Hien Do is a Staff Engineer based in Boston with 11 years of experience building high-performance Java backends and large-scale distributed systems. He has led cross-functional teams at VMware and Fitbit, balancing feature delivery, technical debt, and scalability for mission-critical commerce and infrastructure products. Deep expertise in Spring Boot, Netty, JPA/Hibernate, and testing frameworks is paired with hands-on experience automating deployments with Docker, Liquibase/Flyway, and CI tools. Hien has driven measurable improvements—consolidating datastores to boost performance by 33% and scaling services for holiday traffic—while also creating reusable test and performance frameworks used across teams. A strong technical leader, he blends system design, performance tuning, and developer productivity work, informed by an SM from Harvard and a 4.0 BS in Computer Engineering from Northeastern. Colleagues rely on him to introduce pragmatic technologies and foster disciplined, test-driven delivery in complex, geo-distributed teams.
11 years of coding experience
10 years of employment as a software developer
SM, Engineering Science, GPA: 3.75/4.0, SM, Engineering Science, GPA: 3.75/4.0 at Harvard University
BS, Computer Engineering, GPA: 4.0/4.0, BS, Computer Engineering, GPA: 4.0/4.0 at Northeastern University
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