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FlexSalary

Experimentation & A/B Testing Intern

InternshipIn OfficeKolkata, West Bengal4 months29K/mo4 openingsImmediate / Rolling
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About this internship

Join FlexSalary in Kolkata as an Experimentation & A/B Testing Intern. This entry-level internship is designed for students and recent graduates who learn best by building, shipping and getting real feedback on experimentation and causal inference work. About the role As an Experimentation & A/B…

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Skills you'll use

A/B TestingCausal InferenceStatistical Power & Sample SizePythonSQLHypothesis TestingExperiment PlatformsMetric DesignConfidence IntervalsResult Communication

What you'll do

  • Work on designing tests that actually prove causation, and calling them honestly alongside the core team
  • Apply A/B Testing, Causal Inference, Statistical Power & Sample Size, Python 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, B.Sc/M.Sc (Statistics / Economics) or MBA (Analytics)
  • 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 A/B Testing, Causal Inference, Statistical Power & Sample Size (or a genuine willingness to learn them)
  • Exposure to Python, SQL, Hypothesis Testing 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

2 rounds — typical selection flow for this role:

  1. 1Application screening & resume shortlisting by the talent team
  2. 2Discussion with the hiring manager on the role and your fit

About FlexSalary

FlexSalary operates in the consumer lending 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 distance. The…
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