Lead Photonics Design Engineer - III/V Components

Own the technology roadmap and device specifications for your area, translating system requirements into device design and integration targets

Lead mask design and tape-outs, including GDS layouts, test structures and design-of-experiment splits

Manage fabrication runs with external epitaxy and foundry partners: define process flows, review process and in-line data, and resolve yield issues as the technology scales

Define and lead the characterisation strategy at wafer, chip and integrated-PIC level, including building and automating test setups

Analyse test data, correlate measured performance with design and process variations, and drive design iterations to close performance gaps

Work with packaging and reliability engineers on burn-in, accelerated ageing, failure analysis and qualification

Mentor engineers and, as the team grows, help recruit and develop new team members

Essential requirements

PhD in physics, photonics, electrical engineering, optical engineering or a related subject with 6+ years' relevant experience, or a Master's degree with 8+ years' relevant experience, including at least 4 years' hands-on development of III-V optical amplifiers or semiconductor lasers, preferably in industry

Proven track record of taking III-V devices from concept through design, fabrication and test, ideally including qualification

Deep understanding of semiconductor laser and amplifier physics: optical gain, carrier dynamics, quantum-well design, noise, gain saturation and nonlinearities, thermal effects and polarisation dependence

Hands-on knowledge of III-V epitaxy and fabrication processes (e.g. MOCVD/MBE growth, lithography, etching, passivation, metallisation, facet/AR coating), and experience working with external foundries

Experience characterising amplifiers or lasers, including optical spectrum analysis, gain and noise measurement, wafer-level probing, temperature-controlled testing and test automation

Experience with simulation and layout tools for photonic devices, such as Lumerical, Photon Design, Crosslight, RSoft, COMSOL, KLayout, L-Edit or Cadence Virtuoso

Proven ability to lead technical projects across design, process, test and packaging functions, and experience mentoring or supervising engineers

Excellent communication skills, critical thinking, attention to detail and self-motivation

Nice to have

Experience integrating III-V active devices with silicon photonics, including coupling design between III-V and silicon waveguides

Experience line-managing a technical team

Experience with reliability testing and failure analysis of III-V devices

Experience developing PDK building blocks or compact models for active devices

Programming experience (Python, MATLAB or C++) for simulation, test automation and data analysis

Knowledge of photonic packaging, including fibre coupling, thermal design and TEC control

A track record of high-quality patents and research papers

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