HashMap Internals in Java: Why It Breaks in Production and How to Fix It
1. Production Problem — Latency Spikes Inside a Payment Aggregation Service A payment aggregation service processing tens of thousands of […]
Backend Engineering
Java Concurrency & Multithreading — Deep Dive
If you’ve worked with backend systems, you’ve already used concurrency—whether you realized it or not.
But most developers face this gap:
– They know the terms
– But don’t fully understand why problems happen and how to reason about them
This blog bridges that gap.