Staff Firmware/Embedded Software Engineer - St. Louis, MO
About The Position
The Staff Firmware Engineer serves as both a key contributor and technical leader in the architecture, design, development, testing, and deployment of firmware for high-volume embedded electronic products. This role is responsible for participating in project planning activities, reviewing and evaluating code and technical deliverables, and supporting product deployment by helping resolve customer technical issues. The engineer will also function as a technical expert when required and play an active role in driving complex design efforts, improving development processes, and mentoring engineering team members.
Requirements
- Bachelor’s degree - Computer Engineering, Electrical Engineering, Computer Science, or a related technical field.
- 7+ years of embedded systems development experience using C/C++.
- 5+ years of experience developing firmware in embedded RTOS environments.
- Strong understanding of ARM Cortex or similar microcontroller architectures.
- Proficiency with hardware interfaces such as SPI, UART, I²C, ADC/DAC, GPIO, and timers.
- Experience developing multi-threaded firmware and managing concurrency.
- Advanced debugging proficiency using oscilloscopes, logic analyzers, emulators, and JTAG tools.
- Experience with Git, defect-tracking systems, and CI/CD workflows.
- Strong communication skills with the ability to collaborate effectively across teams.
Nice To Haves
- Master’s degree in engineering or related technical discipline.
- Experience with RF/wireless technologies such as Wi-Fi, BLE, and ZigBee.
- Understanding of networking protocols including IPv4/IPv6, TCP/UDP, CoAP, and MQTT.
- Experience with embedded security technologies, including encryption, secure boot, and key management.
- Background in smart grid, IoT, or utility industry systems.
- Experience performing structured root-cause analysis (e.g., 5 Whys, fishbone, 8D).
- Ability to develop internal tools, diagnostics, or automation scripts.
- Experience with Python and/or Rust programming languages
Responsibilities
- Architect, design, and implement embedded firmware in C for microcontroller-based systems.
- Develop and maintain firmware requirements, interface specifications, and state/behavior models.
- Create and execute unit, integration, and automated tests to ensure high reliability and functional correctness.
- Optimize firmware for performance, memory utilization, and power efficiency.
- Ensure designs comply with applicable regulatory standards such as FCC, UL, and ANSI.
- Serve as the technical lead for mid-complexity firmware initiatives.
- Mentor junior and mid-level engineers in architecture principles, design patterns, and embedded development best practices.
- Participate in and lead technical design reviews and code reviews.
- Support project planning through effort estimation, risk identification, and task definition.
- Contribute to structured firmware development processes, coding standards, and continuous improvement efforts.
- Perform root-cause analysis to resolve manufacturing, field, and deployment issues.
- Collaborate with cross-functional teams on system-level integration, validation, and troubleshooting.
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
