Quan Hong
Java Software Engineer at Linagora Vietnam
Hà Nội, Vietnam
Summary
🤩
Rockstar🎓
Top SchoolQuan Hong is a Java software engineer with six years' experience building and optimizing distributed systems, currently contributing to Apache James and improving mail server performance and scalability. Based in Hà Nội, he combines backend development (Java, Scala, Project Reactor) with hands-on operations work—CI/CD, staging deployments, monitoring and performance debugging—often acting as scrum master and community manager in an international, English-speaking team. He has driven measurable gains such as a 3x IMAP request rate improvement and implemented JMAP features including push notifications and OpenID integration. An active open-source contributor (notably to the widely used Apache James project), he also implemented JMAP threading during Google Summer of Code, showing a strong grasp of protocols, reactive design and search/storage stacks like Cassandra and OpenSearch. Pragmatic and curious, he seeks scalable, high-throughput systems where he can both ship features and level up in operations.
6 years of coding experience
Engineer's degree, Computer Engineering, 3.0 CPA, Engineer's degree, Computer Engineering, 3.0 CPA at ĐH Bách Khoa Hà Nội
Github Skills (7)
javas10
rest-api10
back-end-development10
java10
integration-testing10
jmap9
feign8
Programming languages (14)
Github contributions (5)
apache/james-project
Oct 2020 - Jan 2023
Emails at the heart of your business logic!
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1651 reviews, 224 commits, 254 PRs in 2 years 3 months
Contributions summary:Quan contributed to the development of the Apache James project, specifically focusing on improvements to the Webadmin CLI, including help commands and the addition of domain management commands (create, delete, exist). The commits demonstrate proficiency in Java development and integration testing, involving changes to the webadmin-cli module, the addition of new classes for command handling, and updates to existing test classes. They also worked on adding user-related commands, such as listing, creating, deleting, and checking user existence, and supporting the JMAP options.
mailsmtpemailbusiness-logicemails
quantranhong1999/james-project
Sep 2020 - Apr 2025
Mirror of Apache James Project
Contributions:670 pushes, 291 branches, 9 comments in 4 years 6 months
javaapachejames
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.