Financial Technology

Trading Journal

A personal trading journal platform for tracking trades, analyzing performance metrics, and identifying patterns across multiple asset classes with real-time P&L tracking.

The Challenge

Traders needed a structured way to log trades, review mistakes, and measure performance over time without relying on scattered spreadsheets and manual calculations.

The Solution

Built a full-stack journal app with React frontend, NestJS backend, and PostgreSQL. Implemented interactive charts for equity curves and win-rate analysis, real-time P&L calculations, and a tagging system for trade setups and patterns.

Tech Stack

ReactNestJSPostgreSQLTypeScriptRechartsTailwind CSS

Key Achievements

Tracked 10k+ trades across 50+ active users

Automated P&L calculation with multi-currency support

Reduced trade review time by 70% with pattern tagging