Senior Device Engineer

Job description

About us

Plessey has a long history of innovation. Founded in 1956, we have evolved from one of Europe’s earliest semiconductor pioneers into the world’s most advanced MicroLED specialist. Over the decades, Plessey has built a first class, fully integrated platform designing, manufacturing, and engineering next-generation display technologies entirely in-house. This end to end capability, combined with our strong IP portfolio, uniquely positions us to lead the scaling of MicroLEDs from lab innovation to high-volume production.

Our future is even brighter. We believe MicroLEDs will define the next era of technology—powering ultra-efficient AR/VR displays, driving optical processors that make AI faster and more sustainable, and enabling devices yet to be imagined. With our unique expertise and talented team, we are positioned to lead this transformation.

It’s an exciting time to join us: Plessey has recently been acquired by Haylo Labs, accelerating our growth and opening new opportunities.

Our Values

• Innovation
• Collaboration
• Commitment
• Care

Location

Located at our head office and state-of-the-art fabrication facility in Plymouth.

About the Role

• Taking a central role in developing new and applying existing measurement and modelling techniques to help to develop new technologies.
• Developing novel measurement methods for QW micro-LED structures.
• Working in close collaboration with the Process Development and Process Architecture teams.
• Identifying reasons for and solutions to performance limiting behaviour.
• Developing and introducing new techniques to help characterise and understand the operation of our micro-LED structures.
• Liaise with research institutions such as universities and government laboratories with a view to commissioning work outside of the scope that is possible within Plessey.
• Produce clear and concise reports for dissemination of results among the engineering community.

Skills, Knowledge and Expertise

• Ph.D or MSc in Physics.
• Strong knowledge of semiconductor device physics and optoelectronic principle.
• Hands-on experience with optical and electrical characterisation techniques for LEDs or photonic devices.
• Substantial experience with semiconductor measurements and a demonstrated ability to learn and develop device models.
• Strong analytical and problem-solving skills.
• Excellent written and verbal communication skills.
• Ability to work collaboratively in a multidisciplinary team.
• Experience with RF would be an advantage.

Extra information

Status

Open

Education Level

Secondary School

Location

England

Type of Contract

Full-time jobs

Published at

16-03-2026

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English