Principal RF Engineer

Overview

In this role you will own RF and mixed-signal hardware from architecture to bring-up, delivering high-performance boards for demanding environments. You will collaborate with FPGA, embedded software and signal-processing teams to meet system-level targets. You’ll work hands-on across the full RF chain, from front-end design to high-speed ADC/DAC integration, with engineering focus on robustness outside controlled labs. Bristol-based with hybrid work and UK SC clearance eligibility, offering technical ownership and meaningful impact. You will help shape reliable, high-performance RF hardware for complex applications.

Responsibilities

• RF front-end and signal-chain design
• Mixed-signal hardware incorporating high-speed ADCs and DACs
• Multi-layer RF PCB and schematic design
• RF component selection and integration
• Hardware bring-up, debugging and optimisation
• RF performance measurement using VNAs, spectrum analysers, signal generators and oscilloscopes
• Integration with FPGA and SDR platforms
• End-to-end ownership from architecture to validation

Key requirements

• RF analogue hardware and signal-chain design
• MIXers, amplifiers, filters, oscillators and gain stages
• High-speed ADC/DAC integration
• RF and mixed-signal PCB design using Altium, KiCad or similar
• RF layout, impedance control, grounding, isolation and signal integrity
• Hardware bring-up and laboratory debugging
• RF performance metrics including gain, noise figure, bandwidth and dynamic range

• Altium
• KiCad
• RF PCB layout and schematic design
• Impedance control and signal integrity
• RF measurement techniques
• High-speed ADC/DAC integration

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