.Context & Environment Difficulties: Economic risk, requiring high concentration and attention to detail at work with recurrent changes in regulation.Relations:Internal: Back Office, Energy Data Management, Middle Office and other TGPG support departments.REN and IPBU internal customers.External: OMIE, REE, CNMC & customers.Activities Back Office is part of the Power Trading Support organisation, with multi locations mainly in Geneva, Houston, Paris and Madrid.The jobholder works closely with the Originators, Traders, Operations, Middle Office, Energy Data Management, Legal & Compliance, Credit, Treasury, Trading Accounting and the IT teams.As Back office analyst you will:Ensure that accurate trading information is represented within our 'in-house' trading system (the BOOK) by confirming deals with counterparts and brokers on a daily basis.Reconcile counterpart/TSO invoices against the system in liaison with the Operations, Middle Office and Energy Data Management departments to resolve discrepancies, mainly performing the calculation and validation of REE settlements and re-settlements: C2 (m+1), C3 (m+3), C4 (m+8) and C5 (m+11) and proceed with claims towards TSO.Process all the invoices related to TGP Madrid office activities (except OMIE done in Geneva) and associated services (payment approval in Geneva). Calculation of settlement information for billing customers of the services provided (CCGT, supply, market representation), and invoices issuance to counterparts within industry or contractual deadlines and ensure that the payments instructions are submitted to finance in a timely manner to comply with contractual payment dates.Follow up and control of operation guarantees in the market (OMIE and REE).Management and validation of settlements issued to the represented producers by the CNMC.Presentation of documentation on behalf of the producers to the CNMC.Annual submission of documentation to the CNMC (justification, fuel consumption).Manage a portfolio of internal & external counterparts (utilities, producers), mainly customer support on settlement and invoicing activities.Participate in the improvement of Back Office processes, propose systems improvements and assist in implementation with TGPG, from system testing and implementations to desk level process, ensure efficient coordination with Geneva office Back Office.Assist the Accounting team with accruals, aged debt reporting and resolution.Follow and comply with the list of established tasks with rigor, organization, and professionalism.All the activities described are the main associated with the profile, and there may be additional functions associated with the particularities of each candidate.Candidate Profile Academic Training and/or Years of Experience:Master's Degree Business Administration, Finance or equivalent