Nguyễn Hoàng Diệp Phi (phinhd)

Understanding Angular Auth Workflow: Login, Redirect & Route Guards

Fri, 24 Apr 2026 00:00:00 +0700

Hello, this post is a collection of what I’ve learned, written down so I can come back and recall it anytime. I will try to make it clear and concise.

About

Sat, 24 Jan 2026 14:40:00 +0700

I’m a Software Engineer based in Ho Chi Minh City, Vietnam with 2 years of hands-on experience in software development, focused on .NET backends for SaaS, CRM, healthcare and e-commerce systems.

What I Do

I build scalable and robust applications using modern web technologies:

Backend Development: ASP.NET Core, .NET Framework, C#, EF Core, Flask, FastAPI
Architecture: Clean Architecture, CQRS/MediatR, Domain-Driven Design, Modular Monolith
Frontend Development: React, Angular, TypeScript, Tailwind CSS, Bootstrap
Databases: SQL Server, PostgreSQL, MongoDB, MySQL, Redis
DevOps & Tools: Docker, Git/GitHub, CI/CD practices
Cloud & Monitoring: Microsoft Azure, AWS, Azure DevOps, New Relic, Datadog

Professional Journey

Currently working as a Software Engineer at Mobile World Investment Corporation (MWG) in Ho Chi Minh City, building backend services with .NET.

Experience

Sat, 24 Jan 2026 14:40:00 +0700

Work Experience

Software Engineer at Mobile World Investment Corporation (MWG)

Mobile World Investment Corporation (MWG) • Ho Chi Minh City, Vietnam
Sep 2026 - Present • Full-time

Developing and maintaining backend services for production retail systems with .NET.

Software Engineer at VIMG

VIMG • Ho Chi Minh City, Vietnam
May 2026 - Aug 2026 • Full-time

Contributed to the design, development, and maintenance of a Human Resources and Medical Staff Management System.

Projects

Sat, 24 Jan 2026 14:40:00 +0700

Here are some of the projects I’ve worked on:

Vietnamese Invoice Information Extraction System

A microservices-based invoice processing system using YOLO models for region detection and Tesseract OCR for Vietnamese text extraction, achieving 94.25% accuracy for store names and 93.5% for total amounts.

Technologies Used:
Python • YOLO (v8-v11) • Tesseract OCR • React • TypeScript • Flask • MongoDB • PostgreSQL • Docker • Kong API Gateway

Highlights:

94.25% accuracy for store name extraction
93.5% accuracy for total amount recognition
Processed 3,957 labeled invoices
Full-stack solution with real-time WebSocket communication
Batch processing and mobile-responsive interface

Crypto Trading Platform (Tordess)

Contributed to a comprehensive crypto trading platform with Excel export functionality, data visualization, and real-time trading features using .NET Core and React.

React Performance Optimization Techniques

Sat, 20 Jan 2024 00:00:00 +0700

Learn techniques and best practices to optimize performance in React applications

Learning React Hooks: From Basics to Advanced

Mon, 15 Jan 2024 00:00:00 +0700

Learn about React Hooks and how to use them effectively in real-world projects

TypeScript in React: Best Practices

Wed, 10 Jan 2024 00:00:00 +0700

Guide to using TypeScript with React effectively and essential best practices