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Mastercard

FastAPI Developer Intern

InternshipIn OfficeMumbai, Maharashtra2 months19K/mo9 openingsImmediate / Rolling
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About this internship

Start your career in modern async Python APIs with Mastercard as a FastAPI Developer Intern in Mumbai. 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 a FastAPI Developer Intern at Mastercard, your core focus…

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Skills you'll use

PythonFastAPIPydanticAsync / AwaitPostgreSQLOpenAPI & SwaggerREST API DesignpytestDockerGit & GitHub

What you'll do

  • Work on building typed, async APIs that document themselves alongside the core team
  • Apply Python, FastAPI, Pydantic, Async / Await 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 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, FastAPI, Pydantic (or a genuine willingness to learn them)
  • Exposure to Async / Await, PostgreSQL, OpenAPI & Swagger 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 Mumbai, Maharashtra or willing to work from there for the internship period

Perks & benefits

Pre-Placement Offer (PPO) opportunityFlexible working hoursNetworking with senior professionalsInternship CertificateLetter of Recommendation

Interview & selection process

3 rounds — typical selection flow for this role:

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

About Mastercard

Mastercard operates in the payments technology sector and has an active presence in Mumbai. 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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