Backend Developer • Software Engineering Student • Tech Explorer

Name: Tran Khoi Nguyen
Location: Ho Chi Minh City, Vietnam
Role: Backend Developer / Software Engineering Student
Focus:
  - Backend Architecture
  - RESTful APIs
  - Database Design
  - Distributed Systems
  - Message Queues & Async Processing
Learning:
  - System Design
  - Cloud & DevOps
  - Microservices
  - Data Engineering

💡 I enjoy building scalable backend systems, optimizing APIs, and exploring how modern architectures work under the hood.

⚡ Currently interested in:

• Node.js ecosystem
• PostgreSQL optimization
• RabbitMQ & event-driven systems
• Prisma ORM
• System design & distributed systems
• Data analysis / ML side projects

Android application for learning Japanese vocabulary and language practice.

• Mobile-first learning experience
• Interactive Japanese learning workflow
• Android-native implementation

Java HTML Android

Modern perfume e-commerce platform upgraded from a previous legacy perfume store project using ASP.NET Core MVC.

• Product management system
• Storefront UI redesign
• SQL Server integration
• MVC architecture implementation

ASP.NET Core MVC C# TSQL JavaScript HTML/CSS

Flutter mobile application focused on green commerce and clean food products with secure authentication and clean architecture.

• Firebase OTP authentication
• Secure token storage with silent refresh flow
• Clean Architecture implementation
• Backend integration with RBAC system
• Modern mobile UX with feedback systems

Flutter Dart Firebase Auth Dio Secure Storage Node.js

High-performance RESTful API built with NestJS and Oracle Database for enterprise-grade store management.

• JWT + RBAC authorization
• Oracle PL/SQL procedure integration
• Redis caching & session management
• Cloudinary image management
• Hybrid Clean Architecture + Layered Architecture
• Session context security for auditing

NestJS Oracle Database Redis Cloudinary JWT

Premium real-time chat application inspired by modern messaging platforms with advanced UX synchronization.

• Hybrid HTTP + Socket message flow
• Advanced emoji & reaction system
• Real-time online presence & sidebar sync
• Zero-latency UI updates using TanStack Query
• Cinematic onboarding experience
• Global socket orchestration

React TypeScript Socket.io Zustand TanStack Query Vite

Enterprise-grade real-time chat backend optimized for scalability, security, and distributed architecture.

• Modular Monolith Architecture
• PostgreSQL + MongoDB hybrid persistence
• AES-256-GCM encrypted searchable messaging
• RabbitMQ background job processing
• ElasticSearch full-text search
• RBAC & granular permission system
• Redis-based rate limiting
• Cloudflare R2 & Cloudinary hybrid storage
• GCP-ready CI/CD deployment pipeline
• 55+ automated unit tests

Node.js Express.js PostgreSQL MongoDB RabbitMQ Redis ElasticSearch Docker GCP

• Advanced Backend Architecture
• System Design
• Distributed Systems
• Docker & DevOps
• Cloud Infrastructure
• Machine Learning Fundamentals