CoreStack

Data Research Intern

InternshipWork from HomeKolkata, West Bengal3 months20K/mo15 openingsImmediate / Rolling

About this internship

CoreStack has an open Data Research Intern position in Kolkata for motivated freshers and final-year students. You will work on live data research projects and finish with something you can genuinely talk about in interviews. About the role As a Data Research Intern at CoreStack, your core focus…

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Skills you'll use

Data SourcingWeb ResearchExcelSQLData ValidationPython BasicsDocumentationStatistical ReasoningAttention to DetailReporting

What you'll do

Work on sourcing, verifying and structuring data that does not yet exist in a usable form alongside the core team
Apply Data Sourcing, Web Research, Excel, SQL 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 (any branch), BCA/MCA, B.Sc (Statistics/Mathematics), B.Com/BBA or MBA
Graduating batch 2025, 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 Data Sourcing, Web Research, Excel (or a genuine willingness to learn them)
Exposure to SQL, Data Validation, Python Basics 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 Kolkata, West Bengal 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

4 rounds — typical selection flow for this role:

1Application screening & resume shortlisting by the talent team
2Online aptitude / domain assessment
3Technical interview on fundamentals and your projects
4HR discussion — stipend, start date, expectations and offer

About CoreStack

CoreStack operates in the software (saas) sector and has an active presence in Kolkata. 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…

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