Firmware Engineer

Job Summary

SPX is a diverse team of unique individuals who all make an impact. As a Firmware Engineer at CUES Inc., you will design, develop, and maintain embedded software that powers advanced robotic and inspection systems used to inspect underground infrastructure. You will collaborate with cross‑functional engineering teams to build reliable, high‑performance firmware for microcontroller and Embedded Linux platforms that support innovative inspection technologies.

While each day brings new opportunities at SPX, your core responsibilities will be:

• Design, develop, and maintain embedded C/C++ software for microcontrollers and Embedded Linux systems.
• Implement firmware for bare‑metal and Zephyr RTOS environments.
• Develop and maintain communication protocols and network interfaces for Ethernet‑connected devices.
• Collaborate with electrical and mechanical engineers to integrate firmware with robotic control systems.
• Participate in system testing, product verification, and performance optimization.
• Perform hands‑on debugging using hardware tools such as multimeters, oscilloscopes, and logic analyzers.
• Troubleshoot hardware‑software interactions in embedded systems.
• Support system‑level integration of firmware with robotics and inspection equipment.
• Document firmware architecture, design decisions, testing, and revisions according to engineering standards.
• Work closely with cross‑functional engineering teams to deliver high‑quality embedded solutions.
• Contribute to product development and engineering best practices.
• Support troubleshooting and resolution of field or system issues when needed.

We each bring something to the table, and we are looking for someone who has:

• 5+ years of experience in embedded firmware design and development.
• Strong proficiency in C and C++ for embedded systems.
• Experience working with Embedded Linux and real‑time operating systems (preferably Zephyr).
• Working knowledge of Ethernet‑based communication and TCP/IP networking.
• Strong understanding of embedded hardware, schematics, and digital/analog interfaces.

• Experience developing firmware for robotic systems or motion control applications.
• Familiarity with version control systems such as Git and modern development workflows.
• Understanding of real‑time systems and embedded bus protocols such as SPI, I2C, and CAN.
• Experience with system‑level debugging and embedded product development cycles.

• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or a related discipline.
• Hybrid schedule with approximately three days per week in the office.
• Overtime may be required to meet project schedules.
• Occasional travel to customer sites for testing or troubleshooting.
• Office and production environment; must be able to lift up to 50 lbs and use basic tools when needed.

• Generous and flexible paid time off including paid personal time off, caregiver, parental, and volunteer leave
• Competitive health insurance plans and 401(k) match, with benefits starting day one
• Competitive and performance-based compensation packages and bonus plans
• Educational assistance, leadership development programs, and recognition programs

SPX is an affirmative action and equal opportunity employer committed to making selection decisions without regard to race, color, religion, sex, sexual orientation or identity, national origin, age, disability, veteran status, or any other legally protected basis.