Backend engineering
A shop ledger page, 1899. Every line adds up.
How to Run Database Migrations Safely in a Production SaaS Application
Plan safer production database migrations with backward-compatible schema changes, staged rollouts, lock awareness, data backfills, and rollback planning.
4 min read
How to Add Redis Caching to an API Without Serving Stale Data Forever
Choose cache keys, TTLs, invalidation rules, and stampede protection for API responses while accounting for stale data and cache failures.
4 min read
How to Build a Reliable Webhook Handler with Retries and Idempotency
Build webhook handlers that verify signatures, acknowledge quickly, process events asynchronously, prevent duplicate side effects, and recover from failed deliveries.
4 min read
How to Find and Fix Slow Django API Endpoints
Diagnose slow Django REST API endpoints by measuring query time, identifying N+1 queries, improving pagination, and checking database indexes before changing infrastructure.
4 min read
How to Debug Intermittent API Failures in Production
Investigate APIs that fail intermittently by measuring latency, tracing dependencies, setting timeouts, and designing safe retries.
5 min read