Programador/a Senior .NET

About the role

Altia is seeking a Senior .NET Developer to join its experienced team and work on high‑impact public‑sector projects. The position offers a stable contract, flexible working hours and the possibility to work remotely while contributing to digital solutions that create real value.

Key responsibilities

• Develop and maintain applications using .NET Core and C#.
• Design, implement and document RESTful Web APIs (OpenAPI, nSwag).
• Create and publish NuGet packages and manage ClickOnce deployments.
• Handle data access with Entity Framework Core and design databases using SQL Developer Data Modeler.
• Implement logging (Serilog, Seq) and caching (Redis) strategies.
• Ensure application security with ASP.NET Core, OAuth2 and related best practices.
• Produce reports using JasperReports and Microsoft Report Viewer.
• Maintain code quality through SonarQube analysis and write unit tests with xUnit.
• Set up and monitor CI/CD pipelines in GitLab and perform API testing with Postman.

Required profile

• Minimum qualification: CFGS.
• At least 4 years of professional experience developing .NET Core/C# applications.
• Proven experience with the listed technologies and tools.
• Ability to work independently in a remote or hybrid environment.
• Strong analytical mindset and commitment to continuous learning.

Required skills

• .NET Core
• C#
• Web API (REST)
• OpenAPI / nSwag
• Windows Forms (WinForms)
• Entity Framework Core (EF Core)
• NuGet package development
• ClickOnce deployment
• Serilog & Seq logging
• Redis caching
• ASP.NET Core security
• OAuth2
• JasperReports
• Microsoft Report Viewer
• SonarQube
• GitLab CI/CD
• xUnit testing
• Postman
• SQL, XML, JSON
• GitLab version control
• SQL Developer Data Modeler

What we offer

• Remote work possibility.
• Stable position with growth prospects aligned with your professional interests.
• Flexible schedule.
• Continuous training program to advance your career.
• Competitive and flexible compensation.
• Open, collaborative culture working with large public‑sector clients.