Senior Firmware Engineer

Leidos seeks a Senior Digital/Embedded Firmware Engineer to design and deliver mission-critical solutions for national security, health, and engineering customers. In this role, you will architect, implement, and optimize embedded firmware for advanced hardware platforms, enabling reliable real-time performance and secure operation. You will collaborate closely with multidisciplinary teams in systems, hardware, and cybersecurity to integrate and validate solutions from concept through deployment. Responsibilities include developing C/C++ firmware on microcontrollers and SoCs, implementing communication protocols, performing rigorous testing, and troubleshooting complex hardware/software interactions. You'll contribute to requirements definition, documentation, and continuous improvement of engineering practices. At Leidos, you will work in a mission-driven, inclusive, and collaborative culture with flexible work options, strong ethics, and significant opportunities for professional growth and real-world impact.

Responsibilities

• Design, develop, and optimize digital and embedded firmware for mission-critical systems
• Collaborate with hardware, systems, and cybersecurity teams to integrate and validate solutions
• Implement real-time control, communication, and diagnostic features on embedded platforms
• Perform code reviews, unit testing, and integration testing to ensure reliability and performance
• Troubleshoot and resolve firmware defects and hardware/software interface issues
• Contribute to system architecture, requirements analysis, and technical documentation
• Apply secure coding practices and support certification or compliance activities for government clients
• Mentor junior engineers and share best practices within a collaborative, agile environment

Required Skills

• Embedded CC++RTOS development
• Microcontroller and So
• C programming
• Digital communication protocols (SPI, I2
• C, UART, CAN, Ethernet)
• Real-time systems design
• Firmware debugging and optimization
• Secure coding for embedded systems
• Version control (Git)
• Hardware bring-up and board-level troubleshooting