Prior to launch, the platform faced critical security flaws (auth bypasses, unauthenticated IDORs), chat message leakage, staircase database latency, and background cron job bottlenecks.
Hardened security with RBAC & NoSQL sanitization, isolated chat room sockets, implemented Redis caching, optimized MongoDB indexes/pools, and parallelized Agenda background jobs.
Eliminated chat leaks, achieved sub-10ms cache response times, reduced p99 latency from 2277ms to 240ms, and cut background job times by 90%.
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