Castler

Java Developer Intern

InternshipIn OfficeNavi Mumbai, Maharashtra2 months31K/mo4 openingsImmediate / Rolling

About this internship

Start your career in Java backend development with Castler as a Java Developer Intern in Navi Mumbai. You will sit with a working team, use the same tools and systems they do, and own a defined piece of work from day one. About the role As a Java Developer Intern at Castler, your core focus will…

Skills you'll use

Core JavaSpring BootHibernate / JPAREST APIsSQLMaven / GradleJUnitGitMultithreading BasicsDebugging

What you'll do

Work on building Spring Boot services and integrating them with databases alongside the core team
Apply Core Java, Spring Boot, Hibernate / JPA, REST APIs 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 — 2026 freshers & final-year students welcome
Working knowledge of Core Java, Spring Boot, Hibernate / JPA (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 Navi Mumbai, Maharashtra

Perks & benefits

Letter of RecommendationMentorship from a named mentorLive project experienceExposure to professional tools and workflowsPre-Placement Offer (PPO) opportunity

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 Navi Mumbai. 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…

Visit Castler’s official website ↗

Apply Now Find internships at Castler

Searching for “Castler internships” or “internship at Castler”? You’re in the right place.