Real-Time Options OI Scanner

I need a web-based scanner that focuses exclusively on options trading for the Indian market and tracks open interest in real time. The platform should stream live data, highlight sudden changes in OI, and push instant alerts so I can react without switching screens.

Historical data also matters to me: I want to look back over any selected period, chart OI changes alongside price, and export those slices to CSV for deeper analysis. On top of that, every filter—strike distance, expiry, volume, price range, IV, or any other numeric field coming from the feed—must be adjustable so I can create, save, and reuse custom scans on the fly.

Deliverables
• A browser-based interface that loads quickly on desktop and mobile
• Live OI feed for Indian index and stock options with sub-second refresh
• Alert engine (web push + email) driven by user-defined rules
• Historical module with at least one year of minute-level data, downloadable in CSV
• Settings panel to build, save, and edit unlimited custom criteria
• Deployment on my chosen cloud account with hand-off documentation and basic user guide

Acceptance criteria
• Data latency under one second from exchange feed to display
• All saved scans persist across sessions and trigger alerts reliably
• Historical export matches on-screen figures exactly

I’m open to your choice of stack—Python/Django, Node.js, React, or anything that keeps the UI snappy and the backend scalable—so long as the final product fulfils the requirements above. Let me know how you’d approach real-time data handling for Indian options and any similar projects you’ve completed.