Senior Firmware Engineer

Health Data Innovations, Inc.; San Francisco (CA); Hybrid; USD 180,000 - 240,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision coverage

401(k) with company match

Learning & development stipend

Dog-friendly office

Job summary

Hinge Health is seeking a Senior Firmware Engineer to join the Hardware Engineering team in a role that spans concept through production. You will own a significant firmware scope, help shape system architecture, and collaborate with electrical, mechanical, and manufacturing teams to deliver dependable medical devices.

You will lead design reviews, drive test automation, and contribute to regulatory documentation.

Qualifications

• 5+ years of professional firmware or embedded software experience in consumer electronics, medical devices, or highly integrated embedded hardware.
• Strong experience with C in embedded systems and RTOS-based architectures (Zephyr or FreeRTOS).
• Experience owning firmware from design through production, including planning, Python-based testing, and debugging workflows.

Responsibilities

• Own a substantial firmware scope end to end and make design decisions across prototyping, design, testing, and production.
• Design, implement, and test firmware for your scope and build maintainable embedded software.
• Lead complex firmware projects from concept to production readiness and mentor others.

Skills

C in embedded systems

RTOS (Zephyr/FreeRTOS)

I2C

SPI

UART

Python testing/automation

version control

embedded debugging

Tools

Nordic nRF5x SoCs

Nordic Connect SDK

Bluetooth Low Energy

Job description

About the role

Join Hinge Health’s Hardware Engineering team to build the firmware behind next-generation, highly integrated medical devices. Your work will help bring products from concept through production and support technology designed to reduce pain and improve the lives of our members.

As a senior engineer, you’ll own a substantial firmware scope end to end, make technical decisions across prototyping, design, testing, and production, and work closely with electrical, mechanical, manufacturing, product, and design partners. You’ll help shape system architecture, strengthen the team’s engineering practices, and contribute to a small, capable group where ideas and ownership matter.

The ideal candidate is excited about solving real problems with hardware – your work will have a direct impact on reducing pain and improving the lives of our millions of members. In joining our HW group within the broader R&D organization, you will be part of a highly capable, motivated, small team where your contributions and ideas truly matter.

What You’ll Accomplish

In your first 3 months

• Learn the product architecture, firmware codebase, development workflows, and quality documentation practices

• Partner with engineering and product peers to understand system requirements, design trade-offs, and integration needs

• Take ownership of a defined firmware feature or subsystem and establish an implementation and test plan

In your first 6 months

• Design, implement, and test firmware for your scope, building maintainable and testable embedded software

• Integrate firmware with electrical, mechanical, and manufacturing systems; investigate issues across hardware and software boundaries

• Improve embedded build and test automation and support clear documentation for quality and regulatory needs

In your first year

• Lead a complex firmware scope or project from concept through development, integration, and production readiness

• Guide system architecture and technical trade-offs through prototyping, detailed design, testing, and production ramp

• Raise the bar through design and code reviews, mentoring, and reliable engineering practices

Who You Are

• You take ownership of complex technical work and can move between system-level decisions and implementation details

• You work collaboratively across disciplines, communicate trade-offs clearly, and welcome feedback in design and code reviews

• You approach quality methodically, balancing development speed with robust testing and clear documentation

• You enjoy mentoring other engineers and helping a small team deliver dependable products

Basic Qualifications

• 5+ years of professional firmware or embedded software experience writing code for consumer electronics, medical devices, or other highly integrated embedded hardware

• Strong experience with C in embedded systems, RTOS-based system architecture (such as Zephyr or FreeRTOS), low-level drivers, and hardware communication protocols such as I2C, SPI, or UART

• Experience owning firmware for a project or subsystem from design through production, including technical planning, Python-based testing or automation, version control and embedded debugging workflows

Preferred Qualifications

• Experience developing medical devices or working in another highly regulated industry, such as aerospace or automotive

• Experience using AI tools to develop firmware, including copilot or agentic workflows

• Experience with Nordic nRF5x SoCs and the Nordic Connect SDK

• Experience developing with Bluetooth Low Energy

• Experience designing bootloaders, firmware updates, or memory maps

• Experience building embedded CI pipelines and automated hardware-in-the-loop testing

• Experience mentoring or technically guiding other engineers

Hinge Health Hybrid Model

We believe that remote work and in person work have their own advantages and disadvantages, and we want to be able to leverage the best of both worlds. Employees in hybrid roles are required to be in the office 3 days per week, for the full 8 hours of a typical business day. The San Francisco office has a dog-friendly workplace program.

About Hinge Health

At Hinge Health, we’re using technology to scale and automate the delivery of healthcare, starting with musculoskeletal (MSK) conditions, which affect over 1.7 billion people worldwide. Our AI-powered, human-centered care model spans MSK, pelvic health, gastrointestinal (GI), and migraine care. With over 60 partnerships with health plans, PBMs, and other ecosystem partners, Hinge Health is available to over 25 million people across more than 2,900 employers. The company is headquartered in San Francisco with additional offices in Montreal and Bangalore. Learn more at hingehealth.com.

What You’ll Love About Us

• Inclusive healthcare and benefits: On top of comprehensive medical, dental, and vision coverage, we offer employees and their family members help with gender-affirming care, tools for family and fertility planning, and travel reimbursements if healthcare isn’t available where you live

• Planning for the future: Start saving for the future with our traditional or Roth 401(k) retirement plan options, which include a 2% company match

• Modern life stipends: Manage your own learning and development

• Grow with us: Access discounted company stock through our ESPP with easy payroll deductions

Culture & Engagement

Hinge Health is an equal opportunity employer and prohibits discrimination and harassment of any kind. We make employment decisions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, veteran status, disability status, pregnancy, or any other basis protected by federal, state, or local law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements.

We provide reasonable accommodations for candidates with disabilities. If you need assistance or an accommodation due to a disability, let us know by reaching out to your recruiter. By submitting your application, you acknowledge that we use your personal data as outlined in the personnel and candidate privacy policy.

Co-authored with Glean