Nexus Trader

Context

Nexus Trader is an automated trading platform with real-time dashboards. The project combines a React/Vite frontend with a Node.js/Express backend, real-time communication via Socket.IO, MySQL database and Python automation scripts.

Problem

Trading workflows require realtime visibility, automation logic and structured access to market data. Without a dedicated platform, traders rely on disconnected tools, manual spreadsheets and error-prone processes.

Objectives

Real-time dashboards with live market data via WebSocket. Automated trading logic without manual intervention. Reliable full-stack infrastructure with historical data persistence. Structured access through internal APIs.

Technology Stack

React, Vite, Tailwind CSS for the frontend. Node.js, Express, Socket.IO for the backend. MySQL for persistence. Python for automation workers. Linux VPS infrastructure with GitHub Actions CI/CD.

Architecture

React client communicates via Socket.IO and REST API to the Node.js/Express server, which coordinates MySQL storage and Python workers for async market processes.

Technical Challenges

Real-time data synchronization with low latency. Connection recovery and socket state management. Consistent persistence of financial historical data. Separation between trading logic and presentation layer.

Solutions

Socket.IO with automatic reconnection for bidirectional communication. Modular architecture separating dashboards, trading logic and storage. Python workers for async market processes decoupled from request-response cycle.

Results

[Metric pending] — Performance, volume and uptime metrics will be added when available.

Learnings

Real-time communication requires explicit connection state management. Homogeneous full-stack architecture (React/Node.js/MySQL) simplifies maintenance. Async processes must be decoupled from the request-response cycle.

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