Hao Tan Email & Phone Number

New York, United States

• Led cross-functional teams to design and deliver high-impact web applications and API services for critical systems such as ticket entry and fan engagement.• Architected and implemented scalable cloud-based solutions with high availability and reduced operational costs across multiple projects.• Directed the development of mobile SDKs and CIAM features, speeding up feature releases by optimizing delivery pipelines.• Championed OAuth-based authentication, enhancing user login experiences across MLB and third-party applications.• Mentored engineering teams, fostering a culture of collaboration and technical excellence.

Chelsea, New York

• Drove the transformation of backend systems into microservices, ensuring scalability and resilience under heavy traffic loads.• Spearheaded the development of self-service marketing tools, integrating multiple commerce and messaging systems to generate millions in annual transactions.• Developed high-performance, message-driven architectures supporting critical MLB events such as All-Star voting and fan interaction.• Built and maintained automated pipelines for search indexing and push notifications, optimizing user engagement on MLB’s digital platforms.

Greater New York City Area

• Led API migrations from legacy systems to Java-based services, enhancing performance and maintainability for mobile applications.• Played a key role in defining architecture standards, driving organizational improvements in software development processes.• Supported cloud migrations to AWS, enabling greater flexibility and scalability for key services.

• Led frontend development for FoodNetwork.com and HGTV.com digital events.• Developed front-end enhancements using HTML, CSS, and JavaScript.• Worked with backend developers to define API contracts for web applications