Independent experts are being looked for H2020 Photonic calls. If you want to be an expert for the evaluation of proposals and project reviews, you have to register from following link (or you have to update your profile form), and then you have to send your CV and registration number (EX …) to the European Commission via e-mail (cnect-photonics@ec.europa.eu).
Registration link: http://ec.europa.eu/research/participants/portal/desktop/en/experts/index.html