Plessey Semiconductors Ltd
Principal Simulation Device Engineer
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About Plessey
We’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 and optical interconnects.
Join us to work on breakthrough technologies shaping the future of light-based technology and computing.
Location
Based in Plymouth
Our Values
Lead
We 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.
Grow
We 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.
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About the Role
Are you ready to shape the future of next-generation devices? We are looking for a Principal Device Simulation Engineer to join our team of innovators pushing the limits of MicroLED and optical interconnect technology. Your simulations will help validate theories, explore design trade-offs, and inform the next generation technology.
Key Responsibilities
- Lead the simulation, modelling, and analysis of semiconductor or photonic devices across a range of technologies.
- Develop and validate device models to support design, optimisation, and experimental work.
- Collaborate closely with process integration, optics & device engineering to provide actionable insights from simulation results.
- Mentor and guide junior engineers on simulation methodologies and best practices.
- Evaluate and implement new simulation tools and techniques to enhance modelling capabilities.
- Present technical findings to internal stakeholders and contribute to technology strategy.
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Experience & Attributes
- PhD in Physics, Electrical Engineering, Materials Science, or a related field.
- This role requires deep knowledge of device physics, semiconductor simulation tools, and advanced analytical methods.
- Direct knowledge of advanced simulation tools (examples include Silvaco ATLAS/Blaze, SiLENS, COMSOL, Optiwave).
- Experience interpreting simulation results and providing guidance to experimental/device teams.
- Direct knowledge of simulating ultra-high speed III-V light emitting devices.
- Knowledge of ultra-high-speed devices or high-frequency applications.
- Strong programming or scripting skills for simulation automation (Python, MATLAB, etc.).
- Strong analytical and problem-solving skills.
- Excellent written and verbal communication skills.
- Ability to work collaboratively in a multidisciplinary team.
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