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Firstsource

JavaScript Developer Intern

InternshipIn OfficeGurugram, Haryana3 months25K/mo1 openingImmediate / Rolling
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About this internship

Join Firstsource in Gurugram as a JavaScript Developer Intern. This entry-level web development internship is built for candidates early in their journey who are eager to turn HTML, CSS and JavaScript basics into production web experience on real, user-facing products. As a JavaScript Developer…

Skills you'll use

JavaScriptES6+DOMREST APIsHTMLCSS

What you'll do

  • writing modern ES6+ JavaScript
  • manipulating the DOM and handling events
  • integrating third-party and REST APIs
  • debugging and improving browser performance
  • Collaborate with the team and document your work
  • Take ownership of assigned web features and act on code-review feedback

Who can apply

  • Pursuing or recently completed a degree in CS / IT / any relevant stream — 2026 freshers & final-year students welcome
  • Foundational knowledge of JavaScript, ES6+, DOM (or a strong willingness to learn them)
  • Understanding of HTML, CSS and JavaScript basics; familiarity with Git is a plus
  • Good communication, problem-solving and a genuine eagerness to learn
  • Based in or willing to work from Gurugram
  • A portfolio, personal website or web project you can show (a plus, not mandatory)

Perks & benefits

Flexible working hoursInternship CertificateLetter of RecommendationMentorship from experienced engineersReal-world web project experience

Interview & selection process

2 rounds — typical selection flow for this role:

  1. 1Application screening & resume shortlisting by the talent team
  2. 2Technical interview on web development fundamentals and DSA basics

About Firstsource

Firstsource is a it services company with a strong, growing engineering presence in Gurugram — one of India's biggest hubs for early-career tech opportunities. The team believes the best way to grow is by building, which is why web development interns here are given real ownership from the start…
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