- Technical responsible for the Electrical Power Subsystem for a given project from pre-development up to in-orbit commissioning. - Electrical Power Subsystem design authority towards customers and subcontractors - Design, sizing and trade-offs of electrical power subsystems for satellite applications (encompassing e.g. solar generators, batteries, power conditioning & distribution units, solar array drive mechanisms) - Assessment and evaluation of electrical power subsystem relevant concept trades across feasibility and pre-development studies - Analysis of system requirements and flow-down to electrical power subsystem requirements - Definition and maintenance of electrical power subsystem units' specifications - Proposal preparation including evaluation of subcontractor proposals - Production and maintenance of EPS design and verification documentation (design descriptions, analyses, requirements specifications, test specifications and test reports) - Responsible for electrical power subsystem reviews - Support to system and other subsystem reviews - Cooperation with project team, system engineering and other divisions - Development of the electrical power subsystem verification, on-site support during testing phase (Initial functional and performance tests, environmental test campaign, launch camapign