TINATSEIPORTFOLIO '26
Back to Projects
Full-Stack / FinTech

Fintasy

Competitive Paper Trading Platform · August 2025 – December 2025

ReactNext.jsNode.jsPostgreSQLAlpaca APIEloGitHub ActionsDocker
Fintasy

01 // THE PROBLEM

Paper trading demos usually break once more than a handful of users hit live quotes, rankings, and portfolio math at the same time.

02 // THE SOLUTION

Engineered an N-Tier React, Next.js, Node.js, and PostgreSQL trading app that simulates real-time execution and portfolio management for 1000+ concurrent users. Alpaca supplies live and historical quotes. Ranked tournaments use Elo on portfolio performance. GitHub Actions and Docker handle CI/CD.

03 // DEEP DIVE

School project

August 2025 – December 2025

What shipped

  • --N-Tier competitive trading application using React, Next.js, Node.js, and PostgreSQL, simulating real-time market execution and dynamic portfolio management scalable to 1000+ concurrent users.
  • --Alpaca API integration for live and historical market data, real-time quote synchronization, and continuous portfolio valuation.
  • --Ranked tournament feature with an Elo rating algorithm based on portfolio performance, realized gains, and investment allocations.
  • --Automated CI/CD with GitHub Actions and Docker for containerized production hosting.