Technical Lead Epitaxy

We are seeking a hands-on Epitaxy Tech lead to drive the development, optimisation, and production support of epitaxial growth processes for our MicroLED technology. You will report into R&D and will drive and execute the epitaxial process development, reactor performance, and material quality, while working closely with device, integration, and manufacturing teams to enable high-performance devices and scalable manufacturing. This role combines technical leadership with hands-on work, using your expertise to directly advance our technology. Key Responsibilities Develop and optimise III-AsP epitaxial growth processes using MOCVD for advanced device structures, ensuring high crystal quality, low defect density, and scalable manufacturability. Define suitable procedures/techniques for material characterisation. Design, plan, and execute Design of Experiments (DOE) to systematically optimise MOCVD growth parameters. Analyse epitaxial characterisation data and identify key process drivers influencing crystal quality, interface abruptness, and electrical performance. Collaborating with R&D, you will take full technical ownership of MOCVD process development, from early-stage epitaxial structure design through qualification and transfer to high-volume manufacturing. Define and establish robust MOCVD process windows, to ensure stable and repeatable epitaxial growth. Provide hands-on support when required for MOCVD reactor operation, including process setup, calibration, troubleshooting, and optimisation of growth conditions. There will be a team of experienced Epitaxy Engineers but as one of the technical experts you will be the go to person to advise and support. Provide technical leadership within the MOCVD epitaxy module, supporting engineers in best practices for growth, reactor operation, and process control. Mentor and develop junior engineers. Document and update best practice procedure to be used for troubleshooting and training junior engineers. Research on current trends in the industry and academia concerning microLED technology, AR/VR, visual light communication and optical computing from publications, conference proceedings and patents. Contribute to technology roadmap development. Strong collaboration across device, integration, and manufacturing teams. Skills, Knowledge and Expertise Proven experience involving AsP epitaxy for photonics including LEDs and uLEDs, edge emitting lasers, VCSELs, preferably on GaAs, preferably in the visible range. Experience in III-V on Si/Ge and Si photonics is also of interest. Experience scaling R&D processes into manufacturing. Previous and direct experience with relevant epitaxy tools. Highly hands-on and experimental mindset. Strong problem-solving and troubleshooting ability. Comfortable working in lab and fab environments. Ability to translate device requirements into epitaxial structures. Ability to organise data in order to support the team to arrive at solutions efficiently, by focusing on appropriate issues. Be committed and contribute towards a continuous improvement operating environment. Proactive attitude and ability to work independently and task ownership. Benefits Pension scheme Private medical & dental insurance 28 days’ holiday + bank holidays Free onsite meals Onsite gym Relocation support Visa support available