Principal Process Development Engineer

Plymouth, GBFull-timePosted Jan 7, 2026

Job description

Seeking a Principal Process Development Engineer with deep expertise in process development, strong analytical and problem-solving skills, hands-on experience with advanced fabrication and characterization techniques, and a proven ability to lead cross-functional R&D initiatives. Join a fast-growing Process Development team pushing the boundaries of innovation in MicroLED and Interconnect.

Around 60% of your time will be spent in a state-of-the-art cleanroom advancing process development, and the other 40% on planning, analysing data, and presenting insights to management. Lead the development and optimisation of fabrication processes for MicroLED and Optical Computing devices. You will work on all stages of process development, defining process architecture, developing process modules, working with process development tool owners to develop and optimise pixel performance.

Constantly seek out and implement opportunities for innovation and improvement in the products and processes. Participate in risk assessments and design reviews. Identify the requirements for new tooling to support the MicroLED and Optical Compute development roadmap, including defining process recipe specifications and aligning with the process tool owner.

Leverage your R&D and process development experience to drive progress within a high-performing, results-oriented team. A PhD degree in either of Physics, Electrical/Electronic Engineering, Material science or any relevant subject covering the field of III-V semiconductor devices. 3+ years of extensive experience in process development within semiconductor, display, or related high-tech industries.

Expert knowledge of MicroLED or Photonics and/or Optical compute technologies. Hands on experience of developing and optimising III- V, ideally III – N, semiconductor device fabrication processes in clean room environment. Knowledge of semiconductor device physics. Broad experience in semiconductor process techniques, including but not limited to lithography (stepper and mask aligner), etch (RIE, ICP and wet etch), CVD, PVD, Evaporation, ALD, IBD.

Design of Experiments and statistical analysis techniques. Expert experience of LED performance matrix and its measurement techniques such as IV response, Electroluminescence, EQE will be advantageous. Working knowledge of CAM systems and SPC. Ability to communicate clearly, design decisions to cross-functional teams.

Experience of risk analysis and design review processes. Pension scheme Private medical & dental insurance 28 days’ holiday + bank holidays Free onsite meals Onsite gym Relocation support Visa support available

Description copied from Plessey's careers page. Read the full posting before you apply.

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