Analytics API Service
Behavioral tracking and insights pipeline for multi-platform clients
Overview
A high-throughput analytics ingestion API capable of processing millions of events per day from web and mobile clients, with real-time aggregation pipelines and a dashboard for client behavioral insights.
Multiple client applications needed behavioral analytics but existing third-party solutions were prohibitively expensive at scale and didn't allow custom event schemas. Client-specific data sovereignty requirements also ruled out SaaS options.
Designed an event ingestion API using NestJS with async processing via RabbitMQ queues, time-series storage in TimescaleDB, and a configurable aggregation engine. Built a multi-tenant dashboard for each client to visualize their user funnels.
Processing 2.3M events/day across 8 client integrations with p99 ingestion latency under 45ms. Reduced client analytics costs by ~70% compared to equivalent third-party solutions.
