Spacecraft Systems Engineer (Aerospace)

Location: Hybrid role based at hirify.global UK in Harwell, Oxfordshire, Didcot

Company

hirify.global develops spacecraft and on-orbit servicing technologies for the secure and sustainable development of space, serving government and commercial clients.

What you will do

• Develop spacecraft mission and system designs, balancing mission needs and achievable technical solutions.
• Derive, allocate, verify, and maintain traceability for system requirements.
• Perform system-level trade studies, design assessments, and technical analyses.
• Maintain spacecraft technical budgets covering mass, power, data, and propellant.
• Own system-level documentation and interfaces, including CONOPS, V&V plans, DDVPs, ICDs, space-to-ground, TMTC, and related artefacts.
• Support spacecraft integration, verification, environmental testing, mission reviews, operations, and in-orbit commissioning.

Requirements

• At least 2 years of experience in satellite systems engineering.
• Understanding of the critical subsystems comprising a satellite mission.
• Experience with requirements derivation, verification, and traceability.
• Ability to perform complex technical trade-offs and coordinate activities across subsystem engineering teams.
• Excellent communication skills and confidence presenting technical analyses to internal and external stakeholders.
• Comfortable using Microsoft Word, Excel, and PowerPoint.

Nice to have

• Knowledge of attitude and orbit control systems and experience with satellite-level AIT.
• Exposure to system FFTs, STB, TMTC, MIB, mission operations, and ESA missions.
• Experience with GMAT, Orekit, Python, MATLAB, or other analysis tools.
• Experience with FMECA, FDIR, fault-tree analysis, or reliability engineering.

Culture & Benefits

• Flexible working around core hours, with an optional 9/75 working pattern.
• 25 days of annual leave, increasing yearly up to 28 days, plus 8 bank holidays.
• Life insurance, long-term sick pay, and private healthcare.
• Relocation allowance and access to a modern office and cleanroom facility.
• Inclusive, diverse, and supportive working environment with regular social events.