@theskilledcoder Great list. One thing I often see in Java interviews: candidates know the libraries, but struggle to explain *when* and *why* to use them. That’s usually what makes the difference.

MICROSERVICES ARCHITECTURE IN SYSTEM DESIGN → Microservices Architecture is a system design approach where an application is built as a collection of small, independent, and loosely coupled services. → Each service focuses on a single business capability and can be developed,

If you want to get started with system design (in 2026), learn these 16 concepts...

Today I learned about the CQRS patternI explored: • Traditional CRUD architecture & its bottlenecks • Why mixing reads + writes breaks scalability • How CQRS separates Command & Query models • Role of Event Sourcing, Read DB, Write DB • Complete AWS & Azure CQRS system

Two microservices, A and B, share the same database for some entities due to legacy design. Microservice A makes a change to the entity, but Microservice B does not reflect the change immediately, leading to inconsistent behavior. How would you refactor the system to solve the