Serum Institute of India

Advanced SQL Developer Intern

InternshipWork from HomePatna, Bihar2 months18K/mo13 openingsImmediate / Rolling

About this internship

Start your career in advanced SQL development with Serum Institute of India as an Advanced SQL Developer Intern in Patna. You will sit with a working team, use the same tools and systems they do, and own a defined piece of work from day one. About the role As an Advanced SQL Developer Intern at…

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Skills you'll use

Advanced SQLWindow FunctionsCTEsJoins & Set OperationsIndexingQuery OptimisationPostgreSQL or MySQLData ModellingAnalytical ThinkingDocumentation

What you'll do

Work on writing the window functions, CTEs and joins that answer questions nobody could answer before — and making them fast alongside the core team
Apply Advanced SQL, Window Functions, CTEs, Joins & Set Operations 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 (Computer Science / Statistics) or B.Com with strong SQL
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 Advanced SQL, Window Functions, CTEs (or a genuine willingness to learn them)
Exposure to Joins & Set Operations, Indexing, Query Optimisation 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 Patna, Bihar or willing to work from there for the internship period

Perks & benefits

Letter of RecommendationMentorship from a named mentorLive project experienceExposure to professional tools and workflowsPre-Placement Offer (PPO) opportunityStructured onboarding and a formal mentor at a large, established employer

Interview & selection process

4 rounds — typical selection flow for this role:

1Application screening & resume shortlisting by the talent team
2Technical interview on fundamentals and your projects
3Practical assignment or case study with a short walkthrough
4HR discussion — stipend, start date, expectations and offer

About Serum Institute of India

Serum Institute of India operates in the vaccines & biologicals sector and has an active presence in Patna. 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…

Visit Serum Institute of India’s official website ↗

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