~/shelton/profile.tsx

Shelton Cui

// 01 — about

Who I am

Full-stack engineer with 4+ years of experience building web applications on the cloud. I care about performance and turning complex data into clean, usable interfaces. Work has spanned anti-fraud intelligence platforms, collaborative SaaS tooling, and custom e-commerce.

Outside of work: spearfishing and camping. Which probably says something about how I approach problems — I like going deep, staying calm under pressure, and figuring things out in environments that aren't always predictable.

// 02 — experience

Where I've worked

Full-stack Developer, TechScrum

Melbourne

Project management SaaS platform for distributed teams to track work and collaborate in real time.

Designed a unified component library on Tailwind CSS to standardise UI patterns across the product.
Refactored a legacy codebase into a modular architecture, reducing technical debt and unblocking long-term maintainability.
Architected a real-time update system over WebSocket, eliminating redundant polling and cutting MongoDB read load by ~40%.
Built a serverless pipeline with S3, SQS, and Lambda for asynchronous file processing and reliable database ingestion.
Implemented AWS Cognito for identity federation and SSO with OAuth 2.0 across multiple third-party providers.
Developed AI-powered input optimisation via LLM function calling, turning natural language into structured database commands.
Achieved 80%+ test coverage with Jest and React Testing Library; led code reviews and enforced team standards.

React · TypeScript · Next.js · Tailwind · Node.js · Express · MongoDB · WebSocket · Redis · AWS (Fargate, Cognito, S3, SQS) · Jest · Cypress · GitHub Actions

// 03 — projects

What I've built

2025Production · Solo

CamperDive

An online store for an Australian spearfishing brand, rebuilt from scratch.

2025Applied LLM

Settly AI

An AI assistant that walks first home buyers through Australian property settlement.

2025Serverless · Solo

WP Campsite Checker

Watches Wilsons Promontory campsites and emails you the moment a spot opens up.

2022Full-stack · Side

Meetly

A marketplace for anyone to publish events and sell tickets to them.

// 04 — skills

The kit

Languages: TypeScript · JavaScript · Python · HTML · CSS
Frontend: React · Next.js · Tailwind CSS · Styled Components · Redux · GraphQL
Backend: Node.js · Express · REST APIs · WebSocket · SSE
Applied AI: LangGraph · LangChain · OpenAI API · RAG pipelines · vector databases · prompt engineering
Databases: PostgreSQL · MongoDB · MySQL · Redis
Cloud & DevOps: AWS (EC2, Lambda, S3, API Gateway, SQS, Cognito) · Vercel · Docker · GitHub Actions
Testing: Jest · React Testing Library · Cypress

// 05 — credentials

Paperwork

University of Adelaide — Master of Computing and Innovation, 2022 (GPA 6/7)

AWS Certified Solutions Architect — Associate, 2026