Firmware Engineer

Co-Diagnostics Inc (Co-Dx) is a Salt Lake City–based molecular-diagnostics company developing an at-home and point-of-care PCR platform to detect viruses and other pathogens. We’re looking for a hands-on Firmware Engineer to drive low-level software development on ESP32 and STM32 microcontrollers, write robust C code, and help bring our next-generation diagnostic instruments from prototype to production.

Role & Responsibilities

• Design, implement and maintain embedded firmware in C (and C++) on ESP32 and STM32 platforms
• Integrate and configure on-board peripherals (GPIO, ADC, DAC, PWM), sensors, bar-code readers and communication interfaces (I²C, SPI, UART, CAN)
• Develop and debug FreeRTOS (or similar RTOS)–based tasks and drivers
• Collaborate with hardware engineers to define board-level requirements, review schematics and troubleshoot hardware–software interactions
• Implement secure bootloaders, over-the-air (OTA) update mechanisms, and in-field diagnostics
• Write and maintain unit tests, automated hardware-in-the-loop tests, and CI pipelines for firmware validation
• Produce clear technical documentation: requirements specs, design docs, API guides and user manuals
• Support manufacturing and validation teams by debugging issues on the production line and improving test fixtures
• Follow quality-management procedures to ensure firmware meets FDA/ISO requirements for medical devices

Qualifications

Education

• Bachelor’s degree in Electrical Engineering, Computer Engineering or related field (Master’s a plus)

Experience & Skills

• 3+ years of professional embedded-firmware development in C (C++ experience is a bonus)
• Hands-on experience programming and debugging ESP32 (Espressif IDF) and/or STM32 (STM32CubeMX/HAL)
• Strong understanding of real-time operating systems (FreeRTOS or equivalent) and interrupt-driven architectures
• Proficient with on-chip peripherals: ADC, PWM, UART, SPI, I²C, watchdog timers, DMA
• Familiarity with JTAG/SWD debuggers (e.g., Segger J-Link) and oscilloscopes/logic analyzers for hardware bring-up
• Experience setting up and maintaining Git-based workflows, code reviews, and continuous integration for firmware
• Ability to read and interpret electrical schematics and data-sheets, collaborate with hardware teams on design reviews
• Excellent problem-solving skills and the ability to diagnose complex hardware-software interactions
• Clear written and verbal communication skills; comfortable working in cross-functional teams

Certifications (optional)

• Certified Embedded Systems Engineer (CESE)
• ARM Accredited Engineer

Working Conditions

• On-site in our Salt Lake City office and lab
• Standard business hours, with occasional early or late support during critical hardware bring-up or production ramp
• Remote work is not available for this role

Physical Requirements

• Extended periods at a workbench or computer station
• Ability to lift and manipulate small lab instruments (up to 25 lbs)
• Occasional bending, stooping and fine-motor handling of small components

We offer competitive salary, full benefits including medical/dental/vision, 401(k) matching, and a collaborative, innovation-driven culture.

Our EEO Policy

Co-Diagnostics is an equal opportunity employer (M/F/D/V). We recruit, employ, train, compensate, and promote without regard to race, religion, creed, color, national origin, age, gender, sexual orientation, marital status, disability, veteran status, or any other basis protected by applicable federal, state, or local law.

Co-Diagnostics participates in E-Verify. No immigration-related sponsorships are available.

Job Type: Full-time

Pay: $90,000.00 - $110,000.00 per year

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Employee assistance program
• Flexible schedule
• Flexible spending account
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Vision insurance

Ability to Commute:

• Salt Lake City, UT 84115 (Required)

Ability to Relocate:

• Salt Lake City, UT 84115: Relocate before starting work (Required)

Work Location: In person