Final-year Information Technology student at the University of Information Technology — VNUHCM, focused on backend and full-stack software engineering.

I mainly work with TypeScript, Node.js, Express, React, React Native, MongoDB, PostgreSQL and Redis.

Currently seeking a Software Engineering / Backend Engineering Internship where I can contribute to production systems, receive code-review feedback and develop stronger engineering practices.

A full-stack event-ticketing system consisting of:

• React attendee and organizer web applications
• Node.js and TypeScript backend
• React Native QR scanner
• Redis-based temporary seat reservations
• BullMQ expiration jobs
• Server-Sent Events for real-time updates
• Offline QR verification using RSA signatures and TOTP

Live application:https://tickify.tech
Repository:https://github.com/psang39/tickify

• Booking and reservation logic
• BullMQ order-expiration jobs
• Server-Sent Events service
• Offline QR validation
• System architecture and booking-flow documentation

Concurrency · Redis · BullMQ · SSE · Authentication · RBAC · Caching · Offline synchronization · Deployment

A team-developed React Native application.

My contributions included:

• Gemini-powered article Q&A and text refinement
• Google Speech-to-Text integration
• Google Cloud Text-to-Speech integration
• Article recommendations
• Server-backed draft autosave
• Audio playback and progress controls
• Chat history, loading states and error handling
• Supporting Node.js API endpoints

Repository:https://github.com/23520904/Aurews

An experimental MERN project comparing uncached API requests with Redis and HTTP caching strategies.

Topics explored:

• Cache-aside pattern
• Cache invalidation
• Stale-data behaviour
• Redis caching
• HTTP caching
• k6 performance testing

Repository:https://github.com/psang39/mern-cache-mongo

An automated-testing project covering UI, API, performance and CI workflows.

Technologies and tools:

• Java
• Selenide
• TestNG
• Postman and Newman
• JMeter
• GitHub Actions
• Allure Report

Repository:https://github.com/psang39/wc-automationtest

• TypeScript and JavaScript
• Node.js and Express
• REST API development
• MongoDB and Mongoose
• PostgreSQL and Prisma
• Redis and BullMQ
• Authentication and authorization
• API testing and debugging

• React
• React Native and Expo
• TanStack Query
• Zustand
• Axios
• Tailwind CSS

• Git and GitHub
• Docker
• Linux
• Nginx
• PM2
• GitHub Actions
• Postman
• k6

• NestJS
• PostgreSQL and Prisma
• Backend system design
• Automated API testing

University of Information Technology — VNUHCM

Bachelor of Information Technology
Expected graduation: March 2027
GPA: 8.79/10

IELTS: 7.5

• LinkedIn: https://www.linkedin.com/in/psang9105/
• Email: nguyenphuoc.sang393@gmail.com