Javier Garrido Sierra is a skilled Software Development Engineer at Amazon since May 2021, bringing extensive experience in software engineering and IT management. Prior to Amazon, Javier served as the Business Line Head of IT&Dev at Oney 3x4x Spain from November 2013 to May 2021, where responsibility included leading small teams, coordinating with other teams and providers, and overseeing client and company-oriented projects. Javier's early career involved roles as a Lead Software Engineer, Software Engineer, and Software Engineering Trainee, with a focus on .NET development, data model design, and SQL querying. Javier holds a degree in Ingeniero Técnico en Informática de Sistemas from Universidad Complutense de Madrid and has additional qualifications in English language education from Escuela Oficial de Idiomas de Toledo.