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Sigmoid

React.js Developer Intern

InternshipHybridMumbai, Maharashtra6 months17K/mo4 openingsImmediate / Rolling
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About this internship

Sigmoid has an open React.js Developer Intern position in Mumbai for motivated freshers and final-year students. You will join a supportive engineering team, take ownership of meaningful web features, and grow the practical skills employers actually look for. 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 Mumbai
  • A portfolio, personal website or web project you can show (a plus, not mandatory)

Perks & benefits

Pre-Placement Offer (PPO) opportunityFlexible working hoursInternship CertificateLetter of RecommendationMentorship from experienced engineers

Interview & selection process

3 rounds — typical selection flow for this role:

  1. 1Application screening & resume shortlisting by the talent team
  2. 2Discussion with the engineering hiring manager
  3. 3HR discussion — stipend, start date, expectations and offer

About Sigmoid

Sigmoid operates in the analytics & ai space and actively invests in early-career engineering talent across Mumbai. 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…
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