Open to opportunities

Teo Zi Hui, Shelia

Software Engineer

Building things that matter, one commit at a time.

About me

Building at the intersection of craft & code

I'm a Year 3 Computer Science student at the National University of Singapore, graduating December 2026. I love building products that people actually use, and I've been fascinated by the power of AI tools to reshape the way we build — automating workflows and accelerating what's possible, even for developers.

I'm currently interning at Stripe as a Software Engineer under the Cards team. Previously, I interned at PayPal under the Global Compliance team. Outside of work and school, I compete in hackathons and am currently helping organize the NUS SoC TIPs Program 2026 — and somewhere in between, I aspire to build my own startup, a tool that would benefit the lives of many people, including myself.

Looking forward, I am open to full-time developer opportunities in Singapore or the United States upon graduation.

🇸🇬 SingaporeNUS '26Hackathon Enthusiast✈️ Loves TravellingOpen Source Curious
Shelia Teo at Niagara Falls

📍 Niagara Falls

Where I've worked

Experience

Stripe

Incoming SWE Intern, Cards

May 2026

    PayPal

    Full-Stack SWE Intern, Global Compliance

    May – Dec 2025
    • Extended customer onboarding system with new compliance flows using Java and Spring Boot.
    • Built a compliance SME chatbot with a RAG pipeline that autonomously selects tools based on query context, cutting engineers' solution-discovery time by 30%.
    • Cleaned and structured data from Confluence, Slack, and GitHub Catalog into BigQuery as the knowledge base; developed a combined MCP server aggregating tools across multiple servers to enable end-to-end query resolution.
    • Deployed a configurable Slack bot from internal QA testing to the live PayPal workspace, now used across teams.

    Selective programs

    Programs Attended

    Jane Street INSIGHT Program — SWE Track

    2026

    JPMorgan Winning Women Program

    2025

    Discover Citadel

    2025

    WiseWomenCode

    2025

    Things I've built

    Projects

    ★ Featured
    Synthesize
    AI-driven user feedback analysis tool with a real-time dashboard. Integrates GPT-4o with CO-STAR prompt engineering to surface actionable product insights at scale.
    ReactNext.jsFastAPIOpenAIFirebaseTypeScript
    GuestNote
    Desktop address book application for managing guest and contact information, built as part of a collaborative software engineering project.
    JavaJavaFXOOP
    React Weather App
    A clean React-based weather application that fetches and displays real-time weather data by location.
    ReactJavaScriptREST API
    To-Do List App
    A minimalist to-do list web app for managing daily tasks, with a focus on clean UX and simplicity.
    HTMLCSSJavaScript

    Competing & creating

    Hackathons

    NUS Fintech Hackathon

    2024

    TrustChain Lite

    Blockchain-based trust verification system for financial transactions.

    🥈 1st Runner Up

    OGP Build For Good Environment

    2024

    PackBack

    Mobile app for packaging waste redistribution and circular economy.

    Participant

    Morgan Stanley Code To Give

    2025

    DonorConnect

    FastAPI + Gemini LLM backend for intelligent donor tracking and engagement.

    Participant

    Tools of the trade

    Skills

    Languages
    PythonTypeScriptJavaScriptJavaSQLOCaml
    Frontend
    ReactReact NativeNext.jsTailwind CSS
    Backend
    FastAPISpring BootNode.js
    Data & AI
    PostgreSQLBigQueryRAGOpenAI APIGemini API
    Tools
    FirebaseSupabasePostmanGitMCP