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Backend Developer Intern

Exclusive opportunity

Remote

Backend Developer Intern

Cofynder

Backend Developer Intern

Skills

SQL QueriesFirebaseMongoDBMobile DevelopmentDockerNodeDjangoFlaskPythonJavaExpressSpring BootPostgreSQLMySQLGitHubFastAPI

2 months ago

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Important information


Contract type:

Internship

Location:

India

Work mode:

Remote

Published on:

19 August 2026

What they need


Backend Developer Intern — Unpaid

Duration: 3 MonthsType: InternshipStipend: Unpaid

Role Overview

We are looking for a motivated Backend Developer Intern to join our development team and help build and improve the backend infrastructure for our mobile application.

Responsibilities

  • Develop and maintain backend APIs and services.
  • Work with databases to store and manage application data.
  • Implement user authentication and authorization.
  • Build APIs for user profiles, posts, connections, messaging, and other app features.
  • Integrate frontend/mobile applications with backend APIs.
  • Debug issues and optimize backend performance.
  • Write clean, maintainable, and well-structured code.
  • Collaborate with mobile developers and UI/UX designers.
  • Participate in testing, debugging, and deployment.

Required Skills

  • Basic knowledge of backend development.
  • Proficiency in at least one backend language/framework:
  • Node.js / Express.js
  • Python / Django / Flask / FastAPI
  • Java / Spring Boot
  • Knowledge of REST APIs.
  • Understanding of SQL or NoSQL databases.
  • Basic knowledge of Git and GitHub.
  • Understanding of authentication and authorization.
  • Problem-solving and debugging skills.
  • Ability to work independently and collaborate with a team.

Good to Have

  • Experience building backend projects or APIs.
  • Knowledge of MongoDB, PostgreSQL, or MySQL.
  • Experience with Firebase or cloud services.
  • Basic knowledge of Docker.
  • Understanding of API security.
  • Knowledge of real-time communication such as WebSockets/Socket.IO.

Who Can Apply

  • Students, recent graduates, or self-taught developers.
  • Candidates with personal/college backend projects are encouraged to apply.
  • Candidates should be willing to learn and work on a real-world application.

Note: This is an unpaid 3-month internship. Candidates will get practical experience working on a real-world mobile application and backend system.

Benefits:

  • Flexible schedule
  • Work from home

Work Location: Remote

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