Senior Photonics Design Engineer Jobs

Salience Labs

Location:
United Kingdom, Oxford

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

As a Photonic Design Engineer at Salience Labs, you will play a crucial role in developing active photonic switches for large-scale deployment. You will apply your expertise in silicon photonics and optical semiconductor devices to design, simulate, and optimise Photonic Integrated Circuits (PICs). Your work will span from concept and simulation to layout and characterisation, collaborating closely with system architects, test engineers, and manufacturing partners. This is an opportunity to drive innovation in next-generation optical interconnects and contribute to the development of high-performance photonic systems.

Job Responsibility:

Designing and modelling passive and active silicon photonic devices and integrated photonic systems, including III-V's
Prototyping novel photonic components and architectures, designing suitable test structures, and validating experimental results against simulations
Using simulation and experimental data to evaluate device performance and guide engineering decisions
Working with the architecture team to develop system-level models for photonic integration
Supporting hardware and software teams to ensure alignment with system-level performance goals
Collaborating with component test engineers to design experiments and analyse results
Helping create and maintain the codebase for photonics component layout in GDS format
Partnering with manufacturing teams to optimise and transition designs into volume production
Contributing to intellectual property development, including filing patents for novel innovations

Requirements:

Master’s degree in physics, photonics, electrical engineering, or optical engineering, with 5+ years of relevant experience (Ph.D. preferred)
Strong understanding of waveguide optics, integrated photonic devices, and semiconductor physics
Knowledge of silicon photonic components, with an understanding of their trade-offs
Experience in modelling and simulating integrated photonic devices, using both commercial software and analytical approaches
Excellent communication skills, critical thinking, and self-motivation

Nice to have:

Programming experience in C++ or Python for simulation and automation
Highly analytical, detail-oriented, and able to own complex tasks and drive them to completion
Experience in GDS layout tools such as gdsfactory, KLayout, or equivalent
Understanding of semiconductor manufacturing processes and fabrication technologies
Have designed III-V active devices
Laboratory experience or have worked closely with experimental teams
Have authored patents or research papers on photonic technologies
Industry experience in product development
Experience in coaching and mentoring junior engineers

Additional Information:

Job Posted:
December 11, 2025

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Senior Photonics Design Engineer