GWGaoying Wang
Full Stack Developer · Available for work

Gaoying Wang

I build production applications across PropTech, AI, and FinTech — from an iOS app managing 100+ rental properties to automation pipelines that cut operational workload by 90%. UCLA MPP, independently shipping full-stack products end to end.

Download résumé
100+
properties managed
90%
ops cost cut
300+
US cities ranked
01 / chapters

full stack

01

RoomMagic AI

AI-powered interior design platform with 10+ styles, real-time image-to-image generation, and multi-angle consistency.

Next.jsPythonFastAPIAI/ML
02

Self-Hosted PMS

Internal property-management system that replaced Guesty across the portfolio — reservations, guest messaging, cleaning, and dashboards in one place. Cut cost from ~$100/month to about $1 per property.

Next.jsNode.jsPostgreSQL
03

Rental Booking Platform

Rental platform spanning short-, mid-, and long-term stays with a custom booking engine — real-time availability, instant quoting, and reservations end to end.

Next.jsNode.jsPostgreSQL
04

GnG Vacation Website

Marketing site built from scratch with technical SEO from the ground up — now ranks across 300+ U.S. cities and drives inbound inquiries every day.

Next.jsSEOWeb Performance
05

SellerPilot

Amazon seller analytics platform with Chrome extension and BSR tracking, built on Next.js and PostgreSQL.

Next.jsPostgreSQLChrome Extension
06

Quantitative Trading System

S&P 500 multi-factor strategy with a React dashboard. Sharpe ratio > 1.0 across 3 years.

PythonReactPostgreSQLData Analysis
02 / chapters

ai automation

01

GnG AI Chatbot

Guest-support chatbot that runs in-app messaging for 100+ properties. Answers in seconds and replies at a natural, human-like typing pace, resolving most inquiries on its own — cut support workload ~70% and saved thousands in staffing for under $7/month.

LLMNode.jsNLP
02

Automated Valuation Engine

Address-in, price-out valuation tool for the sales team. Scrapers pull comparable listings, then the engine projects short- vs long-term rents and ROI for any property — replacing manual pricing research.

PlaywrightWeb ScrapingPython
03

Cleaning Inspection AI

Computer-vision QA for turnovers. Cleaners upload photos and the model flags anything missing or wrong — unstocked toilet paper and soap, unmade beds, lingering mess — automating cleaning supervision and pre-check-in inspection.

Vision AILLMNode.js
04

WeChat Content Pipeline

AI content automation pipeline for a construction company using Playwright browser automation — cut operational workload by 90%.

PlaywrightAutomationLLM
05

Email Marketing Automation

Automated email-marketing pipeline driving 500+ bookings a month across the portfolio, with a scheduling bot coordinating turnovers.

Node.jsEmail APIScheduling
03 / chapters

ios

GnG Vacation iOS App

Full-featured iOS app managing 100+ short-term rental properties. Real-time booking, guest communication, and property dashboards.

SwiftNode.jsREST APIiOS
100+
properties
<30s
chatbot response
500+
bookings / month
01

GnG CRM

AI-powered CRM app for the sales team — leads, follow-ups, and pipeline stages with contract preview links, plus an AI assistant that summarizes clients, drafts messages, and plans next steps.

SwiftNode.jsLLMiOS
02

GnG Owner

Owner-portal app for property owners — income tracking, bookings, calendar, and listing updates, with an AI assistant answering questions on revenue, occupancy, and payouts.

SwiftNode.jsLLMiOS
04 / about

about

education

University of California, Los Angeles

2025

Master of Public Policy

gpa 3.986 / 4.0

University of California, San Diego

2023

BA Economics, Minor in Data Science

gpa 3.757 / 4.0 · Provost Honors 2020–2022

experience

  1. GnG Vacation

    02/2025 — present

    Full Stack Developer

    • Built and shipped three iOS apps — a guest app managing 100+ rentals, an owner portal, and an AI-powered CRM (Swift & Node.js)
    • Replaced Guesty with a self-hosted PMS — cut cost from ~$100/month to ~$1 per property
    • Deployed a guest-support AI chatbot for 100+ properties — replies in seconds at a human-like typing pace, ~70% less support workload for under $7/month
    • Built a computer-vision cleaning-inspection tool that flags missed turnover items from photos
    • Created an automated valuation engine: address in, short/mid/long-term rent projections out
    • Designed an email-marketing pipeline driving 500+ bookings/month
    • Shipped a multi-term rental site with a custom booking engine
    • Delivered the company website with SEO from scratch — daily inbound inquiries across 300+ U.S. cities
  2. LA District Attorney's Office

    07/2024 — 09/2024

    Attorney Assistant

    • Conducted program evaluation and policy data analysis
    • Supported legal research with quantitative methods
  3. Suzhou Shuozhi Environmental Technology

    05/2023 — 09/2023

    Assistant Project Manager

    • Developed predictive formula for brick sintering temperatures
    • Optimized manufacturing processes with data-driven approaches
PythonTypeScriptJavaScriptSwiftJavaRSQLReactNext.jsTailwind CSSNode.jsExpress.jsFastAPIPostgreSQLMongoDBDrizzle ORMAWSGoogle CloudVultr VPSDockerNginxPM2GitLLM IntegrationPrompt EngineeringAI ChatbotsImage GenerationPlaywrightWeb ScrapingChrome ExtensionsPythonTypeScriptJavaScriptSwiftJavaRSQLReactNext.jsTailwind CSSNode.jsExpress.jsFastAPIPostgreSQLMongoDBDrizzle ORMAWSGoogle CloudVultr VPSDockerNginxPM2GitLLM IntegrationPrompt EngineeringAI ChatbotsImage GenerationPlaywrightWeb ScrapingChrome Extensions
05 / contact

let's talk

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