Signal Integrity Engineer

Oriole; Paignton; On-site; GBP 75,000 - 120,000; Full time

Job summary

Oriole seeks a PhD-level RF / High-Speed Electronics Engineer to bridge theory, simulation, and measurements. You will work at the intersection of RF engineering, signal integrity, and electro-optics to develop high-frequency systems interfacing with photonic components operating at multi-tens of GHz and beyond.

The role emphasizes first-principles thinking, rigorous experimentation, and collaboration with photonics and systems teams to deliver calibrated measurements and practical insights for

Qualifications

• PhD in a closely related field and strong electromagnetics background.
• Deep knowledge of RF/microwave engineering and high-frequency circuit theory.
• Experience with full-wave 3D EM solvers and SI/PI concepts.
• Hands-on RF measurement experience with VNAs and spectrum analysers.
• Programming for modelling and data analysis (Python, MATLAB).
• Ability to translate theory into measurements and results.

Responsibilities

• Design high-speed interconnects and transceivers (drivers, TIAs, front-end).
• Develop 3D EM models and analytical theories; validate with data.
• Plan and execute calibrated RF measurements using >50 GHz instrumentation.
• Co-design electronics with photonics for integrated switches and transceivers.
• Support schematic reviews, lab debugging, and performance optimisation.
• Analyse data and automate lab workflows with Python or MATLAB.
• Communicate results clearly across multidisciplinary teams.

Skills

RF design

Signal integrity

Electro-optics

Measurement science

Python / MATLAB

Lab automation

Data analysis

First principles thinking

Cross-disciplinary collaboration

Education

PhD in Electrical/Electronic Engineering, Physics, Photonics

Tools

HFSS

CST

VNA

Cadence

PADS

MATLAB

Python

Verilog/VHDL

Job description

The Role:

We are seeking a PhD-level RF / High-Speed Electronics Engineer with a strong foundation in applied mathematics, electromagnetic theory, and measurement science.

You will work at the intersection of RF engineering, signal integrity, and electro-optics, developing high-frequency systems that interface closely with advanced photonic components operating at multi-tens of GHz and beyond.

This role is ideal for candidates who think from first principles, are rigorous in experimentation, and are motivated to bridge theory, simulation, and real-world measurements.

What You’ll Do:

• High-speed circuit design: Contribute to high-speed interconnects and transceiver electronics, including drivers, TIAs, and front-end circuits for modulators and photodetectors
• 3D EM modelling & simulation: Develop and apply full-wave 3D electromagnetic models of RF structures, interconnects, and packaging (e.g. using HFSS, CST), alongside analytical models (transmission lines, S-parameters, noise, linearity, SI/PI), and correlate predictions with measured data
• Measurement & characterisation: Design and execute calibrated RF measurements (VNA SOLT/TRL, de-embedding, time- and frequency-domain analysis) using >50 GHz instrumentation
• Electro-optic integration: Co-design electronic interfaces for integrated photonic switches and transceivers, working closely with photonics and systems teams
• Prototype bring-up & debugging: Support schematic and PCB reviews, lab debugging, and performance optimisation
• Data analysis & automation: Use Python or MATLAB for data analysis, modelling, and lab automation
• Documentation & communication: Clearly document results and communicate insights across multidisciplinary teams

Required Qualifications and Experience:

• PhD in Electrical/Electronic Engineering, Physics, Photonics, or a closely related field.
• Deep understanding of electromagnetics, RF/microwave engineering, and high-frequency circuit theory.
• Experience with 3D electromagnetic simulation tools (e.g. HFSS, CST, or similar full-wave solvers)
• Strong applied mathematics background (linear algebra, signal processing, numerical methods, optimisation).
• Hands-on experience with RF measurement techniques and instrumentation (VNAs, oscilloscopes, spectrum analysers, BERTs)
• Programming skills for modelling and data analysis (Python, MATLAB, or similar)
• Ability to apply theory to real systems and extract insight from experimental data Clear communication and effective collaboration in multidisciplinary teams.
• Signal integrity / power integrity for high-speed interconnects
• Silicon photonics, co-packaged optics, or optical communications
• Strong experimental expertise (calibration, de-embedding, fixture design, noise/linearity/BER measurement)
• PCB design and EDA tools (e.g. Cadence, PADS)
• Exposure to FPGA development (Verilog/VHDL)
• Thermal considerations in high-density electronic systems
• Publications in relevant journals or conferences