System Engineer - CCSDS & LunaNet (LLD Focus) Overview We are seeking a System Engineer with strong CCSDS and LunaNet experience to support the detailed design and implementation of space communication architectures . The role focuses on low-level system design, interface definition, and protocol implementation , rather than high-level architecture. Key Responsibilities Develop Low-Level Design (LLD) documentation for space communication systems.

Implement and define interfaces aligned with CCSDS standards .

Support LunaNet-compatible architecture and protocol implementation .

Define detailed message flows, protocol stacks, and interface control documents (ICDs) .

Work with software, network and flight/ground segment teams to ensure interoperability and standards compliance .

Support system integration, verification and validation activities.

Contribute to simulation and test scenarios for deep-space communications .

Analyse link performance, data routing and network behaviours within LunaNet environments.

Required Skills & Experience Strong experience with CCSDS standards (eg space packet protocol, CFDP, DTN/BP, TM/TC).

Experience with LunaNet architecture and interoperability concepts .

Proven work on Low-Level Design (LLD) and interface definition.

Experience with deep-space communications or space networking systems .

Familiarity with Delay/Disruption Tolerant Networking (DTN) .

Experience writing ICDs, protocol specifications and interface documentation .

Experience supporting system integration and test campaigns .

Desirable Experience with NASA or ESA communication architectures .

Knowledge of optical communications or advanced space networking .

Experience with space mission ground/flight systems integration

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