Nucleus Software

React.js Developer Intern

InternshipHybridKolkata, West Bengal4 months11K/mo2 openingsImmediate / Rolling

About this internship

Kick-start your web development career with Nucleus Software as a React.js Developer Intern in Kolkata. If you learn fastest by shipping code, this internship gives you real responsibility, real mentorship and real front-end / back-end projects from day one. As a React.js Developer Intern, you…

Skills you'll use

ReactJavaScriptReduxHooksREST APIsCSS

What you'll do

building components with React and Hooks
managing state with Redux / Context
consuming REST / GraphQL APIs
writing reusable, testable UI code
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 React, JavaScript, Redux (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 Kolkata
A portfolio, personal website or web project you can show (a plus, not mandatory)

Perks & benefits

Internship CertificateLetter of RecommendationMentorship from experienced engineersReal-world web project experienceHands-on with modern web tools & frameworks

Interview & selection process

3 rounds — typical selection flow for this role:

1Application screening & resume shortlisting by the talent team
2Online coding / web-fundamentals assessment (HTML, CSS, JavaScript)
3HR discussion — stipend, start date, expectations and offer

About Nucleus Software

Nucleus Software operates in the fintech space and actively invests in early-career engineering talent across Kolkata. Its culture is practical and learning-oriented: mentorship, code reviews and real project work are part of everyday life, and interns are treated as genuine members of the…

Visit Nucleus Software’s official website ↗

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