Senior Firmware Engineer, Vehicle

K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by over $1 billion in total funding from leading investors including Altimeter Capital, ICONIQ, Kleiner Perkins, Lightspeed Venture Partners, Redpoint Ventures, and T. Rowe Price — and with over $1 billion in signed contracts across commercial and US government customers, we're mass-producing the highest-power satellite platforms ever built for missions from LEO to deep space. The rise of heavy-lift launch vehicles is shifting the industry from an era of mass constraint to one of mass abundance, and we believe this new era demands a fundamentally different class of spacecraft. Engineered to survive the harshest radiation environments and to fully capitalize on today's and tomorrow's massive rockets, K2 satellites deliver unmatched capability at constellation scale and across multiple orbits. With multiple launches in 2027 and plans to scale to 100 satellites a year, we're Building Bigger — helping develop the solar system and build toward a Kardashev Type II (K2) civilization. If you are a motivated individual who thrives in a fast-paced environment and you're excited about contributing to the success of a high-growth Series D-funded company, we'd love for you to apply. The Role We are seeking a Senior Embedded Software Engineer to develop and enhance low‑level embedded software across the satellite platform. As a Senior Embedded Software Engineer, you’ll work closely with custom hardware to develop low-level software that brings our spacecraft to life. From initial hardware bring-up through fully integrated, flight-ready systems. You’ll build embedded software that interfaces directly with sensors, actuators, and critical spacecraft subsystems, including propulsion, attitude control, and power. Your work will primarily be written in Rust and deployed on microcontrollers across our platform, requiring strong fundamentals in real-time systems, resource-constrained environments, and fault-tolerant design. Responsibilities Create embedded software architecture for real-time, fault tolerant control of a 20kW+ spacecraft. Develop embedded software for new hardware integrated throughout the satellite. Extend embedded software applications for managing hardware on some of the largest satellites that have ever flown. Scale embedded software across different satellite products by building software infrastructure and development processes. Debug complex HW/FW issues using traditional debug tools (JTAG/SWD, logic analyzers, oscilloscopes), and custom debug hooks both on the ground and in orbiting satellites. Mentor a diverse team of software engineers and instill embedded software best practices. Qualifications 5+ years of experience developing embedded software in either Rust, C, or C++, targeting microcontrollers (ARM, RISC-V, or similar). Strong understanding of your favorite microcontroller’s memory subsystem, instruction pipeline, interrupt and DMA controller. Experience collaborating with hardware engineering teams. Demonstrated ability to debug complex hardware/firmware issues. Nice to haves Experience using Rust in hard real-time systems, either bare-metal or RTOS environments. Experience developing peripheral drivers without use of the vendor’s software. Experience with spacecraft flight software development. Experience maintaining embedded software across multiple product revisions. Experience with software verification and testing methods. Experience with software and network performance analysis and debugging. <li data-leveltext="" data-font="Symbol" data-listid="3" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"hybridMultilevel"}" data-ar