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Senior Embedded Software Engineer

CesiumAstro - Milton Keynes, United Kingdom - In-office - posted 2026-08-17

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CesiumAstro develops advanced communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. As a Senior Embedded Software Engineer, you will own software development across the full stack—from low-level microcontroller firmware to high-level Linux-based applications—across all phases of the product lifecycle. You will be responsible for designing, developing, and qualifying software for high-reliability systems, including Linux-based single-board computers and mission-critical microcontroller platforms. Your work will span concept through production, including product roadmaps, block diagrams, detailed design, coding, analysis, testing, qualification, and in-orbit support. The ideal candidate brings deep experience across multiple layers of the software stack: microcontrollers, low-level drivers, board support packages (BSP), end-use applications, and user interfaces. You should have proven expertise in software testing, high-reliability qualification processes, and software engineering best practices. Experience with software project management is a plus. Beyond hands-on development, you will present engineering design reviews to customers and the executive team, participate in proposal writing, and contribute to cross-functional initiatives. Excellent written and verbal communication skills are essential. This is a role for someone who thrives in a dynamic, collaborative environment and wants to work on systems that operate in space and demanding aerospace environments.

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