MakesomethingworthRemembering
(Henvrier) Hoang Long
Contact

Ngo Duy Hoang Long

I'm Hoang Long (Henry), — a

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Based in Vietnam
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I build the systems
behind scalable software.

DesignBackend
FrontendDevOps
AI Workflow

Hoang Long is a software engineer based in Ho Chi Minh City.

Ngo Duy Hoang Long

Software Engineer

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Where I've worked,
and what I learned along the way.

05/2025 — Present · Ho Chi Minh

Donuts Co.Ltd

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 RailsNext.jsAWS

11/2024 — Present · Ha Noi · Freelance

Supermetric

Remote Outsourcing @ Bach Tuong Phat

An e-commerce analytics platform pulling sales data from Shopee & TikTok, with Python pipelines that train AI models.

ASP.NETPythonAzure

12/2023 — 04/2025 · Ho Chi Minh

Beehexa Corp

Full Stack Developer

Built the social-graph backend (C# + Neo4j) and real-time chat (SignalR) for a social platform.

C#Neo4jRabbitMQ

Personal Project

CineMate

Solo build

Synchronized video watching for remote teams — under 50ms playback drift over WebRTC.

JavaWebRTCQUIC
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Featured work,
worth a closer look.

CineMate - Collaborative Streaming Platform
01

CineMate

A real-time video watching application with synchronized playback for remote teams, allowing users to watch content together from multiple sources with integrated chat and video conferencing capabilities.

ASP.NET Core / SignalR / WebRTC

NoteWorth - Collaborative Note-Taking App
02

NoteWorth

A full-stack note management application with advanced collaboration features, allowing users to create, share, and collaboratively edit notes in real-time with markdown support.

Next.js / TypeScript / Node.js

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