Rolando Martinez, a Staff Data Engineer at Vrbo, was named the MongoDB Certified Professional of the Year 2019. He transitioned from an RDBMS world to MongoDB in 2017, driven by Vrbo's need to meet GDPR requirements for global customers. With MongoDB, he built a "ForgetMe" service that could orchestrate customer data obfuscation and reporting APIs. After passing his certification exam on his first attempt, Rolando became a full stack dev engineer in Java and MongoDB, guiding teams on MongoDB adoption and becoming an expert on the platform. His certification has significantly impacted his career, earning him recognition as the Certified Professional of the Year 2019.