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Flintobox Tech logo — Flintobox Tech Full Stack Developer Intern at Flintobox Tech
Flintobox Tech

Full Stack Developer Intern

InternshipHybridMumbai, Maharashtra6 months18K/mo4 openingsImmediate / Rolling
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About this internship

Flintobox Tech has an open Full Stack Developer Intern role in Mumbai for driven freshers and final-year students. You will work on real, production-facing projects and learn the exact skills and workflows top tech teams look for. As a Full Stack Developer Intern, you will work closely with senior…

Skills you'll use

ReactNode.jsJavaScriptMongoDBExpressREST APIs

What you'll do

  • Build, test and ship real features using React, Node.js, JavaScript, MongoDB
  • Write clean, maintainable code and participate in code reviews
  • Work on building end-to-end web features across frontend and backend
  • Debug issues and improve performance and reliability
  • Collaborate with engineers, designers and product on live projects

Who can apply

  • Pursuing or recently completed B.E./B.Tech/BCA/MCA/B.Sc (CS/IT) or a related discipline — 2026 freshers & final-year students welcome
  • Working knowledge of React, Node.js, JavaScript (or a strong willingness to learn them)
  • Solid programming fundamentals and problem-solving ability
  • Eagerness to learn, take feedback and collaborate in a team
  • Based in or willing to work from Mumbai

Perks & benefits

Letter of RecommendationMentorship from senior engineersReal-world project experienceHands-on with a modern tech stackPre-Placement Offer (PPO) opportunity

Interview & selection process

3 rounds — typical selection flow for this role:

  1. 1Application screening & resume shortlisting by the talent team
  2. 2Technical interview — DSA, coding and CS fundamentals
  3. 3HR discussion — stipend, start date, expectations and offer

About Flintobox Tech

Flintobox Tech is a edtech company with a strong engineering culture and a growing presence in Mumbai. The team believes the best way to grow is by building, which is why interns here get real ownership of code and projects from day one rather than being kept on the sidelines. Interns collaborate…
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