Jar

Python Developer Intern (FinTech)

InternshipIn OfficeKolkata, West Bengal6 months16K/mo2 openingsImmediate / Rolling

About this internship

Join Jar in Kolkata as a Python Developer Intern (FinTech). This entry-level internship is designed for students and recent graduates who learn best by building, shipping and getting real feedback on Python engineering in financial services work. About the role As a Python Developer Intern…

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Skills you'll use

PythonREST APIsPostgreSQLDecimal & Money HandlingPayment Gateway IntegrationIdempotency & ReconciliationSecurity BasicsTestingAudit LoggingGit & GitHub

What you'll do

Work on building payment and ledger code where a rounding error is a real incident alongside the core team
Apply Python, REST APIs, PostgreSQL, Decimal & Money Handling 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), MCA or M.Sc (Computer Science)
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 Python, REST APIs, PostgreSQL (or a genuine willingness to learn them)
Exposure to Decimal & Money Handling, Payment Gateway Integration, Idempotency & Reconciliation 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

Mentorship from a named mentorLive project experienceExposure to professional tools and workflowsPre-Placement Offer (PPO) opportunityFlexible working hours

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 Jar

Jar operates in the fintech & digital savings 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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