Mastercard

Quantum Software Engineer Intern

InternshipWork from HomeKolkata, West Bengal2 months43K/mo1 openingImmediate / Rolling

About this internship

Start your career in quantum computing with Mastercard as a Quantum Software Engineer Intern in Kolkata. 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 Quantum Software Engineer Intern at Mastercard, your…

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Skills you'll use

QiskitCirqQuantum Algorithm DesignLinear AlgebraPythonQuantum Circuit SimulationError Mitigation TechniquesComplexity AnalysisScientific Computing (NumPy)Technical Documentation

What you'll do

Work on implementing and benchmarking quantum algorithms on simulators and hardware alongside the core team
Apply Qiskit, Cirq, Quantum Algorithm Design, Linear Algebra 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/ECE), B.Sc/M.Sc (Physics / Mathematics / CS) or M.Tech — 2026 freshers & final-year students welcome
Working knowledge of Qiskit, Cirq, Quantum Algorithm Design (or a genuine willingness to learn them)
Strong fundamentals in your discipline and clear problem-solving ability
Care with detail and the discipline to document your work
Clear written and verbal communication in English
Based in or willing to work from Kolkata, West Bengal

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:

1Application screening & resume shortlisting by the talent team
2Team-fit / behavioural interview with the team
3HR discussion — stipend, start date, expectations and offer

About Mastercard

Mastercard operates in the payments technology 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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