BackendTable-stakesAround since 2010
Express.js
Also written as Express
A minimal, unopinionated web framework for Node.js used to build APIs and web servers — routing, middleware, and request handling with few built-in conventions.
Think of it like
Like a bare workbench with a good set of tools laid out — it doesn't tell you how to organize the shop, you decide.
Junior or senior?
Junior sounds like
Knows 'app.get' and 'app.post' and little else.
Senior sounds like
Can explain the structure and conventions their team layered on top of Express's unopinionated core — error handling, folder structure.
Ask them
“How did your team structure a larger Express codebase — folder layout, error handling, shared middleware?”