Castler

Software Testing Intern (QA)

InternshipIn OfficeMadurai, Tamil Nadu3 months42K/mo2 openingsImmediate / Rolling

About this internship

Castler has an open Software Testing Intern (QA) position in Madurai for motivated freshers and final-year students. You will work on live quality assurance projects and finish with something you can genuinely talk about in interviews. About the role As a Software Testing Intern (QA) at Castler…

Skills you'll use

Manual TestingTest Case DesignFunctional TestingRegression TestingJIRABug ReportingSQLAPI Testing (Postman)SDLC & STLCAttention to Detail

What you'll do

Work on writing test cases and catching defects before customers do alongside the core team
Apply Manual Testing, Test Case Design, Functional Testing, Regression Testing 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/BCA/MCA/B.Sc (CS, IT) — 2026 freshers & final-year students welcome
Working knowledge of Manual Testing, Test Case Design, Functional Testing (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 Madurai, Tamil Nadu

Perks & benefits

Live project experienceExposure to professional tools and workflowsPre-Placement Offer (PPO) opportunityFlexible working hoursNetworking with senior professionals

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 Castler

Castler operates in the escrow banking sector and has an active presence in Madurai. 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 work…

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