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Title: Embedded Firmware Developer (Entry to Mid-Level)
Duration: 1- year Contract
Location:  On-Site Chelmsford, MA
Benefits: Employee benefits at 100% including Medical, PTO, Holiday Pay, 401K Plan and much more!

Role:

Our client is building a noninvasive cardiac diagnostic platform that pairs embedded firmware with desktop software. You will work in their laboratories on the device firmware, extend its features, help debug, and validate the firmware in cooperation with the software.

• Develop, maintain, and debug firmware for a Teensy 4.x-based system
• Build and manage real-time tasks using FreeRTOS
• Control and monitor hardware such as valves, sensors, and actuators
• Implement communication between the firmware and host software (serial/UART, SPI, I2C)
• Add logging and live debugging so the firmware state can be inspected in real time
• Test on real hardware and in simulation mode, and document the work
• Use Git with clear commits and code reviews

Qualifications:

• 0–3 years of embedded firmware experience (strong project or internship work counts)
• Proficiency in C/C++ for embedded systems
• Hands-on experience with Teensy 4.x (or similar ARM Cortex-M boards) and FreeRTOS
• Solid grasp of electronics fundamentals, including reading schematics, using a multimeter, oscilloscope, or logic analyzer, and working with GPIO, ADC, PWM, and timers
• Experience with Git
• Reliable, present, and curious; comfortable working with hardware on-site and accepting an essential role

Preferred Qualifications:

• Experience with medical, biomedical, or safety-critical devices
• Familiarity with signal processing or sensor data acquisition
• Basic Python or C# for testing and tooling
• Comfort with unit testing and simulation

Education: Bachelor’s degree in electrical engineering, computer engineering, or a related field

Equal employment opportunity: All qualified persons will be considered for employment without regard to race, color, religion, sex, national origin, age, marital status, familial status, gender identity, sexual orientation, disability for which a reasonable accommodation can be made or any other status protected by law. Assistance will be gladly provided upon request for any applicant with sensory or non-sensory disabilities.

Fresh Consulting is a participating E-Verify company.