
Salience Labs, an Oxford spinout that has raised $88M, develops silicon photonics optical switches that give AI data centres all-optical connectivity between compute nodes. They're hiring a Photonic Layout Engineer to turn device and circuit requirements into fabrication-ready integrated photonic layouts, based in Abingdon on a hybrid basis. This hardware engineering role sits within the UK's photonics and semiconductor sector.
⌕ Job Overview:
We are looking for a Photonic Layout Engineer to join our Photonics team and contribute to the physical design, verification and development of advanced integrated photonic devices.
You will work closely with engineers across photonic design, layout and testing, helping translate device and circuit requirements into robust, fabrication-ready layouts. The role will involve a combination of physical layout, design verification, programming and continuous improvement of our internal design workflows.
This is a hands-on engineering role for someone who enjoys working at the intersection of integrated photonics, semiconductor design and software. You should be comfortable working through complex layout challenges, interpreting design requirements and using programming to improve the speed, quality and repeatability of engineering work.
Depending on your experience, you may join at Mid or Senior level. We are particularly interested in people who have worked on integrated photonics or semiconductor IC layout, whether in industry, research or a strong academic environment.
✎ What you'll be doing:
Develop physical layouts for integrated photonic components, structures and larger photonic designs
Translate photonic device and circuit requirements into fabrication-ready layouts
Perform design verification, including DRC and LVS
Support designs through the full layout and verification process
Develop and improve software-based workflows for photonic layout and design automation
Use Python and relevant semiconductor or photonic design tools to create, manipulate and verify layouts
Maintain and contribute to internal component and design libraries
Support the development of appropriate test and characterisation structures
Review layouts for design integrity, fabrication constraints and potential sources of failure
Collaborate closely with photonic design, testing and wider engineering teams
Contribute to improvements in layout methodology, tooling and verification processes
Help make photonic design workflows increasingly repeatable, reliable and efficient
Over time, you will take ownership of increasingly complex layout work, progressing from individual components and structures through to larger integrated photonic designs and full design verification.
𓏗𓏗 What we're looking for:
A Bachelor's degree or equivalent in Physics, Photonics, Electrical Engineering, Optical Engineering, or another closely related technical discipline
Relevant experience in integrated photonics, photonic IC layout, semiconductor IC layout or design verification
Hands-on experience creating physical IC or photonic layouts using Python or other layout and EDA software
Strong programming capability, ideally with experience in Python or another relevant programming language
The ability to explain and discuss software or coding projects you have worked on in detail
A good understanding of integrated photonics or the broader semiconductor IC industry
Working knowledge of photonic IC design and fabrication flows
An understanding of how physical layout decisions interact with device design, fabrication and performance
A collaborative approach and the ability to work effectively across multidisciplinary engineering teams
Strong critical thinking and attention to detail, particularly when reviewing layouts and resolving verification issues
Clear communication skills and the ability to explain technical decisions and trade-offs
For more experienced candidates, we would typically expect around two or more years of relevant work in integrated photonics or IC layout and verification. Candidates with particularly strong academic, research or project experience may also be considered where they can demonstrate the required practical capability.
✧ Even better if you:
A Master's degree or PhD in integrated photonics, photonics, electrical engineering, physics or a related discipline
Hands-on experience with Python-based layout automation
Experience with photonic or semiconductor EDA tools
Familiarity with common integrated photonic devices and structures
Knowledge of semiconductor manufacturing processes and fabrication technologies
Experience developing or maintaining component or PDK libraries
Previous involvement in photonic or semiconductor design cycles
Experience working with DRC and LVS verification
Experience working within a commercial product development environment
A background in photonic device design or semiconductor process development
Relevant backgrounds could include integrated photonics design and layout teams, silicon photonics research groups, university or research institute environments, or semiconductor IC layout and verification teams.
This is an opportunity to work on genuinely challenging problems across photonics, semiconductor engineering and software, with meaningful ownership over the quality and effectiveness of physical design.
You will join a highly collaborative engineering environment where you can influence not just individual designs, but also the methods, tools and processes used to develop advanced photonic hardware.
The role is based in the UK on a hybrid basis, with three days per week on site.
Salience Labs develops silicon photonics-based optical switches for AI data centres, enabling all-optical connectivity between compute nodes to overcome data-movement bottlenecks. Spun out from the University of Oxford and University of Munster in 2021, the company was co-founded by Vaysh Kewada, Johannes Feldmann, Harish Bhaskaran, and Wolfram Pernice. Its OC-32M all-optical switch delivers 10ns latency (20x lower than electronic alternatives) at under 1W per port, with 32-, 64-, and 128-port variants in development. Salience has raised $88M to date, including a $30M Series A led by Applied Ventures and ICM HPQC Fund. The company was ranked #28 in Sifted's AI 100 and #2 in Hardware. It is headquartered in Oxford with an office in San Jose.