Financial App

**Title:** Full-Stack Developer Needed — Dividend Tracking Web App **Contract type:** Fixed price, paid in four milestones **Timeline:** 6–10 weeks **Location:** Open to worldwide applicants --- **Overview** I've built the complete frontend for a dividend tracking web app — a portfolio and income tracking tool built specifically for dividend and income ETF investors. The frontend is done. I need an experienced full-stack developer to build the backend, connect it to the frontend, integrate third-party services, and deploy the finished product. I have a full 13-section technical brief ready to share immediately with shortlisted applicants. This is a well-scoped, well-documented project — not a vague idea. --- **What is already built** - Complete React frontend — six fully designed and interactive screens - Full design system — colors, typography, and component styles - mockData.js — every API endpoint clearly documented with comments ready for wiring - Landing page — built and ready to deploy - Logo and brand identity — finalized --- **What needs to be built** 1. Backend API — Node.js + Express, all endpoints from the mockData.js file 2. Database — PostgreSQL schema for users, portfolios, holdings, goals, and affiliates 3. Authentication — signup, login, JWT sessions, password reset 4. Live financial data — integrate Tiingo or Polygon.io for real-time prices and dividend data 5. Stripe integration — subscription billing (Free and Pro tiers), promo codes, affiliate commission tracking, webhooks 6. Affiliate and creator system — unique promo codes, referral tracking, commission dashboard 7. Kit (ConvertKit) email integration — waitlist and transactional emails 8. ETF lookup tool — public-facing search page using live Tiingo data 9. Deployment — Railway or Render, staging and production environments, CI/CD via GitHub Actions --- **Tech stack** - Frontend: React (already built — do not rebuild) - Backend: Node.js + Express - Database: PostgreSQL with Prisma ORM - Auth: JWT (access + refresh tokens) - Financial data: Tiingo API - Payments: Stripe - Email: Kit (ConvertKit) API - Hosting: Railway or Render - Domain: thedrip.app (already registered) --- **Payment structure** Fixed price contract paid across four milestones. Full milestone breakdown and budget shared with shortlisted candidates alongside the technical brief. Each milestone payment released after review and approval — no payment without working deliverables. --- **What I will provide** - Complete React frontend codebase - mockData.js with every API endpoint documented - Full 13-section technical developer brief - Logo assets and brand guidelines - Tiingo API key, Stripe account access, Kit API key - Fast responses — within 24 hours Monday to Friday --- **What I am looking for** - 3+ years full-stack experience with Node.js and PostgreSQL - Prior experience building fintech, portfolio tracker, or data-heavy applications - Comfortable integrating financial data APIs - Strong communicator — weekly written update every Monday is required - Available for four short milestone review calls (30 min each) --- **Deliverables at completion** - Full source code in a private GitHub repo with me added as owner - .env.example file with all environment variables documented - Prisma schema or SQL migration files - README with local development setup instructions - Staging environment for review before production deploy - App live at thedrip.app - One 30-minute handover call --- **Please include in your proposal** 1. Walk me through how you would structure the PostgreSQL schema for a user with multiple portfolios, each with multiple holdings and a dividend history. 2. Which financial data API would you recommend — Tiingo, Polygon.io, or something else — and why? 3. How would you approach security for user portfolio data — JWT expiry, API key storage, and data at rest? 4. How long would it realistically take to wire all the mockData.js endpoints to a live database once the schema is set up? 5. Share one example of a fintech or data-heavy app you have built — stack and your specific role. Proposals without answers to all five questions will not be considered.