Backend-focused developer with 9+ years of experience building, operating, and optimizing
large-scale provincial-level systems at VNPT.
Strong in Java Spring Boot & .NET, specializing in backend architecture, microservices,
performance optimization, and complex business workflows in real production environments.
📍 Dak Lak, Viet Nam
📧 tinnh.pyn@gmail.com
🌐 https://www.nguyenhoangtin.com
Note: Part of my development work is on
for private / company projects,
so not all activity is visible on.
- Core backend developer for large-scale enterprise systems
- Public Administrative Portal · VNPT iOffice · Electronic Invoice · eCabinet
- Involved in system design, development, performance tuning, and production support
- Supported real-world operations with thousands of users
- Multiple years awarded Outstanding Employee / Emulation Award
Full-stack web application for managing diecast inventory with a 360° image spinner,
public catalog, and social-selling tools optimized for Facebook.
Minimalist personal portfolio website built with Astro,
featuring smooth full-page scrolling and clean layout.
🔹 DClass
Lightweight classroom management application that helps teachers
track student activities, reward points, and achievements in real classroom use.
Focused on large-scale systems, complex business domains,
and engineering-driven, long-term products.
⭐ Open to backend-heavy fullstack roles and enterprise system development.