Castler

SDET & Test Automation Intern

InternshipHybridVaranasi, Uttar Pradesh3 months15K/mo6 openingsImmediate / Rolling

About this internship

Castler is hiring a SDET & Test Automation Intern in Varanasi — a hands-on, mentor-led internship built for students and 2026 freshers who want real exposure to test automation and quality engineering rather than a certificate-only programme. About the role As a SDET & Test Automation Intern at…

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Skills you'll use

Selenium WebDriverJava or PythonTestNG / PyTestAPI Testing (REST Assured)Playwright / CypressCI Pipelines (Jenkins)Test Case DesignGitBug Reporting (Jira)SQL Basics

What you'll do

Work on writing automated tests that catch regressions before a release ever reaches a customer alongside the core team
Apply Selenium WebDriver, Java or Python, TestNG / PyTest, API Testing (REST Assured) 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), BCA/MCA or B.Sc (Computer Science / IT)
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 Selenium WebDriver, Java or Python, TestNG / PyTest (or a genuine willingness to learn them)
Exposure to API Testing (REST Assured), Playwright / Cypress, CI Pipelines (Jenkins) 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 Varanasi, Uttar Pradesh or willing to work from there for the internship period

Perks & benefits

Exposure to professional tools and workflowsPre-Placement Offer (PPO) opportunityFlexible working hoursNetworking with senior professionalsInternship CertificateBroad ownership and direct exposure to founders and senior decision-makers

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 Castler

Castler operates in the escrow banking sector and has an active presence in Varanasi. 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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