Senior Back-End Developer

Orascom Investment Holding

The Senior Back-End Developer is responsible for designing, building, and optimizing scalable back-end systems that power eCommerce solutions. Focused on developing high-performance, secure, and reliable APIs, services, databases, and integrations using .NET Core and NestJS, while applying best practices for microservices and cloud-based architectures

Key Responsibilities:

Core Development

• Design, develop, and maintain scalable back-end applications using .NET Core (C#, Entity Framework) and NestJS.
• Develop and manage RESTful APIs and contribute to GraphQL services.
• Architect, optimize, and maintain relational (SQL Server, PostgreSQL) and NoSQL databases.
• Ensure system security (authentication, authorization, encryption, data protection).
• Implement caching, load balancing, and performance optimizations for high-traffic environments.

Collaboration & Delivery

• Work closely with front-end developers to provide seamless integration.
• Collaborate with product managers, designers, and DevOps engineers.
• Align with Tech Leads and architects on long-term technical direction.
• Participate in agile development cycles, delivering features reliably and on time.

Quality & Continuous Improvement

• Write clean, maintainable, and testable back-end code.
• Implement and maintain automated testing (unit, integration, API tests).
• Participate in peer code reviews to maintain best practices and consistency.
• Suggest and implement improvements in development processes, DevOps, and CI/CD pipelines.
• Stay updated on .NET Core, NestJS, and cloud technologies.