Backend Developer | Concord Arabia |

Job Title: Backend Developer

Experience: 4 7 Years

Employment Type: Full-Time

We are seeking an experienced Backend Developer to design develop and maintain secure scalable backend systems and RESTful APIs. The ideal candidate will have strong hands-on experience with frameworks database design third-party integrations and modern backend engineering practices and will collaborate closely with frontend DevOps and product teams.

• Design develop and maintain RESTful APIs using frameworks such as Express Fastify or NestJS.

• Build scalable backend services following clean architecture and modular design principles.

• Develop middleware request validation and centralized error handling mechanisms.

• Implement authentication and authorization systems (JWT RBAC role-based access).

• Ensure backend security through input validation sanitization rate limiting and best practices.

• Develop background jobs and schedulers using tools like Bull Cron or similar.

• Manage file uploads storage and integrations with third-party services.

• Design and manage relational databases (PostgreSQL / MySQL) including schema design indexing and query optimization.

• Work with NoSQL databases such as MongoDB including aggregation pipelines and indexing strategies.

• Use ORMs / ODMs such as Sequelize TypeORM Prisma or Mongoose.

• Ensure data integrity consistency and transaction management across services.

• Implement API versioning and maintain backward compatibility.

• Integrate third-party services such as payment gateways SMS email KYC and analytics platforms.

• Design and consume webhooks and event-driven workflows.

• Implement caching strategies using Redis to improve performance and scalability.

• Use Git for version control and collaborate via GitHub or GitLab.

• Work with CI/CD pipelines (GitHub Actions GitLab CI) for automated builds and deployments.

• Build and run services using Docker (basic to intermediate level).

• Manage configurations across development UAT and production environments.

• Write unit and integration tests to ensure code quality and reliability.

• 4 7 years of hands-on experience in backend development.

• Strong understanding of REST API design principles.

• Solid knowledge of SQL and NoSQL databases.

• Experience with authentication authorization and backend security best practices.

• Familiarity with background jobs queues and schedulers.

• Understanding of scalable system design and performance optimization.

• Strong debugging problem-solving and communication skills.

• Experience with microservices architecture.

• Knowledge of message queues (RabbitMQ Kafka etc.).

• Exposure to cloud platforms such as AWS GCP or Azure.

• Experience with monitoring and logging tools.