HFCL Limited

Data Modelling Intern

InternshipHybridKolkata, West Bengal3 months14K/mo7 openingsImmediate / Rolling

About this internship

Join HFCL Limited in Kolkata as a Data Modelling Intern. This entry-level internship is designed for students and recent graduates who learn best by building, shipping and getting real feedback on dimensional and logical data modelling work. About the role As a Data Modelling Intern at HFCL…

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Skills you'll use

Dimensional ModellingStar & Snowflake SchemaNormalisationSQLER DiagramsSlowly Changing DimensionsData WarehousingRequirements GatheringDocumentationData Governance

What you'll do

Work on designing the tables and grain that make later questions easy instead of impossible alongside the core team
Apply Dimensional Modelling, Star & Snowflake Schema, Normalisation, 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 (CSE/IT), BCA/MCA, B.Sc/M.Sc (Computer Science / Statistics) or MBA (Systems)
Graduating batch 2026, 2027 or 2028 — final-year students and recent graduates welcome
60% / 6.0 CGPA and above preferred; strong project work is considered alongside academics
Working knowledge of Dimensional Modelling, Star & Snowflake Schema, Normalisation (or a genuine willingness to learn them)
Exposure to SQL, ER Diagrams, Slowly Changing Dimensions 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

Flexible working hoursNetworking with senior professionalsInternship CertificateLetter of RecommendationMentorship from a named mentorStructured onboarding and a formal mentor at a large, established employer

Interview & selection process

2 rounds — typical selection flow for this role:

1Application screening & resume shortlisting by the talent team
2Team-fit / behavioural interview with the team

About HFCL Limited

HFCL Limited operates in the telecom & optical fibre 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…

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