Mark Castillo is a seasoned web developer with extensive experience in designing, developing, and testing front-end web and mobile applications, currently working at Sinch since November 2020 and previously at SAP from July 2010 to November 2020. Prior to these roles, Mark served as a web producer at Sybase, managing ad operations and contributing to successful ad campaigns that generated over $3 million in revenue. Additionally, Mark has freelanced as a designer for small to medium-sized businesses and nonprofits, and held positions as a fraud technical project manager at Zappos.com, where significant fraud prevention was achieved, as well as worked at Microsoft in software testing and member services management. Mark holds a BA in Industrial Arts from San Francisco State University and has attended Saint Peter's University and St Peter's Prep.
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