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Digital Payload Architect

Job in Portsmouth, Hampshire County, PO5, England, UK
Listing for: Capgemini Engineering
Full Time position
Listed on 2026-01-22
Job specializations:
  • Engineering
    Systems Engineer, Telecoms Engineering, Electrical Engineering, Electronics Engineer
Job Description & How to Apply Below

Responsibilities

  • Analysis of payload system architecture and end‑to‑end telecom systems, performing performance trade‑offs at equipment level and at payload level, complete with preparation of analysis, review and compilation of written reports and presentations for our customers.
  • Support the payload test campaigns and the analysis of test results, working hand‑in‑hand with the Assembly, Integration and Test operations team (clean‑room environment).
  • Extensive use of modelling tools such as MATLAB and Python for in‑house developed analysis modelling, Keysight and Microsoft Office and G Suite for presentation of technical information to the customer and customer reviews.
  • Learn cutting‑edge satellite and payload technologies, telecommunication satellite missions, and key performance parameters such as G/T and EIRP to support ongoing and future satellite projects, proposals and studies.
Qualifications
  • Educated to a degree level or equivalent within Electrical / Electronic Engineering, Telecommunications or Communications, Satellite Systems Engineering, Mathematics or Physics.
  • Experience with modelling software used for end‑to‑end RF communication chains, e.g. MATLAB, Simulink, System Vue, etc.
  • Proficiency with programming languages (e.g. Python, MATLAB, Octave, Visual Basic).
  • Solid theoretical background on digital communications and proven ability to apply the theory to solve practical problems, perhaps through university modules.
Desired Experience
  • Systems Engineering, Microwave / RF Engineering or other wireless technology.
  • RF equipment, equipment performances, test equipment and test techniques.
  • RF Systems, Antenna Systems, Satellite Communication Systems and Software Defined Radio / Digital Signal Processing.
  • RF communication signal design techniques (e.g. modulation, encoding, filtering).
Benefits and Culture
  • Possibility to work up to 45 days per year from abroad.
  • Open access to digital learning platforms.
  • Active employee networks promoting diversity, equity and inclusion like Out Front, Cap Ability or Women@Capgemin.
  • Capgemini is proud to be a Disability Confident Employer (Level
    2) under the UK Government's Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who declare they have a disability and meet the minimum essential criteria for the role. Please opt in during the application process.
  • All roles will require a level of security clearance; BPSS OR Security Clearance OR Developed Vetting.
  • This is an onsite role requiring five days a week in the Portsmouth office.
  • You can bring your whole self to work. At Capgemini, building an inclusive future is part of everyday life and will be part of your working reality.
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