The Role
The Senior Epitaxy Engineer is responsible for the epitaxial growth and process development of III-V materials, recipe optimization, troubleshooting growth issues, and collaborating with teams on semiconductor products.
Summary Generated by Built In
An exciting opportunity to contribute to the epitaxial growth and process development of III–V arsenide and phosphide materials (e.g., GaAs, InP, GaAsP, InGaAsP). This role will be involved in the growth recipe development, material quality, and process stability, and works closely with device and manufacturing teams to support advanced semiconductor products. This role offers the opportunity to work in a small, highly skilled team, driving the development of state-of-the-art technology platforms. You will directly contribute to the technology development.
Key Responsibilities
- Growth of III–V As/P materials using MOCVD.
- Develop, optimise, and maintain growth recipes for thickness, composition, doping, and uniformity.
- Design and grow complex heterostructures (e.g., quantum wells, superlattices).
- Troubleshoot growth-related issues including defects, surface morphology, and repeatability.
- Actively identify and implement opportunities for innovation and continuous improvement.
- Consistently deliver high-quality results while balancing development and production demands.
Skills, Knowledge and Expertise
- MS or PhD in Materials Science, Electrical Engineering, Physics, or related field.
- Strong hands-on experience with III–V As/P epitaxial growth.
- Expertise in GaAs-, InP-, GaAsP-, and InGaAsP-based materials.
- Experience with MOCVD.
- Hands-on experience with Aixtron or Veeco tools.
Advantage
- Experience within Photonics applications and/or MicroLED.
Benefits
- Pension scheme
- Private medical & dental insurance
- 28 days’ holiday + bank holidays
- Free onsite meals
- Onsite gym
- Relocation support
- Visa support available
About
About PlesseyWe’re building the hardware foundation for next-era computing.Plessey is a world-leading technology company driving the next generation of photonic devices and systems. With over 70 years of innovation, we combine research, materials science, process engineering, and manufacturing under one roof. We’re recognised as a global authority in microLED displays, optical computing, and optical interconnects.Join us to work on breakthrough technologies shaping the future of light-based technology and computing.LeadWe don’t follow industry trends; we create them, pushing boundaries and setting standards others aspire to. Every team member has the power to make decisions, drive change, and deliver excellence. We support each other, challenge one another for the best solutions, and lead by example. Together, we build industries and technologies that shape the future and scale toward our vision of the next era of computing.GrowWe expand our capabilities every day — deepening our expertise, improving how we work, and pushing the boundaries of what’s possible. Curiosity fuels us: we question assumptions, explore new ideas, and innovate with light-based technologies. By investing in and empowering our people, we strengthen Plessey’s impact and help shape the future of optical technology.TrustWe operate like a family—honest, reliable, and supportive. We have each other’s backs, own our actions, and uphold the highest standards of integrity and safety. We trust each other to deliver, our customers to challenge us, and our expertise to guide the way. Together, trust enables the collaboration essential for breakthrough innovation and lasting impact.
Skills Required
- MS or PhD in Materials Science, Electrical Engineering, Physics, or related field
- Strong hands-on experience with III-V As/P epitaxial growth
- Expertise in GaAs-, InP-, GaAsP-, and InGaAsP-based materials
- Experience with MOCVD
- Hands-on experience with Aixtron or Veeco tools
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The Company
What We Do
Plessey is a UK-based technology company specializing in the design and manufacturing of advanced microLED display solutions. They utilize a proprietary GaN-on-Silicon platform to produce high-performance, high-density RGB pixel arrays for applications in Augmented Reality (AR), Virtual Reality (VR), and other head-mounted display systems. The company operates integrated manufacturing facilities in Plymouth, England, focusing on the next generation of photonic technologies for computing and display engines.
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