Industry Overview
Fintech providers, logistics platforms, and SaaS products rely on Node.js for high-concurrency request handling and rapid service delivery. Interview processes for junior backend developers focus less on memorized syntax and more on practical engineering choices: handling race conditions, managing relational or document database connections, securing authorization endpoints with JWT, and structuring graceful error-handling middleware. Candidates who can explain how the V8 engine and libuv library work under the hood demonstrate valuable technical maturity.