Backend Developer Job Oman,Software Development

# Backend Developer Join Zarrar Innovations as a Freelance Backend Developer and work on project-based opportunities involving APIs, databases, authentication, and scalable backend solutions.

Remote Freelance Mid -Levelremote Apply Now## About This Role Zarrar Innovations is looking for skilled Freelance Backend Developers to join our remote project-based developer network.

This is not a permanent or full-time position. When a suitable project becomes available, developers whose skills and experience match the project requirements may be contacted and assigned to the project.

The selected developer will work on the assigned project, collaborate with our team, and complete the required backend development tasks according to the project scope and timeline.

We are looking for developers who are reliable, skilled, responsible, and available to work on projects when required.## Responsibilities
* Develop and maintain backend applications for assigned projects.
* Build secure, scalable, and well-structured REST APIs.
* Design and manage databases according to project requirements.
* Implement authentication, authorization, roles, and permissions.
* Integrate third-party APIs and external services.
* Optimize API performance and database queries.
* Debug and resolve backend issues and technical problems.
* Write clean, reusable, and maintainable code.
* Collaborate with frontend developers and other project team members.
* Use Git and Git Hub for version control and collaboration.
* Follow project-specific coding standards and development practices.
* Communicate project progress, technical challenges, and requirements with the team.
* Complete assigned tasks within agreed project timelines.## Requirements
* Proven experience in backend development.
* Strong knowledge of Node.js and server-side JavaScript or Type Script.
* Experience building and integrating RESTful APIs.
* Practical experience with MongoDB, PostgreSQL, or similar databases.
* Good understanding of authentication and authorization systems.
* Experience with Git and Git Hub.
* Ability to debug issues and find practical technical solutions.
* Understanding of backend security best practices.
* Ability to work independently on assigned project tasks.
* Strong communication and problem-solving skills.
* Ability to understand project requirements and deliver according to specifications.
* Availability to work on projects when assigned.
* Previous freelance or project-based development experience is a plus.## Required Skills Node.jsType Script Java Script RESTful API Development Express.jsNestJSMongoDBPostgreSQLDatabase Design Authentication and AuthorizationJWTAPI Integration Git and GitHubAPI Security Debugging and Error Handling Supabase Docker ## Benefits Remote and flexible project-based work.

Opportunity to work on real-world client and internal projects.

Project assignments based on your skills and experience.

Opportunity to work with modern backend technologies.

Exposure to different industries and software projects.

Flexible collaboration based on project requirements.

Opportunity to build long-term collaboration with Zarrar Innovations.

Work with a distributed team of developers and professionals.

Opportunity to grow your technical and professional experience.

Potential for additional project opportunities based on performance and project requirements.### Quick Details Department Engineering Location Remote Job Type Freelance Work Style remote Experience Mid -Level Posted Sep 16, 2026