XII Medical · 22 hours ago
Lead Firmware Engineer
Union City, CA
Full-time
Onsite
Lead/Staff
$170K/yr - $230K/yr
8+ years expXII Medical is a startup company developing a next-generation neurostimulation system for treating obstructive sleep apnea. They are seeking a Lead Firmware Engineer who will provide technical direction and oversight of the firmware team while engaging in hands-on firmware development and debugging. The role requires collaboration across multiple engineering disciplines to ensure cohesive system behavior and compliance with quality standards.
Health CareMedical DeviceWellness
Hiring Manager
Colleen Massey
Responsibilities
Serve as the technical lead and primary hands-on contributor for all firmware development activities across implant, OMAT, and related accessories
Own the firmware architecture, system design, and technical decision-making, including low-level implementation details
Establish and enforce coding standards, architecture patterns, and system-level design reviews to ensure high-quality, maintainable code
Engage in daily hands-on coding, implementing new features, writing low-level drivers, optimizing power consumption, and improving system reliability
Perform in-depth firmware debugging using oscilloscopes, logic analyzers, JTAG/SWD, and low-level hardware diagnostics tools
Drive root-cause analysis of complex system issues involving interactions between firmware, analog circuitry, sensors, RF modules, and power electronics
Apply a deep understanding of electrical design to ensure the firmware correctly interacts with analog, digital, RF, and power subsystems
Collaborate closely with Electrical Engineering to review schematics, interpret board-level designs, evaluate component selection, and define HW–FW interface specs
Work closely with mechanical, electrical, software, and system test teams to ensure cohesive system behavior and seamless product integration
Lead system-level debugging sessions involving multi-disciplinary collaboration to rapidly identify and resolve issues affecting implant and mat performance
Ensure firmware development complies with IEC 62304, internal design controls, and clinical release requirements
Own documentation for firmware design, verification, validation, and risk management (ISO 14971)
Qualification
Required
BS or MS in Electrical Engineering, Computer Engineering, or related technical field
8–12 years of embedded firmware engineering experience (medical device preferred)
Significant hands-on experience with MCU firmware, particularly STM32 and Nordic Micro
Deep knowledge of electrical circuits, power systems, and sensor interfacing
Excellent debugging skills across analog, digital, RF, and firmware layers
Strong documentation ability and familiarity with design control environments
Preferred
Experience with implantable devices, neurostimulators, or class II/III medical systems
Familiarity with IEC 60601, IEC 62366, ISO 14971, and safety-critical firmware development
Experience with low-power wireless power transfer, coil systems, or RF modulation
Experience with automated unit testing frameworks (Ceedling, Unity, etc.)
Company
XII Medical
XII Medical provides minimally invasive technology for obstructive sleep apnea.
11-50 employees
H1B Sponsorship
XII Medical has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (1)
2023 (1)
Funding
Current Stage
Growth StageTotal Funding
$75MKey Investors
Omega Funds
2024-08-21Series B· $45M
2022-05-05Series A· $30M
Leadership Team
G
Garrett Schwab
President and CEO
Bhavesh Patel
SVP, Software
Recent News
Crunchbase News
2025-06-26
2025-05-04
2025-04-02
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