Our client is an international biomedical research institute of excellence, based in Barcelona and operating in their sea front offices. With more than 500 employees from 41 countries the centre is based on an interdisciplinary motivated and creative scientific team that is supported by high end and innovative technologies. As an Accounting Clerk your responsibilities include: - Register and validate suppliers invoices - Create new suppliers or employees file in oracle system - Managing failed billing and urgent payments - Update and control suppliers payable accounts in the database to claim missing invoices - Reconciliation of credit card charges and payable bank accounts with systems recorded expenses - Control ending projects and its supplier commitments to get the invoice and pay on time - Ask end user for invoices received with no purchasing order reference - Manage and reply to service requests received from the end users and or suppliers - Provide solutions to any problem on suppliers portal and to ensure that electronic invoicing runs properly