Ultimate Solutions is seeking a highly skilled Senior .NET Core Developer to join our growing team in Alexandria, Egypt. The ideal candidate will have extensive experience in .NET Core, PostgreSQL, and modern web standards. This is a full-time on-site position based at our Alexandria branch.

You will play a key role in designing, developing, and optimizing high-performance RESTful APIs, contributing to system architecture, and leading performance improvements and best coding practices across the team.

Responsibilities:
* Design, develop, and maintain scalable and secure RESTful services using C# and .NET Core.

* Architect and manage multiple environments: Development, QA, Demo, and Production.

* Collaborate with cross-functional teams to define optimal API contracts and system integration strategies.

* Conduct code reviews, enforce best practices, and mentor junior developers.

* Optimize database performance using Entity Framework Core, LINQ, and PostgreSQL.

* Implement and maintain CI/CD pipelines and support containerized deployments with Docker and Kubernetes.

* Participate in system architecture design and decision-making processes.

* Adapt to evolving business requirements while maintaining code quality and performance.

* (Optional but preferred) Contribute to Full-stack development using modern frontend frameworks.