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99 Yards Logo

Full Stack Developer Intern (Unpaid) – React Native, Android, TypeScript & Spring Boot

99 Yards

Salary not specified
Sep 2, 2025
New York, NY, US
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United States based startup seeking a Full Stack Developer Intern to contribute to real-world projects, design, build, and optimize mobile and web solutions that scale with the growing user base.

Requirements

  • Familiarity with React Native for cross-platform mobile development.
  • Understanding of Android development principles.
  • Strong foundation in TypeScript/JavaScript.
  • Basic knowledge of Spring Boot (Java) for backend development.
  • Understanding of RESTful APIs and database operations.
  • Experience with version control systems (Git/GitHub).

Responsibilities

  • Design and develop scalable features for mobile (React Native) and web (TypeScript) applications.
  • Support Android app development by testing, debugging, and optimizing for performance and usability.
  • Build and maintain backend services using Spring Boot (Java), ensuring reliable APIs and smooth integrations.
  • Implement database interactions and API integrations to deliver seamless functionality across the stack.
  • Contribute to code quality through code reviews, sprint planning, and technical discussions.
  • Troubleshoot and debug applications to improve speed, efficiency, and reliability.
  • Document code and processes to support team knowledge-sharing and maintain project clarity.

Other

  • Currently pursuing or recently completed a degree in Computer Science, Software Engineering, or a related field.
  • Prior coursework, personal projects, or internships in full-stack or mobile development are a plus.
  • Strong problem-solving and analytical skills.
  • Clear and effective communication skills, both written and verbal.
  • Ability to work independently and collaboratively in a team environment.