Designing a Reliable Notification System for 1M+ Users (Push, SMS, Email)
Designing a reliable notification system for over one million users in fintech is crucial for maintaining user trust. The system must handle various challenges, including message duplication and provider outages, while ensuring timely delivery across multiple channels. A queue-based architecture is recommended to manage spikes in traffic and maintain system reliability.
- ▪Notifications are essential in fintech, as users rely on them for transaction confirmations and alerts.
- ▪A queue-based architecture allows for horizontal scalability and failure isolation during high traffic periods.
- ▪Implementing idempotency keys helps prevent duplicate notifications, which can frustrate users.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 951291) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Isaac Ojerumu Posted on May 24 Designing a Reliable Notification System for 1M+ Users (Push, SMS, Email) #architecture #backend #distributedsystems #systemdesign In fintech, notifications are not a “nice-to-have” feature. They’re part of the product’s trust layer. If a user transfers money and doesn’t get a confirmation, they panic. If an OTP arrives 3 minutes late, login fails. If price alerts come twice, users lose confidence fast.
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