Lightricity is a high-tech SME which has developed ultra-high efficiency light (photovoltaic) energy harvesting technologies for IoT and space applications. Our indoor PV technology provides power to smart devices and sensors without the need for disposable batteries, providing a sustainable and cost-effective solution for powering billions of smart devices and sensors. Our outdoor PV technology has state-of-the-art performance and provides electrical power for micro-satellites and UAVs Lightricity is seeking an Optoelectronic Device (Solar Cell) Engineer to advance our high-efficiency photovoltaic technology platforms. The role encompasses the development, fabrication and characterisation of high-efficiency devices for indoor & outdoor IoT environments and for aerospace applications. This role involves hands-on device processing, optimising device performance and characterisation in our laboratories. The successful candidate should enjoy hands-on activities and have a relevant science or engineering degree. Responsibilities: Design and simulation of solar cell structures to achieve world-class efficiencies for specific applications Develop and refine semiconductor microfabrication processes in a cleanroom environment Perform comprehensive optoelectronic characterisation of optoelectronic devices / solar cells Plan and execute reliability and environmental testing, ensuring devices meet applicable requirements Contribute to the company’s R&D projects Write technical documentation, specifications and test reports Required skills/experience: Degree in physics, materials science, electrical engineering or a related discipline (MSc or PhD desirable) Strong understanding of semiconductor device physics, specifically solar cells or optoelectronic devices Hands-on experience with semiconductor microfabrication techniques in a cleanroom environment, including photolithography, wet/dry etching, dielectric and metal deposition Experience with device characterisation (e.g. material and structural analysis, optoelectronic characterisation) Ability to work under own initiative and manage workload to meet tight project deadlines Eligible to work in the UK Desirable skills/experience: Experience with advanced optoelectronic characterisation (solar simulators, quantum efficiency measurements) Experience with processing and analysis of large experimental datasets (e.g. in Python) Familiarity with TCAD semiconductor modelling or simulation software Knowledge of material epitaxy Familiarity with space industry standards or Assembly, Integration and Test (AIT) principles Benefits: Competitive salary Workplace pension Access to tennis court and table tennis on-site On-site facilities (kitchen, changing rooms, showers) Great location in the Oxford Science Park