Satcom Payload Architect Verified today
The Satcom Team
The Satcom Team models, simulates and optimises the performance of Open Cosmos' satellite communication infrastructure across space segment, inter-satellite links, terminals and ground connectivity. You will work with digital twins, autonomous networks and large-scale constellation models to support design validation and mission planning.
What You Will Do
As Satcom Payload Architect, you will own the end-to-end technical architecture of next-generation satellite payloads, ensuring service intent, payload design and satellite implementation are fully aligned.
- Define complete payload architecture with focus on digitally processed, highly flexible and scalable solutions for LEO constellations
- Act as technical bridge between Satcom Solutions (service definition) and Satellite Infrastructure (spacecraft delivery)
- Translate service-level requirements (throughput, latency, availability) into clear, verifiable technical specifications across all payload subsystems
- Drive critical SWaP, cost and risk trade-offs, maximising performance per kilogram and watt
- Perform detailed microwave link budgets and cascade analysis under worst-case operational and thermal conditions
- Define architectures and requirements for high-gain dynamic beamforming antennas (multi-beam reflectors or APAAs), RF front-end chains (LNAs, SSPAs, frequency-agile converters), digitally regenerative payload processors supporting multiple waveforms (DVB-S2X/RCS2, 3GPP NTN) and high-data-rate inter-satellite links (optical and/or mmWave RF)
- Architect high-stability frequency generation and signal conditioning chains to support resilient PNT alternatives to GNSS
- Define passive spectrum monitoring and geolocation capabilities to detect and localise RFI and jamming
- Develop payload Concept of Operations (CONOPS), including autonomous modes, reconfiguration strategies and failure detection/recovery
- Work closely with satellite bus teams to ensure payload thermal, mechanical, electrical and data interfaces are fully aligned
What You Will Bring
- Deep understanding of satellite communication payload architectures, particularly for LEO systems
- Strong systems engineering mindset, including requirements definition, flow-down and verification
- In-depth knowledge of RF and microwave systems, including link budgets, noise figure, linearity and cascade effects
- Confidence defining antenna systems, RF front ends, onboard processors and inter-satellite link architectures
- Solid understanding of digital payloads, including DSP, SDR architectures and high-speed data conversion
- Comfort making informed trade-offs across performance, SWaP, cost and risk
- Familiarity with satellite communication standards such as DVB-S2X, DVB-RCS2 and 3GPP NTN
- Ability to work across hardware and software boundaries within complex space systems
- Capability to produce clear, structured and verifiable technical documentation
- Pragmatic, collaborative approach with strong sense of accountability
This role is based in the UK or Spain. You must have the legal right to work in your location. Please submit your CV in English.