Embedded Software Engineer

Salary: 100K-150K + Equity Experience: 2–5 years About OxiWear OxiWear is building next-generation wearable technology focused on real-time health measurement. Our mission is to deliver life-saving insights through innovative hardware and software solutions in compact, user-friendly devices. Through a first of its kind, FDA 510(k) cleared ear-wearable device, OxiWear provides continuous real-time measurement of blood oxygen and pulse rate while still and during motion, with accuracy across all skin tones. Role Overview We are looking for a hands-on Embedded Software Engineer to help design, develop, and support firmware for our wearable devices. This role is ideal for someone who enjoys working close to the hardware, solving real-world problems, and contributing across the stack in a fast-paced startup environment. This is a fully in-office role with close collaboration across hardware, firmware, and product teams. ResponsibilitiesDesign, develop, and maintain embedded firmware for OxiWear devices  Write efficient, reliable, and maintainable code in C  Interface directly with hardware for debugging and validation  Develop test and support tools (e.g., Python, MATLAB/Octave, or similar)  Debug issues using lab equipment (oscilloscope, voltmeter, etc.)  Collaborate with cross-functional teams (hardware, mobile, backend)  Contribute to system architecture and product design decisions  Must-Have Qualifications 2–5 years of experience in embedded software development  Strong proficiency in C programming  Basic electrical engineering skills, including:  Using a voltmeter and oscilloscope  Understanding simple circuits  Experience building test or support utilities (Python, MATLAB, Octave, or similar)  Preferred Qualifications Experience working on wearables, small devices, or resource-constrained systems  Familiarity with Zephyr OS or other RTOS environments  Experience with Bluetooth Low Energy (BLE)  Exposure to regulated environments (FDA, ISO-9000, or similar)  Strong adaptability and willingness to take on diverse technical challenges  Nice-to-Have Skills Experience with assembly language  Additional electrical engineering skills:  Basic circuit design  Reading schematics