H Doan
Senior Technical Lead at Zalo
Vietnam
Summary
👤
Senior🎓
Top SchoolH Doan is a Senior Technical Lead with 10 years building scalable Android and backend systems, currently leading architecture and delivery for zCloud, Zalo’s first paid cloud storage product. He combines deep Android expertise—refactoring legacy chat systems to MVP and enforcing Clean Code/SOLID practices—with hands-on backend work, having designed Big Data pipelines for real-time monitoring across millions of devices. A pragmatic mentor and cross-functional collaborator, he writes technical specs, plans sprints, reviews code, and coaches teammates to improve error handling and design thinking. Outside of engineering he is a published technical writer, runner, and guitarist, bringing a habit of disciplined iteration and creativity to product challenges.
10 years of coding experience
5 years of employment as a software developer
Computer Software Engineering, Computer Software Engineering at CoderSchool (IT W21)Computer Software Engineering, Excellent, Computer Software Engineering, Excellent at VNUHCM - University of Science
English
Github Skills (78)
mvp-architecture10
mvp10
coverage10
mvp-android10
jar10
android-application10
memory-leak-detection10
kotlin-android10
istanbul10
leakcanary10
cross-platform10
java10
android-library10
android-app10
android10
Programming languages (6)
Github contributions (5)
nhoxbypass/android-development-patterns
Feb 2018 - May 2020
Notes, logs and code about Android Development Patterns especially Android Performance Patterns. #BuildBetterApps #PERFMATTERS
Contributions:119 commits, 2 PRs, 125 pushes in 2 years 3 months
notesandroidloggingandroid-developmentperfmatters
nhoxbypass/iEnglishNow
Jun 2017 - Jan 2018
Contributions:28 commits, 3 PRs, 28 pushes in 6 months
opentokimprovedcreate-appios-appchat
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