Firmware Engineer

Salient Motion • Torrance, CA

48d • Onsite

About The Position

We are seeking a Senior Embedded Firmware Engineer to join our team and lead the development of secure, high-performance embedded software for aerospace and defense systems. The ideal candidate brings deep expertise in embedded design, network protocols, and secure communication, and thrives in an environment where precision and reliability are paramount. This role is onsite (≥ 4 days per week) and requires U.S. citizenship due to the nature of our defense-related projects.

Requirements

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Computer Science, or related field
• Proven experience in embedded system design and firmware development (C/C++)
• Strong background with STM32 microcontrollers and RTOS (FreeRTOS, ThreadX)
• Hands-on experience with lwIP TCP/IP stack, MQTT, and TFTP/FTP protocols
• Familiarity with WiFi modules, Ethernet interfaces, and driver integration
• Strong knowledge of secure communication standards (TLS, WPA3, PKI, TrustZone, Secure Boot, OTA updates)
• Proficiency in debugging and network analysis tools
• U.S. citizenship required; ability to work on defense-related projects

Nice To Haves

• Experience with aerospace-certified microcontrollers and compliance standards
• Knowledge of ARINC 853 (CSMIM) and ARINC 615A
• Prior defense, aerospace, or safety-critical system development experience

Responsibilities

• Architect, design, and implement embedded firmware for STM32 microcontrollers and aerospace-certified platforms
• Develop, optimize, and maintain RTOS-based applications (FreeRTOS, ThreadX)
• Integrate WiFi modules and Ethernet interfaces, including driver development (ubxlib, NXP SDK, STM32 MAC/PHY)
• Implement and debug network protocols including lwIP TCP/IP, MQTT (v5 preferred), and TFTP/FTP
• Ensure robust and secure data communication using TLS, WPA3, PKI, and certificate-based methods
• Support secure boot processes, firmware over-the-air (OTA) updates, and TrustZone-based security features
• Apply best practices in debugging using JTAG, logic analyzers, Wireshark, and MQTT Explorer
• Contribute to compliance with aerospace standards, including ARINC 853 (CSMIM) and ARINC 615A
• Collaborate with cross-functional teams in hardware, systems, and product engineering to deliver high-quality solutions

Benefits

• We offer competitive compensation + equity
• Exceptional healthcare benefits, Medical is 100% covered by the company
• Flexible PTO
• 401K
• More to come!

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 1-10 employees