Senior Embedded Firmware Engineer

Senior Embedded Firmware Engineer (Safety-Critical Systems) Location: San Francisco, CA | Los Angeles, CA | Washington, DC Training Requirement: Candidates must complete an initial 1-month onsite training program in Kearneysville, WV before transitioning to their assigned office location. About the Role We are seeking a Senior Embedded Firmware Engineer to develop firmware for a safety-critical embedded system integrated with advanced aerospace and defense hardware. This role offers end-to-end ownership of firmware development, from board bring-up and driver implementation through qualification, testing, and deployment. You\'ll work closely with hardware engineers in a highly collaborative, hands-on environment where rapid iteration, reliability, and testability are essential. Responsibilities Design, develop, and maintain embedded firmware for ARM Cortex-M or comparable microcontroller platforms Own firmware architecture, including device drivers, state machines, communication interfaces, command handling, and programming workflows Create host-testable firmware and simulation frameworks that enable validation without requiring target hardware Collaborate with hardware engineers on board bring-up, peripheral integration, timing analysis, and debugging Implement and validate communication protocols and peripheral interfaces Support environmental qualification activities, including thermal, EMC, and vibration testing Define and maintain firmware safety requirements, verification strategies, and supporting documentation Contribute to firmware reliability, security, maintainability, and performance improvements Required Qualifications 5+ years of professional embedded firmware development experience Strong experience with ARM Cortex-M or similar embedded platforms Advanced proficiency in C, C++, or Rust Experience with: Interrupts, DMA, clocks, timers, memory maps, linker scripts, and low-power modes I²C, SPI, UART, and USB communications Hardware debugging using oscilloscopes and logic analyzers State machine design for real-world embedded systems Board bring-up and low-level hardware integration Host-based testing and firmware validation methodologies Professional written and verbal English communication skills Preferred Qualifications Embedded Rust experience, including Embassy, embedded-hal, RTIC, defmt, probe-rs, or no_std development Modern embedded C++ (C++17/C++20) Experience with FreeRTOS, Zephyr, or asynchronous embedded architectures Safety-critical firmware development experience (ISO 26262, DO-178C, IEC 61508, or similar) Bootloader, DFU, secure boot, or OTA update implementation UAV, drone, FPV, MAVLink, INAV, or related aerospace systems experience Experience with C FFI or SDK integration Work Environment Collaborative, hardware-focused engineering culture Frequent interaction with real hardware and rapid development cycles High degree of technical ownership and responsibility Focus on quality, reliability, testability, and safety Additional Requirements Ability to complete a mandatory 1-month onsite training period in Kearneysville, West Virginia Ability to work onsite from San Francisco, Los Angeles, or Washington, DC following training Must be legally authorized to work in the United States Embedded Firmware Engineer, Senior Firmware Engineer, Embedded Software Engineer, ARM Cortex-M, C, C++, Rust, Embedded Systems, Board Bring-Up, Device Drivers, Real-Time Systems, FreeRTOS, Zephyr, Embedded Rust, Safety-Critical Software, Aerospace, Defense Technology, UART, SPI, I2C, USB, Bootloader, Secure Boot, OTA Updates, Hardware Debugging. #J-18808-Ljbffr BlackStar