CoreStack

GraphQL Developer Intern

InternshipIn OfficePune, Maharashtra4 months25K/mo12 openingsImmediate / Rolling

About this internship

CoreStack has an open GraphQL Developer Intern position in Pune for motivated freshers and final-year students. You will work on live GraphQL API development projects and finish with something you can genuinely talk about in interviews. About the role As a GraphQL Developer Intern at CoreStack…

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Skills you'll use

GraphQLApollo ServerSchema DesignResolversNode.jsREST vs GraphQLQuery OptimisationAuthenticationTypeScriptGit

What you'll do

Work on designing a schema clients can query precisely, without handing them a way to melt the database alongside the core team
Apply GraphQL, Apollo Server, Schema Design, Resolvers to live, production-facing problems
Document your work clearly for reviewers and stakeholders
Participate in reviews and act on the feedback you receive
Collaborate across engineering, product, design or business as required
Follow the team's quality, testing and documentation standards

Who can apply

Pursuing or recently completed B.E./B.Tech (CSE/IT/ECE), BCA/MCA or B.Sc/M.Sc (Computer Science / IT)
Graduating batch 2026 or 2027 — final-year students and recent graduates welcome
60% / 6.0 CGPA and above preferred; strong project work is considered alongside academics
Working knowledge of GraphQL, Apollo Server, Schema Design (or a genuine willingness to learn them)
Exposure to Resolvers, Node.js, REST vs GraphQL is an advantage
Clear written and verbal communication in English, and care with detail in your work
No prior work experience required — this is a fresher-friendly internship
Based in Pune, Maharashtra or willing to work from there for the internship period

Perks & benefits

Networking with senior professionalsInternship CertificateLetter of RecommendationMentorship from a named mentorLive project experienceDirect access to the team that owns the data you work on

Interview & selection process

3 rounds — typical selection flow for this role:

1Application screening & resume shortlisting by the talent team
2Online aptitude / domain assessment
3HR discussion — stipend, start date, expectations and offer

About CoreStack

CoreStack operates in the software (saas) sector and has an active presence in Pune. Interns here are put on real work from the start, because the team's view is that the fastest way to learn a craft is to practise it under people who already do it well — not to watch it from a distance. The work…

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