Castler

Mobile App Developer Intern

InternshipHybridGurgaon, Haryana2 months18K/mo1 openingImmediate / Rolling

About this internship

Castler is hiring a Mobile App Developer Intern in Gurgaon — a hands-on, mentor-led internship built for students and 2026 freshers who want real exposure to mobile application development rather than a certificate-only programme. About the role As a Mobile App Developer Intern at Castler, your…

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Skills you'll use

FlutterReact NativeSwift (iOS)Kotlin (Android)Mobile SecurityREST API IntegrationState ManagementOffline & Caching StrategyApp Store / Play Store ReleaseCrash & Performance Monitoring

What you'll do

Work on building and releasing mobile features to real app-store users alongside the core team
Apply Flutter, React Native, Swift (iOS), Kotlin (Android) 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) — 2026 freshers & final-year students welcome
Working knowledge of Flutter, React Native, Swift (iOS) (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 Gurgaon, Haryana

Perks & benefits

Exposure to professional tools and workflowsPre-Placement Offer (PPO) opportunityFlexible working hoursNetworking with senior professionalsInternship Certificate

Interview & selection process

2 rounds — typical selection flow for this role:

1Application screening & resume shortlisting by the talent team
2Team-fit / behavioural interview with the team

About Castler

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