David Sierra

David Sierra is currently the Head of Sales and Product Manager at Energy One Limited, overseeing the Sales team for eZ-nergy and Egssis. David is responsible for leading the New Sales process, managing Sales Account Management for Existing Clients, and achieving New Sales targets for Energy One France & Belgium. David also serves as the Product Manager of eZ-Ops, a SaaS solution for algotrading in Europe. Prior to their current role, David worked as an Energy Market Risks Consultant at Volterres, Energy Markets Director at CSN Energy, Head of Markets & Operations at SAVE, and Head of Market Access at Gas Natural Fenosa. David holds a Master of Science degree from CentraleSupélec in Energy, Telecommunications, and Systems.