Satellite Payload RF Systems Engineer – Innovate & Validate

SII Group; United Kingdom; Remote; GBP 70,000 - 110,000; Full time

Job summary

SII UK is seeking a skilled Payload RF Systems Engineer to lead design, analysis, integration, and validation of satellite payloads. You will work across the full project lifecycle, ensuring RF performance meets customer requirements while balancing cost, schedule, and quality.

Collaboration with engineering, procurement, manufacturing and test teams is essential. The role focuses on RF performance budgeting, frequency planning, and subsystem integration, with strong emphasis on documenting

Qualifications

• Proven RF systems engineering experience in space, satellite, aerospace, telecommunications or defence.
• Experience across the full project lifecycle from design to operational support.
• Hands-on RF performance analysis and modelling.
• Experience supporting environmental, functional and RF validation test campaigns.
• Familiarity with supplier technical management and requirements flow-down.

Responsibilities

• Perform RF performance analysis including gain, noise figure, linearity, stability, EIRP, G/T, phase noise, spurious and intermodulation assessments.
• Develop and maintain RF payload models, simulations, and performance budgets.
• Define payload architectures, frequency plans, and equipment specifications.
• Flow customer requirements through to subsystem and equipment level.
• Support supplier technical management and review component-level performance data.
• Produce RF performance reports, technical documentation, presentations, and user guides.
• Support AIT activities, including test planning, predictions, and results analysis.
• Investigate and resolve RF performance issues and non-conformances during integration and testing.
• Present technical findings at design reviews and technical review boards.
• Collaborate with systems, equipment, procurement, manufacturing, and test teams throughout the project lifecycle.

Skills

RF systems engineering

RF analysis & modelling

Payload architectures

Frequency planning

RF testing & verification

Documentation & presentations

Stakeholder management

Cross-functional collaboration

Tools

RF modelling tools

Link budget software

Job description

SII UK is seeking a skilled Payload RF Systems Engineer to lead design, analysis, integration, and validation of satellite payloads. You will work across the full project lifecycle, ensuring RF performance meets customer requirements while balancing cost, schedule, and quality.

Collaboration with engineering, procurement, manufacturing and test teams is essential. The role focuses on RF performance budgeting, frequency planning, and subsystem integration, with strong emphasis on documenting