Senior Full‑Stack .NET Developer (Onsite – Riyadh)

About the role

We are seeking a Senior Full‑Stack .NET Developer to lead feature development and enhancements across two enterprise systems. The role requires simultaneous work on a modern .NET Core/Angular stack and a legacy ASP.NET Web Forms application, ensuring both remain fully operational.

Key responsibilities

• Develop and deliver new features for both the new and legacy systems within structured development waves and sprint cycles.
• Maintain and support the ASP.NET Web Forms correspondence system without any degradation.
• Build and extend Angular components, screens, and workflows for both applications.
• Implement Entity Framework Core migration, converting existing stored procedures according to the Technical Lead’s strategy.
• Integrate new functionality with the client’s Identity Server, handling SSO, MFA, RBAC, and audit‑trail logging.
• Develop document and transaction watermarking features as per tender requirements.
• Participate fully in Agile ceremonies: task estimation, daily stand‑ups, demos, and retrospectives.
• Write unit and integration tests for all new and modified code.
• Produce and update technical and functional documentation in Arabic where required.

Required profile

• Fluent Arabic speaker.
• Bachelor’s degree in Computer Science, Software Engineering, or a related field.
• 5‑8 years of professional full‑stack development experience.
• Experience with enterprise‑grade web applications, preferably in government or regulated sectors.
• Comfortable working with both legacy codebases and modern frameworks simultaneously.

Required skills

• .NET Core (REST API development)
• ASP.NET Web Forms
• Angular (latest LTS)
• SQL Server T‑SQL and stored procedures
• Oracle PL/SQL basics
• Entity Framework Core (code‑first migrations, LINQ)
• RESTful API design and versioning
• Identity Server integration (OpenID Connect, OAuth 2.0)
• RBAC implementation at API level
• Audit‑trail and structured logging
• Document watermarking (server‑side PDF/DOC handling)
• Unit testing and integration testing