Abu Hanif Staff Software Engineer Home💰 Scope: $11,000 Scope
🏢 Client / Engagement: Nexus Cloud Platform
⚡ Verified Production SLA: -68% CPU • 0 Deadlocks Observed
🛠 Core Technologies: PostgreSQL • PgBouncer • Query Tuning • Linux Performance
Executive Architecture Summary
Diagnostic query profiling, connection pool tuning, and index redesign eliminating deadlocks for 3.5M active accounts.
The Challenge\n\nA SaaS platform faced persistent connection pool exhaustion and frequent transaction deadlocks during daily morning traffic spikes.\n\n## Solution\n\n- Conducted EXPLAIN (ANALYZE, BUFFERS) profiling on 50 highest-impact query paths\n- Rebuilt composite B-Tree indexes and partial indexes\n- Installed PgBouncer with transaction pooling\n- Optimized foreign-key cascaded deletes\n\n## Results\n\nReduced median CPU utilization from 92% to 28%; zero connection drops or deadlocks observed over 12 consecutive months.
Technologies Deployed:
PostgreSQLPgBouncerQuery TuningLinux Performance
Have a similar architecture challenge?Abu Hanif is available for targeted audits, performance tuning, and greenfield platform builds.