Node.js lets a team run JavaScript on both sides of the application, which is why it dominates in startups and in projects with tight timelines. The work is backend engineering proper: API design, authentication, queues, and a database layer that is as often MongoDB as it is Postgres. Node developers who understand the event loop and can reason about blocking operations stand apart from those who have only assembled Express routes. In Pune the hiring skews toward smaller product companies and agencies rather than the large services firms.