Senior Firmware Engineer; C#​/C++

Tucson, United States | Posted on 05/13/2026

Job Duration:
Long Term Contract (Possibility Of Extension & FT Conversion)

Rate: $95-$98/hr on W2

Company Benefits:
Medical, Dental, Vision, Paid Sick leave, 401K

We are seeking a highly skilled Senior Firmware Engineer to join our Tucson Agile Release Team. The ideal candidate will have strong expertise in embedded C/C++ development, hardware-software integration, and automated hardware validation. This role involves designing scalable firmware architectures, developing low-level drivers, and collaborating with cross-functional engineering teams to deliver reliable embedded solutions for real-world systems.

• Design, develop, and optimize embedded firmware using C/C++ for microcontroller and RTOS-based systems
• Develop low-level drivers and middleware for sensors, actuators, and communication interfaces
• Build and maintain Python-based automated test frameworks and Hardware-in-the-Loop (HIL) validation systems
• Troubleshoot hardware/software interactions using JTAG/SWD debuggers, oscilloscopes, and logic analyzers
• Participate in Agile/SAFe planning, backlog refinement, and technical design discussions
• Collaborate with Electrical, Mechanical, and Systems Engineering teams for end-to‑end system integration
• Conduct code reviews, technical investigations, and firmware demonstrations on target hardware
• Ensure firmware reliability, scalability, and compliance with system architecture standards

• Bachelor’s degree in Computer Engineering, Electrical Engineering, Computer Science, or related field
• Strong professional experience in embedded firmware development using C/C++
• Experience with microcontrollers such as ARM Cortex-M, ESP
  32, or similar platforms
• Hands‑on experience with communication protocols including I2C, SPI, UART, CAN, or USB
• Strong understanding of embedded system architecture, memory management, interrupts, and state machines
• Experience debugging embedded systems using JTAG/SWD tools, logic analyzers, and oscilloscopes

• Experience with Python scripting, automation, or test harness development
• Familiarity with RTOS platforms such as FreeRTOS or Zephyr
• Experience in Agile or SAFe development environments
• Prior experience mentoring engineers or leading firmware development efforts

Embedded C/C++ | Firmware Development | ARM Cortex-M | ESP
32 | RTOS | FreeRTOS | Hardware Integration | HIL Testing | Python Automation | I2C | SPI | UART | CAN | USB | JTAG/SWD Debugging | Agile/SAFe | Embedded Systems Architecture

C#, Python, Hardware - Software Integration, Embedded, Firmware, RTOS