I'm Hoang Long (Henry), — a
Just a backend developer, pursuing a Master of Science in Machine Learning & Artificial Intelligence... Pray it works.
Based in
Ho Chi Minh City, Vietnam
HENVRIERHANG“Programs must be written for people to read, and only incidentally for machines to execute.
— Harold Abelson & Gerald Jay Sussman
LONG
Programs must be written for people to read, and only incidentally for machines to execute.
— Harold Abelson & Gerald Jay Sussman
Every day, thousands of lines of code get written. Most of them work. Few of them matter. No, writing more code doesn’t make a better product. Neither does adding another framework, another library, another feature. Too much software is built just to be built. Overcomplicated. Overengineered. Forgettable. I’m here to build differently. To turn ideas into products. To make complex systems feel simple. To build across the stack. To explore what AI can do beyond the hype. Fast. Reliable. Thoughtful. From frontend to backend. From code to intelligence. Anything but ordinary.
I build the systems
behind scalable software.
Layouts and systems worked out in Figma first, so the build has something to answer to.
- Design: Layouts and systems worked out in Figma first, so the build has something to answer to. (Figma, Design systems, Prototyping)
- Backend: Services that keep their promises — payroll tax for 1,500-person companies, social graphs, real-time chat. (C# / .NET, Java, Ruby on Rails, SQL)
- Frontend: Interfaces that stay quick once the data gets big, and read clearly before anyone opens the docs. (React, Next.js, TypeScript)
- DevOps: Infrastructure written down rather than clicked together, shipped by pipelines rather than by hand. (AWS, Azure, Terraform, CI/CD)
- AI Workflow: Models and agents put to work inside the product, not bolted on beside it. (LLM integration, Agents, Automation)
Hoang Long is a software engineer based in Ho Chi Minh City.
Ngo Duy Hoang Long
Software Engineer
Where I've worked,
and what I learned along the way.
Led a 3-person team building Vietnam's payroll tax declaration system for enterprises with 1,500+ employees.
Ruby on Rails · Next.js · AWS
Ho Chi Minh · 05/2025 — Present
Full Stack Developer / Team Lead
Led a 3-person team building Vietnam's payroll tax declaration system for enterprises with 1,500+ employees.
Ruby on Rails · Next.js · AWS
Ho Chi Minh · 05/2025 — Present
Featured work,
worth a closer look.
Kind words, unprompted.
Tran Thi Ngoc Thu
Founder
LunaHom
“I absolutely love the LUNAHOM website Henry created for me! He really understood what I was looking for and brought my ideas to life beautifully. Everything feels clean, thoughtful, and perfectly suited to my brand. I'm so happy with how it turned out. Thank you so much, Henry! Highly recommend his work!”
Tran Thi Ngoc Thu: I absolutely love the LUNAHOM website Henry created for me! He really understood what I was looking for and brought my ideas to life beautifully. Everything feels clean, thoughtful, and perfectly suited to my brand. I'm so happy with how it turned out. Thank you so much, Henry! Highly recommend his work!