continuous firmware regression coverage.
Collaborate with engineering teams to bring up new test tools and methods.
Read and modify existing bare-metal or RTOS firmware to debug issues, add test hooks, and implement validation features.
Verify electrical stimulation waveforms, BLE communications, OTA-DFU fault handling, sensor measurements, and logging.
Support requirements development, risk analyses, DHF deliverables, design reviews, and phase-gated development.

Requirements

BS or MS in Electrical Engineering, Computer Engineering, Computer Science, or an equivalent field.
5–7+ years of experience in embedded firmware testing and design verification.
Embedded firmware experience and understanding of hardware, firmware, and software interactions at the system level.
Proficiency in C/C++ and Python, including the ability to read and modify bare-metal or RTOS firmware and inject test hooks.
Experience generating, designing to, and testing product requirements; writing test protocols and reports; and executing formal DVT.
Troubleshooting and root-cause analysis skills, including use of hardware debugging tools such as oscilloscopes.
Prior medical-device development experience, including testing under Design Controls.
Familiarity with IEC 62304, IEC-60601, and ISO 13485.
Preferred experience with external regulatory testing labs, EMC, Safety, FCC certifications, clinical-study devices, regulated research, and embedded-device integrations with mobile apps, desktop tools, or cloud services.

Benefits

Applicants must be authorized to work full-time in the United States or eligible for a sponsorship path Cala Health can support.
Employees receive tools, training, and mentoring.
Sponsorship decisions are made individually based on role, timeline, and cost considerations and are not guaranteed.

Cala Health

Cala Health is a bioelectronic medicine company transforming the standard of care for chronic disease. The company’s wearable neuromodulation therapies merge innovations in neuroscience and technology to deliver individualized peripheral nerve stimulation. The first indication for Cala Health’s w...

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