Backend Engineer (.NET / API Layer)

We are seeking a Backend Engineer (.NET / API Layer) with at least 4 years of experience and knowledge of Italian and English. **Key Responsibilities** - Design, develop, and maintain RESTful APIs using ASP.NET Core - Implement business logic for production orders, setpoint configurations, and laboratory sample management - Build and optimize data access layers with Entity Framework Core - Develop custom middleware and implement layered/clean architecture patterns - Integrate OAuth2/OIDC authentication with Identity Providers - Ensure API versioning, error handling, and best practices for endpoint design - Collaborate with frontend and edge teams to deliver seamless integrations **Required Skills & Experience** **Languages & Frameworks** - C#: Strong proficiency in modern C# development - ASP.NET Core: Hands-on experience building production-grade web APIs - RESTful API development: Deep understanding of REST principles and best practices **Architecture & Design** - Clean Architecture / Layered Architecture: Practical experience implementing separation of concerns - Custom middleware: Building reusable components for cross-cutting concerns - Experience designing maintainable, testable, and scalable backend systems **Data Access & ORM** - Entity Framework Core: Advanced knowledge of EF Core - ORM design: Configuring entities, relationships, and migrations - Relational mapping: Database schema design and optimization **Authentication & Security** - OAuth2 / OpenID Connect (OIDC): Integration with Identity Providers - Token-based authentication: JWT validation and secure API access - Understanding of authorization patterns and security best practices **API Design & Management** - API versioning: Implementing and maintaining multiple API versions - REST endpoint design: Creating intuitive, consistent, and well-documented APIs - Error handling: Proper use of HTTP status codes (4xx / 5xx) and structured error responses **Nice to Have** - Experience with PostgreSQL or other relational databases - Knowledge of microservices architecture - Familiarity with Docker and containerization - Experience with CI/CD pipelines and automated testing - Background in industrial or manufacturing domains - Experience with Azure cloud services - Knowledge of RabbitMQ or other message brokers **How to Apply** Interested candidates should send their CV to:  **hr@servicefactory.al** - *Please note that only shortlisted candidates will be contacted for interviews.* Burimi: https://al.linkedin.com/jobs/view/backend-engineer-net-api-layer-at-service-factory-solutions-4390025732

Niveli: mid level