Stock Trading Order Management App

I am building a web-based stock trading order management tool that will allow me to manage the entire trade lifecycle from a single dashboard. The app must stream real-time stock data, enable instant order placement and tracking, and provide up-to-the-second updates on every open, filled, or cancelled order. It should include a built-in portfolio section displaying positions, P/L, and historical performance, along with an options-trading module to complement the core workflow.

I will provide the necessary brokerage data API keys; you will advise on the appropriate tech stack and integrate the feeds so that prices, Greeks, and order statuses update without page reloads. Security is paramount; therefore, all trade instructions must be transmitted via encrypted channels and adhere to the broker's authentication protocols.

Deliverables:
• Responsive web UI (desktop/tablet/mobile)
• Real-time market data integration using the selected API
• Endpoints for order placement, modification, and cancellation, along with clear status updates
• Portfolio and P/L tracker with CSV/Excel export functionality
• Options trading interface covering at least basic calls and puts
• Complete source code pushed to a private Git repository, along with setup documentation
* README
Acceptance Criteria: Every order initiated from the app must appear in the broker's sandbox within microseconds, portfolio values ​​must align perfectly with API snapshots, and the production build must be free of console errors.

If you have experience with trading platforms, low-latency data handling, or integrating front-end frameworks (React/Angular/Vue) with back-end technologies like Node, Django, C++, Kafka, or similar, let's discuss this further. As soon as we agree on the milestones and timelines, I am ready to start the work.