Senior Digital Comms Payload Engineer
Open Cosmos
Didcot, United Kingdom · Pallini, Greece · Barcelona, Spain · Porto, PortugalEngineerPosted May 6, 2026
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CRO
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SATCOM (Broadband and Narrowband)
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Multiple locations
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Hybrid
Senior Digital Comms Payload Engineer
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Aim high, go beyond! At Open Cosmos we are solving the world’s biggest challenges from space, providing businesses, governments and researchers access to more readily available information than ever before - ready for the challenge? Then read on…The Satcom team is responsible for the design, delivery and performance of Open Cosmos’ satellite communications services, spanning the space segment, ground infrastructure and global connectivity.Joining our Satcom Solutions team, you’ll play a key role in developing the digital core of our communication payloads, ensuring performance, scalability, and resilience across complex satellite systems.What will you be doing?Defining digital subsystem architectures across satellite payload and ground communication systemsTranslating high-level product and system requirements into scalable digital processing capabilitiesCollaborating across payload, network, air interface, and security domains to deliver cohesive digital designsSupporting future waveform and communication standard evolution including DVB-S2X and 3GPP NTNAssessing emerging FPGA, ASIC, SoC, and chiplet technologies for suitability within space-grade environmentsLeading Digital-in-the-Loop (DIL) modelling and prototyping activities to validate performance, latency, and power targetsDeriving compute resource requirements including throughput, memory bandwidth, LUT utilisation, and DSP allocationDefining and governing high-speed digital interfaces including JESD204, SpaceWire, and high-speed EthernetSupporting the integration of secure hardware capabilities including encryption, secure boot, and resilience mechanismsTranslating architectural concepts into actionable specifications and interface control documentation for implementation teamsProviding technical oversight across firmware and hardware development activities to ensure alignment with system intentWhat You’ll bring Strong understanding of digital system architecture and high-performance processing within communication systemsCapability to define and...