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Sr. Avionics Engineer

Fortastra - Torrance, CA, United States - In-office - posted 2026-09-24

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Salary: USD 130,000 - 170,000 / annual

Fortastra is building next-generation autonomous orbital control systems for national security space applications. The company is seeking a Senior Avionics Engineer to design and deliver spacecraft avionics hardware and embedded systems through the full product lifecycle. In this hands-on role, you will own the complete lifecycle of avionics hardware from concept and architecture through PCB design, bring-up, integration, and flight support. Key responsibilities include: - Architecting avionics subsystems and designing flight computers and support boards, including processor, memory, power management, sensor/actuator interfaces, and communications interfaces. - Selecting and integrating electrical components (MCUs/SoCs, FPGAs, memories, sensors, transceivers, power devices) for reliable operation in demanding orbital environments. - Defining and implementing board-level interfaces and data buses (CAN, SPI, I2C, UART, Ethernet, SpaceWire) across the spacecraft avionics network. - Developing and maintaining Interface Control Documents (ICDs) for avionics connections to GNC, power, propulsion, and payload subsystems. - Bringing up new boards in the lab: writing test firmware, debugging hardware issues, and validating functionality using oscilloscopes, logic analyzers, and instrumentation. - Collaborating with embedded software and flight software engineers to integrate low-level drivers, bootloaders, and health monitoring. - Contributing to power architecture and distribution within avionics assemblies, including protections, filtering, and load management. - Applying design-for-test and design-for-reliability principles to ensure boards can be efficiently validated, qualified, and flown. Fortastra operates with a lean, elite engineering culture emphasizing high autonomy, high ownership, and direct impact. The company values technical rigor, candor, and disciplined speed with uncompromising flight-readiness standards. You will work in a small, high-impact team where exceptional engineers design, test, and deliver mission-critical systems end-to-end. The role requires 5 days on-site in Torrance, CA. U.S. citizenship is required. QUALIFICATIONS & REQUIREMENTS: - B.S. or M.S. in Electrical Engineering, Computer Engineering, or closely related discipline. - 5+ years of experience as a design engineer owning electrical/avionics hardware through its full lifecycle (spacecraft, automotive EVs, robotics, defense, or similar domains). - Strong EE design experience, including schematic capture and PCB design/review for complex digital and mixed-signal boards. - Hands-on experience bringing up boards: flashing firmware, exercising interfaces, and debugging hardware at the bench. - Proficiency with embedded systems and common serial buses (CAN, SPI, I2C, UART); familiarity with data acquisition or telemetry systems. - Experience with C/C++ and Python in Linux-based environments for hardware bring-up, test automation, or tooling. - Familiarity with FPGA-based designs (RTL design, integration, or constraints) is a plus but not required. - Experience in at least one mission-critical domain (spacecraft, launch vehicles, automotive EVs, robotics, defense, or industrial control). - Comfort working across disciplines and collaborating closely with software, mechanical, and systems engineers.

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