I’m launching a lightweight FinTech SaaS aimed at retail investors and need a full-stack developer who can move fast. The core build includes secure user login, a responsive dashboard, an Options Greeks calculator that can scale from basic to highly customizable real-time calculations, plus a small set of API integrations for market data. My preferred stack is React / Next.js on the front end and either Node or Python on the back end, backed by MongoDB or Postgres—whichever you feel delivers the best performance. The interface has to feel clean, snappy, and fully mobile-friendly. Deliverables I’m expecting within 2–3 weeks: • Production-ready web app deployed to a cloud host • Source code with clear setup documentation • A Greeks calculator module that supports simple through advanced use cases • Basic data API hookup and test endpoints I’m working with a budget in the ₹30k–₹60k range and will shortlist based on relevant past work, so please send links or live demos that show you’ve shipped similar React/Next.js or FinTech projects. “Hi, I want to build a small FinTech SaaS tool with real-time market news integration. Here are the exact requirements: Core Features 1. User Login + Signup 2. Dashboard 3. Options Greeks Calculator (Delta, Gamma, Theta, Vega, IV) 4. Basic Options Chain / OI View 5. Subscription System (Razorpay) Real-Time News Features 6. Real-time market news feed Twitter/X API (specific finance/crypto accounts) Google News RSS (Moneycontrol, ET, CNBC, Bloomberg) NewsAPI.org (free tier) 7. News Categories: Indian Market News F&O News Crypto News Global Market News 8. Filters & Alerts Keyword alerts (e.g., "Nifty", "BTC", "Fed") Watchlist-based news Fast auto-refresh Tech Stack Frontend: React or Next.js Backend: Node.js or Python FastAPI Database: MongoDB or PostgreSQL Hosting: Vercel / AWS / DigitalOcean Important UI clean, fast, simple (mobile-friendly) Timeline: 2–3 weeks Budget: ₹25,000–₹45,000 only for the news + tool MVP Show me your previous work and timeline. Let me know your availability.”