Castler

Cloud Security Intern

InternshipHybridBardhaman, West Bengal6 months30K/mo4 openingsImmediate / Rolling

About this internship

Join Castler in Bardhaman as a Cloud Security Intern. This entry-level internship is designed for students and recent graduates who learn best by building, shipping and getting real feedback on cloud security and zero-trust architecture work. About the role As a Cloud Security Intern at Castler…

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Skills you'll use

AWS GuardDutyZero Trust ArchitectureIdentity & Access Management (IAM)Cloud Security Posture Management (CSPM)Encryption & Key ManagementContainer SecurityCloud Networking & Security GroupsTerraformCompliance Benchmarks (CIS)Incident Detection in Cloud

What you'll do

Work on hardening cloud accounts, identities and workloads against real attack paths alongside the core team
Apply AWS GuardDuty, Zero Trust Architecture, Identity & Access Management (IAM), Cloud Security Posture Management (CSPM) 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 B.Sc (Cyber Security / CS) — 2026 freshers & final-year students welcome
Working knowledge of AWS GuardDuty, Zero Trust Architecture, Identity & Access Management (IAM) (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 Bardhaman, West Bengal

Perks & benefits

Mentorship from a named mentorLive project experienceExposure to professional tools and workflowsPre-Placement Offer (PPO) opportunityFlexible working hours

Interview & selection process

4 rounds — typical selection flow for this role:

1Application screening & resume shortlisting by the talent team
2Team-fit / behavioural interview with the team
3Online aptitude / domain assessment
4HR discussion — stipend, start date, expectations and offer

About Castler

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