Back End Developer

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Overview

We are seeking a Senior Back End Developer with a strong focus on backend systems to join a dynamic travel tech startup working on a new React Native application. In this contract role, the contractor will play a vital part in developing backend APIs and integrations, ensuring robust systems to support user interactions and bookings.

Responsibilities

  • Develop backend APIs using Node.js, Express.js, and TypeScript.
  • Implement user authentication and authorization, including JWT and refresh tokens.
  • Design and maintain MongoDB schemas and data models.
  • Integrate various services such as Firebase, Twilio, and payment gateways.
  • Document APIs clearly for the mobile development team.
  • Collaborate with frontend engineers to ensure seamless integration of backend systems.

Requirements

  • Proven experience with Node.js, Express.js, and TypeScript.
  • Strong knowledge of MongoDB and Mongoose for schema design.
  • Experience working on backend systems that support mobile applications.
  • Familiarity with JWT authentication and user profile management.
  • Understanding of integration with third-party services, particularly in travel or fintech domains.
  • Knowledge of AWS, Docker, and CI/CD pipelines is a plus.
SkillsReact, React Native, Node.js, TypeScript, AWS
LocationUnited Kingdom
TypeRemote
Rate
£55-£70/hour
SourceLinkedIn
RecruiterArrows
Posted02/07/26