Company Overview
Signifier Medical Technologies Limited is headquartered in London, UK and is a fast-growing and award-winning international medical technology and device company with operations based in the U.S.A, Canada and Europe. We develop innovative, non-invasive devices for the treatment of sleep disordered breathing.
Job Overview
The Firmware Engineer II leads all firmware initiatives across sustaining and next‐generation products, ensuring reliable, scalable, and maintainable embedded firmware. This role owns project execution on multiple platforms, from concept through verification, including prototype testing and design transfer. The Firmware Engineer II partners closely with all of R&D and QA, to deliver releases that are robust,
manufacturable, and compliant. AI‐assisted development is expected to improve productivity, quality, and documentation in alignment with our QMS requirements.
Duties and Responsibilities
- These duties, responsibilities and related tasks may include, but are not limited to, the following:
- Develop and debug firmware for next-gen and sustaining products
- Lead architecture design, planning, risk tracking, and documentation release
- Program embedded C/C++ on 32‐bit MCUs, including real‐time logic and BLE 5.x features
- Create diagnostics, manufacturing tests, and OTA update workflows
- Use AI tools within the QMS to accelerate coding, test creation, documentation, and reviews
Related Tasks:
- Produce IEC 62304–aligned documentation, traceability, release notes, and test specs
- Engineer safety, reliability, and maintain requirements‐to‐verification traceability
- Work with EEs for board bring‐up, troubleshooting, and debugging new hardware
- Build user/test software interfaces to support bench testing and manufacturing
- Support field, supplier, and manufacturing investigations for RCA and corrective actions
Ideal Technical Knowledge/Technologies Used/Achievements:
- Experience in regulated development (e.g., IEC 62304 lifecycle and verification)
- Real‐time software and RTOS fundamentals; TI‐RTOS exposure preferred
- Experience with OTA update architectures (bootloader, image validation, rollback)
- Power management expertise for battery products
Beneficial Technical Knowledge/Technologies Used/Achievements:
- Exposure to regulated or quality‐managed development (traceability, design controls)
- Experience defining factory diagnostics, build validation, or service/update workflows across multiple SKUs
- Experience with closed‐loop control in embedded systems (sensing, regulation, feedback)
- Secure communications and data integrity techniques (e.g., CRCs, authenticated updates) appropriate for embedded devices
- Python or similar for build/test script automation
Minimum Experience:
- 3–6 years of embedded firmware experience in C/C++ on 32‐bit MCUs
- Prior responsibility for leading firmware workstreams or features from requirements through verification on more than one platform/product
- Hands‐on BLE development and debugging (services/roles, connection/pairing
- Proficiency with SPI, I²C, UART and bench‐level debug tools (JTAG/SWD, logic analyzer, oscilloscope)
- Comfortable with Git, code review, and working within a quality system
Education:
- BS in Electrical Engineering, Computer Engineering, Computer Science, or related field (or equivalent practical experience)
- MS preferred
Signifier Medical Technologies is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state or local law.
Company Description
Driving Innovation in the Sleep Market
Signifier Medical Technologies (SMT), previously known as eXciteOSA® , is a medical technology company focused on the development and commercialisation of innovative and non-invasive solutions for patients with snoring and sleep disordered breathing conditions.
Pioneers in challenging the wisdom of conventional snoring and sleep apnea treatments, we’ve created the first daytime therapy that tackles the root cause of sleep disordered breathing by physiologically retraining the airway against collapse.
The Vision of Signifier Medical Technologies: eXciteOSA
We aspire to revolutionize sleep apnea therapy with the novel and ground-breaking eXciteOSA sleep apnea device that will help solve the conditions of snoring and mild sleep apnea, making a real impact on the lives of millions of people globally, in an area with significant unmet medical needs.
Pay: From $120,000.00 per year
Benefits:
- 401(k) matching
- Dental insurance
- Employee assistance program
- Health insurance
- Health savings account
- Life insurance
- Paid time off
- Vision insurance
Application Question(s):
- Will you now or in the future require sponsorship to be eligible to work in the U.S.?
- Relocation is not available for this position. Seeking local candidates ONLY. Are you currently a resident of North Carolina?
Education:
Experience:
- C++: 3 years (Required)
- Debugging: 3 years (Required)
- GIT: 3 years (Required)
Ability to Commute:
- Wake Forest, NC 27587 (Required)
Work Location: In person
