Castler

Next.js Developer Intern

InternshipIn OfficeKochi, Kerala4 months34K/mo1 openingImmediate / Rolling

About this internship

Join Castler in Kochi as a Next.js Developer Intern. This entry-level internship is designed for students and recent graduates who learn best by building, shipping and getting real feedback on modern web engineering work. About the role As a Next.js Developer Intern at Castler, your core focus…

Skills you'll use

Next.jsReactTypeScriptServer-side RenderingTailwind CSSREST / GraphQL APIsWeb PerformanceSEO FundamentalsGitVercel / Deployment

What you'll do

Work on building server-rendered React apps with strong SEO and performance alongside the core team
Apply Next.js, React, TypeScript, Server-side Rendering 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 Next.js, React, TypeScript (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 Kochi, Kerala

Perks & benefits

Flexible working hoursNetworking with senior professionalsInternship CertificateLetter of RecommendationMentorship from a named mentor

Interview & selection process

2 rounds — typical selection flow for this role:

1Application screening & resume shortlisting by the talent team
2Technical interview on fundamentals and your projects

About Castler

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