A fantastic opportunity has arisen for an experienced Senior Mission Operations Engineer to join a growing and dynamic space engineering team in Harwell, supporting current and future orbital missions. This position offers the chance to take a leading role in all phases of mission operations, from feasibility and early development, through LEOP, routine operations, and end-of-life management. It’s a broad and varied role that combines responsibilities across mission planning, spacecraft operations, systems engineering, and mission management. You’ll be part of a small, highly skilled team developing and operating next-generation space missions — with the freedom to innovate, drive improvements, and shape the operational approach across a growing fleet of spacecraft. For this role we can consider visa sponsorship and relocation support. What You’ll Do Act as an operations technical lead across multiple missions and projects. Provide mentorship and guidance to less experienced operations engineers. Perform real-time spacecraft operations during routine and critical mission phases. Develop and maintain mission operations procedures, validation tests, and tools. Contribute to planning, scheduling, and coordination with spacecraft engineering, flight dynamics, and ground systems teams. Prepare mission documentation, including user manuals and operations plans. Support development of mission operations conce...