Department of Earth Sciences, South Parks Road, Oxford The Department of Earth Sciences are seeking a highly motivated and skilled researcher to join our team investigating the physiological and biochemical processes underpinning calcification and photosynthesis in calcifying plankton. This role offers an exciting opportunity to contribute to research on cellular and community-level processes that shape marine carbon cycles. The post holder will be a part of the Oceanbug group which includes scientists that collaborate between the Department of Biology, Biochemistry, and others and will be reporting to Prof. Rosalind Rickaby and Prof. Dmitry Filatov. This post is based in the Department of Earth Sciences and is funded for 18 months, with a possibility of extension contingent on funding. About you The successful candidate will hold or be close to the completion of, a relevant PhD/DPhil together with relevant experience. You will have the ability to lead and report an original research programme, as shown by a documented research track record, including timely publications and presentations at international conferences. You will have relevant experience in culture, physiological monitoring techniques and optical and electron microscopic approaches. Excellent communication skills including the ability to write for publication, present research proposals and results, and represent the research group at meetings are key. The successful candidate will also demonstrate willingness and the ability to collaborate with other researchers in a multi-disciplinary environment. Experience of enzyme kinetic assays and working with an O2 electrode as well as previous work with phytoplankton culture are desirable but not essential. This is an 18-month fixed term post from 01 April 2026 with the possibility of extension. For full details of the role please see the job description.