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BEKNOWLEDGE / BE
Backend Engineering
APIs and services designed for correctness, resilience, and operational clarity.
API DesignAuthenticationCachingQueuesRedisObservability
Intermediate · 8 min
Idempotency in Distributed Systems
How to make repeated delivery safe when networks and workers fail in inconvenient ways.
Distributed SystemsReliabilityQueues
Intermediate · 7 min
Cache Invalidation Without Magic
Practical cache-aside patterns, freshness windows, and failure behavior for backend services.
CachingRedisBackend
Foundational · 6 min
Observability for Background Jobs
The minimum signals needed to understand asynchronous work without searching raw logs.
ObservabilityQueuesOperations