React Developer Needed – Connect AI Options Trading App to Live Market Data & Broker API
Project Overview I have a fully built React (JSX) mobile trading application called OPTIX — an AI-powered options trading platform. The app UI, AI analysis engine, trade signals, portfolio tracker, risk calculator, and learning center are all complete and working. What I need is a developer to connect the app to live market data and optionally a broker API, then deploy it as a private personal web app I can access from my phone like a native app. Important: This is a personal tool — not a commercial product or public platform. All you need to do is wire up the data sources and deploy it. The app code itself is done. What Needs to Be Done TASK 01 Live Market Data Replace the simulated price/IV data with real-time quotes from Polygon.io (free tier is fine). Must include stock price, options chain, IV, IV Rank, Greeks, and volume. TASK 02 Deploy to Vercel Deploy the app to Vercel (free tier) as a private, password-protected web app. I will provide my Anthropic API key as an environment variable. TASK 03 Mobile PWA Setup Configure the app as a Progressive Web App (PWA) so I can add it to my iPhone home screen and use it like a native app — offline splash screen, icon, full-screen mode. TASK 04 (Optional +$75) Broker API Integration Connect to Tastytrade or Tradier API so my actual open positions display in the Portfolio screen instead of sample data. Read-only access only — no order execution needed. Tech Stack Already in Place React (JSX) Tailwind CSS Anthropic Claude API Polygon.io Vercel PWA / Service Worker Tastytrade API Tradier API The existing app is a single .jsx file. I will share it with you at project start via a private GitHub repo or direct file transfer — your preference. What I Will Provide Complete source code for the OPTIX app (single JSX file, ~700 lines) Anthropic API key (for Claude AI analysis — already integrated) Polygon.io API key (I will create a free account before we start) Broker credentials if pursuing Task 04 Vercel account access for deployment Clear written feedback within 24 hours of any milestone submission What I Expect From You Share your approach/plan before starting — brief message is fine The deployed app must work correctly on iPhone Safari (iOS 16+) Code should be clean and commented — I may need to update the watchlist symbols myself later Communicate if anything is unclear rather than guessing Final delivery includes the updated source file AND the live Vercel URL Budget $150 TASKS 01–03 ONLY $225 TASKS 01–03 + BROKER READ $300 ALL TASKS + DOCUMENTATION I am happy to discuss scope before setting a final milestone. Payment released upon successful deployment and confirmation that all required tasks work as described on my phone. To Apply Please answer these three questions in your proposal — applications without answers will not be considered: Have you worked with the Polygon.io options data API before? If so, briefly describe what you built. Have you deployed a React PWA to Vercel? Can you share a live example or describe the setup? What is your estimated timeline for Tasks 01–03? Keep your proposal concise. I am not looking for the cheapest bid — I am looking for someone who clearly understands the scope and can execute cleanly without hand-holding. This is a private personal project. NDA available upon request. All API keys and credentials will be shared securely via Upwork Messages or a private GitHub repository — never in public channels. Apply tot his job Apply To this Job