AI APPLICATION ENGINEER

Hi, I'm Ethan Deng

AI Application Engineer & Full-Stack Developer

From architecture to AI, I build intelligent products with system thinking and full-stack engineering

6+

Years Architecture Experience

5+

AI Products Built

900+

Hours AI Engineering Practice

GET TO KNOW ME

From Architecture Designto AI Application Engineering

My background in architecture trained me to think in systems, structure, and user experience.

Now I apply that mindset to AI products: clarify the problem, design the flow, build the system, and ship the result.

Abstract architectural line drawing representing Ethan Deng's design background
  1. Architecture Background
  2. System Thinking
  3. AI Engineering
WHAT I DO

Building practical AI productsfrom idea to deployment

Focus on designing reliable systems, integrating modern technologies, and delivering practical software solutions.

01

AI Product Engineering

Turning ideas into AI-powered products from concept to deployment.

02

Full-Stack Applications

Building complete frontend, backend, and data systems.

03

LLM Application Systems

Building intelligent systems with LLMs, retrieval, and automation.

04

Data-Driven Products

Turning activity data into insights and measurable decisions.

05

AI Engineering Tools

Building intelligent assistants that improve engineering workflows.

PROJECTS

From Architecture to AIEngineering

AI applications, full-stack products, and agent experiments demonstrating end-to-end capability from concept to delivery.

AI ApplicationCompleted

AI IELTS Assistant

AI-powered English learning assistant built on WeChat Mini Program, featuring speech recognition and RAG-based feedback.

WeChat Mini ProgramCloud FunctionsDeepSeek APIASRRAG
Live DemoGitHubCase Study
Full Stack ProductCompleted

AI Study Tracker

Full-stack learning management system with dashboard, user workflow, and API design for tracking study progress.

ReactFastAPISQLAlchemySupabase
Live DemoGitHubCase Study
Full Stack ProductCompleted

Personal Portfolio Website

AI Application Engineer portfolio built with Next.js, Tailwind CSS, and Framer Motion to showcase projects and engineering capabilities.

Next.jsTypeScriptTailwind CSSFramer Motion
Live DemoGitHubCase Study
AI ApplicationIn Progress

DevInsight Agent

AI engineering assistant for project analysis, leveraging agent workflow and code understanding for AI collaboration.

LLMLangGraphMCPRAG
Live DemoGitHubCase Study
AI AgentPrototype

Architecture Proposal Assistant

AI assistant connecting architecture experience with AI engineering, using RAG knowledge base for technical document generation.

Document ProcessingRAGKnowledge BaseLLM
Live DemoGitHubCase Study
HOW I BUILD

From Idea to AI Product

A structured engineering workflow that transforms ideas into AI products through research, architecture, development, and iteration.

IdeaPRDArchitectureBuildShip
01

Discover

Understand users, problems, and real-world scenarios.

02

Define

Create PRD, user flows, and acceptance criteria.

03

Design

Define system architecture, data flow, APIs, and AI workflow.

04

Build

Implement frontend, backend, data systems, and AI features.

05

Ship

Deploy products, fix issues, and continuously iterate.

AI PRODUCT ENGINEERING STACK

Tech I Use

A curated ecosystem of technologies I use to build intelligent products.

React logo

React

Next.js logo

Next.js

TypeScript logo

TypeScript

Tailwind CSS logo

Tailwind CSS

Framer Motion logo

Framer Motion

Python logo

Python

FastAPI logo

FastAPI

SQLAlchemy logo

SQLAlchemy

Node.js logo

Node.js

OpenAI logo

OpenAI

DeepSeek logo

DeepSeek

LangChain logo

LangChain

RAG
AI Agent
Docker logo

Docker

Vercel logo

Vercel

GitHub logo

GitHub

GitHub Actions logo

GitHub Actions

AWS logo

AWS

Nginx logo

Nginx

TECH STACK

Engineering Stack

The core technologies and tools I use to design, build, and ship intelligent applications.

Frontend Engineering

Building responsive interfaces and reusable component systems.

React
React logo
Next.js
Next.js logo
TypeScript
TypeScript logo
Tailwind CSS
Tailwind CSS logo
Framer Motion
Framer Motion logo

Backend Engineering

Designing APIs, databases, and scalable application architecture.

Python
Python logo
FastAPI
FastAPI logo
SQLAlchemy
SQLAlchemy logo
PostgreSQL
PostgreSQL logo
Supabase
Supabase logo

AI Engineering

Building intelligent workflows with LLMs, RAG, and AI agents.

OpenAI
OpenAI logo
DeepSeek
DeepSeek logo
RAG
RA
LangChain
LangChain logo
LangGraph
LangGraph logo

Data & Database

Managing structured data and AI application storage systems.

MySQL
MySQL logo
PostgreSQL
PostgreSQL logo
Vector Database
Ve
Supabase
Supabase logo

Infrastructure & Deployment

Deploying reliable products from development to production.

GitHub
GitHub logo
Docker
Docker logo
Vercel
Vercel logo
Render
Render logo

Development Workflow

Tools and workflows for efficient engineering development.

VS Code
VS Code logo
Trae
Trae logo
Codex
Codex logo
Apifox
Apifox logo
Obsidian
Obsidian logo
WHY WORK WITH ME

Built for realAI product delivery

I combine product thinking, engineering execution, and AI capabilities to build practical software products.

Product Thinking

Starting from user needs and real outcomes, not from writing code.

Full-Stack Delivery

Delivering end-to-end products across frontend, API, database, and deployment.

AI Integration

Shipping practical AI features — RAG, prompt systems, and workflow automation.

Engineering Workflow

A structured process from PRD and architecture to implementation and iteration.

Communication

Keeping goals, scope, and trade-offs clear for predictable collaboration.

Ownership

Driving real product outcomes, not just shipping code, with continuous improvement.

CONTACT

Let's BuildSomething Together

From Architecture Background to AI Application Engineering, I'm open to opportunities, collaborations, and building intelligent products.

Open to Opportunities
AI Application Engineer rolesCollaborationPortfolio Projects

Let's Connect

Have an idea, an opportunity, or a product challenge? I'd love to hear what you're building.

Email
hello@ethandeng.dev
GitHub
github.com/ethandeng
Phone
+86 138 0000 0000
Location
Shanghai, China

Architecture ThinkingAI EngineeringProduct Building

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