- Design, develop and accommodate technical baseline solutions of satellite-based quantum communication systems on the basis of customer requirements and budgets - Technically coordinate a multidisciplinary engineering team in order to integrate quantum and classical communication, in particular with reference to: - Quantum System Architecture Definition and Justification - Interface Definition - Development Logic Definition - Coordination of related performance analysis - Lead the engineering team effort for design trade-offs between the involved disciplines such as: thermal, structural, mechanical, optical and electrical - Collaborate closely with technical management and other engineering disciplines (e.g. Performance Analysis, V&V Engineering, Subsystems Engineering and Spacecraft Systems Engineering) - Document the system architecture and creating technical specifications of systems and subsystems - Derive security system requirements specifications and develop security concepts - Ensure proper flow-down and allocation of lower-level subsystem requirements and budgets and maintain them up to date - Definition of study logic, work breakdown and work packages - Develop prototypes and carry out tests to validate the system architecture - Management of work packages and sub-projects - Conducting feasibility studies and risk analyses - Act as an interface with the customer and lead technical discussions with regard to understanding the customer's requirements, their feasibility and justification that the system baseline meets the customer's requirements