Senior Firmware Engineer, onsite | 1056906

OUR GOAL: 
Treat our consultants and clients the way we would like others to treat us!
 
Interested in joining our team? Check out the opportunity below and apply today!
  
We are looking for a Senior Firmware Engineer contractor to join our client’s team in Tucson. In this role, you will use your expertise in C/C++ to design and build robust embedded solutions that sit at the intersection of hardware and software. You’ll be a critical part of a cross-functional team, taking features from low-level drivers to final system integration, ensuring our code is performant, memory-efficient, and rock-solid.

Key Responsibilities

• Embedded Design: Architect and implement firmware features using C/C++, ensuring designs are optimized for constrained environments (CPU, memory, and power).
• Hardware-Software Integration: Develop low-level drivers and middleware to interface with sensors, actuators, and communication peripherals.
• Automated Hardware Validation: Build and maintain automated testing frameworks—primarily using Python—for Hardware-in-the-Loop (HIL) testing and system validation.
• Agile Execution: During PI and iteration planning, break down complex hardware-software features into manageable tasks, accounting for hardware dependencies and lead times.
• Technical Governance: Lead deep-dive code reviews and technical spikes to ensure firmware aligns with safety standards and system-level architecture.

Agile Planning & Collaboration

• Synchronized Development: Participate in technical discussions during Program Increment (PI) planning, specifically addressing hardware/firmware dependencies.
• Backlog Refinement: Organize and prioritize the team backlog, managing technical debt and balancing feature velocity with system stability.
• Cross-Functional Bridge: Work closely with Electrical and Mechanical Engineering teams to translate hardware requirements into technical firmware reality.
• System Demos: Demonstrate firmware progress on target hardware to stakeholders, explaining technical logic and timing constraints clearly.

Required Technical Skills

• 5+ years exp, embedded firmware/software experience
• Good understanding of developer lifecycle. 
• C/C++ Mastery: Extensive professional experience in embedded C/C++ development for microcontrollers (ARM Cortex-M, ESP32, etc.) or RTOS-based systems.
• System Architecture: Ability to design maintainable, scalable firmware architectures including interrupt handling, memory management, and state machines.
• Low-Level Protocols: Hands-on experience with communication interfaces like I2C, SPI, UART, CAN, or USB.
• Debugging: Proficiency using JTAG/SWD debuggers, logic analyzers, and oscilloscopes to troubleshoot hardware-software interactions.

Preferred Experience

• Python for Tools: Experience using Python for scripting, data analysis, or building test harnesses.
• RTOS & Bare Metal: Familiarity with FreeRTOS, Zephyr, or similar real-time operating systems.
• Agile Proficiency: Experience working within the Scaled Agile Framework (SAFe) or similar iterative environments for hardware development.
• Mentorship: A track record of leading firmware projects or guiding junior engineers through complex system integrations.

Soft Skills

• Technical Articulation: The ability to explain complex timing issues or register-level bugs to non-technical stakeholders.
• Relentless Troubleshooting: A methodical, “detective-like” approach to solving intermittent hardware/software issues.
• Reliability Mindset: A commitment to writing code where “it works on my machine” isn’t enough—it has to work on the silicon every single time.

Reference: 1056906
  
Don’t meet every single requirement? Studies have shown that women and people of color are less likely to apply to jobs unless they meet every qualification. At Revel IT, we are dedicated to building a diverse, inclusive, and authentic workplace, so if you’re excited about this role, but your experience doesn’t align perfectly with every qualification in the description, we encourage you to apply anyway. You might be the right candidate for this or our other open roles!   

Revel IT is an Equal Opportunity Employer. Revel IT does not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, non-disqualifying physical or mental disability, national origin, veteran status or any other basis covered by appropriate law. All employment is decided on the basis of qualifications, merit, and business need.  

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