Plessey Semiconductors
Makes microLED displays and optical interconnect devices for large technology companies, built in an integrated Plymouth facility
Highlights
- Hiring31 open roles
- New on EvolcAdded 2026-10-28
About Plessey Semiconductors
Plessey designs and builds photonic devices: microLED displays for AR, MR and wearable products, and optical interconnects that move data between chips, cards and racks in AI infrastructure. Research, IP, materials, process engineering and manufacturing all sit in one integrated facility in Plymouth, UK.
The company serves large-scale technology customers that need optical components for computing, display and sensing products. Its website describes a process of research to volume production within a single operation.
The company was founded in 2000 according to its registry record, and its website states that it has advanced optical technologies for over 70 years. Haylo Labs acquired Plessey Semiconductors in 2025. Open roles listed are mainly in Plymouth, with some in Oxford, in areas such as photonics systems, epitaxy, process engineering and R&D.
Product: MicroLED displays for AR, MR and wearables, and optical interconnects for AI infrastructure
Jobs at Plessey Semiconductors (31)
Plessey Semiconductors is hiring for 31 roles, mostly in manufacturing and engineering, based in Plymouth.
Systems Accountant
New on EvolcShift Equipment Engineer
New on EvolcShift Equipment Engineer
New on EvolcShift Equipment Engineer
New on EvolcSenior Thermal Simulation & Modelling Engineer
New on EvolcSenior Test Support Engineer
New on EvolcSenior Process Development Engineer
New on EvolcSenior Photonics Simulation Engineer
New on EvolcSenior Opto-Mechanical Engineer
New on EvolcSenior Infrastructure Engineer
New on Evolc
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Leadership
- David Hayes · Chief Executive OfficerSource: company website
- Phil Greenhalgh · Chief Technical OfficerSource: company website
- Richard Smith · Chief Operating OfficerSource: company website
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