Satellite Power Systems Engineer

Darwin Space are currently hiring for a Satellite Electrical Power Systems Engineer in Toulouse.

Key Responsibilities

• Develop and maintain detailed requirements, architecture, and interface documents for the power subsystem
• Design and evaluate solar array, battery, and power distribution systems aligned with mission parameters
• Conduct comprehensive power budgeting and sizing analyses for all mission phases, including contingency planning
• Model, simulate, and perform worst-case scenario analyses to validate system resilience
• Select and qualify components suitable for space environments, considering radiation, atomic oxygen impacts, and thermal factors
• Support manufacturing, assembly, integration, and testing activities for the power subsystem
• Lead subsystem and system-level testing, including functional, thermal vacuum, and vibration assessments
• Facilitate design reviews (Preliminary Design Review, Critical Design Review, Test Readiness Review) and ensure system readiness
• Collaborate with multidisciplinary teams to optimize system efficiencies and perform trade‑off studies
• Participate in launch support and monitor on‑orbit power performance, troubleshooting as needed

Essential Skills & Experience

• Minimum of 5 years’ experience in spacecraft or satellite power subsystem engineering, with at least one smallsat mission successfully delivered to orbit
• Robust knowledge of spacecraft electrical systems, including solar array and battery technologies
• Proven experience with power budgeting, system modelling, and simulation tools
• Familiarity with space‑qualified components and thermal/radiation design considerations
• Practical experience in integration and testing within cleanroom environments
• Strong problem‑solving abilities, with the capacity to work effectively within agile, cross‑disciplinary teams
• Excellent communication skills to liaise with suppliers, subsystem teams, and mission stakeholders

Desirable Skills & Experience

• Hands‑on experience with power electronics design and fault analysis
• Knowledge of advanced battery chemistry and thermal management solutions
• Understanding of satellite system trade‑offs and mission optimization strategies
• Experience with space authorities’ standards and certification processes