A client was following a market spread across multiple online platforms, with 5000+ listings to monitor. Without a dedicated tool, knowing their competitive position and reacting quickly to relevant opportunities was impossible.
The whole market in one place : 5000+ listings tracked across multiple platforms, refreshed automatically all day long.
The market at a glance : Price drop, new listing or simply watching: every listing shows its live status.
Filters and favorites : Instantly find the listings that matter among thousands of entries.
Discreet and reliable : Synchronization at a human pace, without overloading source platforms, no overnight sync.
Delivered in 1 month : From request to first real use, scope held.
Used every day : The client tracks his 5000+ listings daily, with real time savings.
No more missed opportunities : Alerted as soon as a price moves or a listing appears, he reacts in time instead of finding out too late.
Real wins : Opportunities seized that would have been missed without the tool.
FastAPI + SQLAlchemy backend with O(1) caching and eager loading (zero N+1 queries), React interface with lazy loading, Docker + Nginx on a VPS, automated deployment.