trahoangdev
Portfolio

Skills & Projects

Selected builds across frontend, backend, product engineering, and applied AI—paired with the tools used to ship them.

Projects

DocuFlow AI

5 Members
FCAJ Internship, 2026
RoleProject Leader / Integration Owner

Serverless, event-driven platform on AWS that securely processes PDF, JPG and PNG invoices and receipts. Amazon Textract extracts the financial data, an AI proxy normalizes it, and low-confidence documents are routed through a human review workflow.

  • React 19
  • TypeScript
  • AWS SAM
  • Amazon S3
  • AWS Lambda
  • +6 more
DocuFlow AI preview

VALSEA Classroom Copilot

Solo
VALSEA EdTech Hack Sprint
RoleSolo Builder

Speech-first classroom copilot for Vietnamese–English code-switching lectures. Realtime mic → VALSEA ASR → structured notes, key terms, English recap, quizzes, exports and session history.

  • Next.js
  • TypeScript
  • Fastify
  • WebSocket
  • Realtime ASR
  • +2 more
VALSEA Classroom Copilot preview

TAIKHOANXIN

2 Members
RoleCo-founder & Frontend Developer

A digital access marketplace offering affordable licensed accounts through fast purchasing flows, streamlined product discovery, and dedicated customer-facing and admin experiences.

  • Next.js 14
  • TypeScript
  • Tailwind CSS
  • Ant Design
  • SCSS
  • +4 more
TAIKHOANXIN preview

LUXE WEAR AI

3 Members
Late 2025
RoleOwner & Frontend Developer

Multi-tenant SaaS for building, deploying and monitoring AI agents. Agents answer from a tenant’s own knowledge base through RAG, can be embedded as a chat widget, and are tracked with usage and analytics dashboards.

  • Next.js 14
  • TypeScript
  • Gemini AI
  • Tailwind CSS
  • Vector DB
  • +6 more
LUXE WEAR AI preview

DevOrbit - Blog Platform

Solo
RoleOwner

An open-source blog platform for developers: Markdown articles with syntax highlighting, SEO optimization, dark mode, GitHub-powered comments and a reading experience built around typography.

  • Next.js 16
  • React 19
  • TypeScript
  • Tailwind CSS
  • Markdown
  • +3 more
DevOrbit - Blog Platform preview

Personal Portfolio

Solo
RoleOwner

This website: a high-performance portfolio built with Next.js 16 and Tailwind CSS 4, with a feature-based architecture, a file-based MDX blog, RSS, structured data, a Redis-backed visitor counter and an automated test and lint pipeline.

  • Next.js 16
  • React 19
  • Tailwind CSS 4
  • TypeScript
  • Redis
  • +1 more
Personal Portfolio preview
Tool Stack

Tools I build with

The core tools behind each build, grouped by what they are used for: cloud and AI, frontend, backend, data, and the platforms they ship on.

Cloud & AI

7 tools
AWS

Serverless on Lambda, Step Functions, S3, DynamoDB and Textract, as in DocuFlow AI.

Gemini

Answer generation in the Luxe Wear AI agent platform.

Hugging Face

Open models and datasets for experiments.

LangChain

Agent and retrieval workflows.

OpenAI API

LLM integration for agents and automation.

Pinecone

Vector search behind retrieval-augmented answers.

Python

Agent, automation and data experiments.

Frontend

5 tools
JavaScript

Core language for interactive web experiences and modern tooling.

Next.js

App router, streaming server components, and edge-first mindset.

React

Component-driven UI architecture and concurrent rendering.

Tailwind CSS

Design system tokens with utility-first ergonomics.

TypeScript

Type-safe patterns, generics, and domain modelling.

Backend

3 tools
Express.js

Minimal and flexible Node.js web framework for APIs and middleware.

NestJS

Progressive framework for scalable, enterprise-grade server-side apps.

Node.js

Lightweight APIs, automation scripts, and platform tooling.

SQL

2 tools
MySQL

The world's most popular open-source database.

PostgreSQL

Relational backbone with JSON support and materialized views.

App

4 tools
Docker

Container workflows, reproducible environments, and CI.

Figma

The standard for interface design and prototyping.

GitHub

Collaboration, reviews, and open-source presence.

VS Code

Daily driver editor tuned for rapid experimentation.

NoSQL

3 tools
MongoDB

Document-based database for flexible schema and scalability.

Redis

In-memory data store for caching, sessions, and real-time analytics.

Supabase

Open source Firebase alternative. Postgres, Auth, Realtime.

Platform

2 tools
Railway

Instant deployments, managed databases, and effortless scaling.

Vercel

Edge-first deployment platform with instant previews and analytics.

Open to junior and fresher roles in cloud and AI engineering.

I build serverless systems on AWS and AI agent products, and I like working with teams that care about shipping and verifying what they ship. Also happy to collaborate on open-source or hackathon projects, or just talk agents, cloud and product engineering.