Senior .Net Developer

Apex Systems; México; On-site; MXN 700,000 - 1,100,000; Full time

Job summary

Everforth Apex Systems Mexico is seeking a Senior .NET Developer with strong full-stack experience across C#, .NET, ASP.NET Core Web API, Blazor, and SQL Server. The role focuses on building modern web apps using Blazor Web App, Blazor SSR, Razor Components, and ASP.NET Core APIs.

You'll work in an established engineering environment, applying Clean Architecture, layered design, and SOLID principles, contributing to implementation, testing, source control, and overall application quality.

Qualifications

• Bachelor's degree or equivalent professional experience.
• 5+ years of professional software development.
• Strong hands-on experience with C# and modern .NET.
• Experience with Blazor Web App, Blazor SSR, and Razor Components.
• Solid experience with Microsoft SQL Server.
• Experience with Git and Azure DevOps.
• Unit/integration testing with xUnit or NUnit.

Responsibilities

• Design, develop, and maintain applications with C#, .NET 8/10, and ASP.NET Core Web API.
• Build UIs using Blazor Web App, Blazor SSR, and Razor Components.
• Develop data access with EF Core and SQL Server.
• Create maintainable APIs following architecture and SOLID.
• Write clean, testable, and maintainable code.
• Participate in code reviews and quality practices.
• Support automated build and deployment processes.

Skills

C#

.NET

ASP.NET Core

Blazor

EF Core

SQL Server

Git

Azure DevOps

xUnit

NUnit

Education

Bachelor's degree or equivalent

Tools

Azure Pipelines

MudBlazor

Radzen Blazor

SonarQube

Job description

Everforth Apex Systems Mexico is looking for a Senior .NET Developer with strong full-stack experience across C#, .NET, ASP.NET Core Web API, Blazor, and Microsoft SQL Server.

This position will focus on developing and maintaining modern web applications using Blazor Web App, Blazor SSR, Razor Components, and ASP.NET Core APIs, while following Clean Architecture, layered design, and SOLID principles. The developer will work within an established engineering environment and contribute across implementation, testing, source control, and application quality.

The requested technology combination is internally consistent: ASP.NET Core supports building web applications and services with .NET and C#, including Blazor-based web applications and REST APIs. [asp.net]

Key Responsibilities

Application Development

• Design, develop, and maintain applications using C#, .NET 8/10, and ASP.NET Core Web API.
• Build modern user interfaces using Blazor Web App, Blazor SSR, and Razor Components.
• Develop data access functionality using Entity Framework Core and Microsoft SQL Server.
• Create maintainable APIs and application components following established development standards.
• Apply Clean Architecture, Layered Architecture, and SOLID principles to application design.
• Produce clean, reusable, testable, and maintainable code.
• Participate in code reviews and contribute to engineering quality standards.
• Help identify and address technical issues throughout the development lifecycle.

Testing & Delivery

• Develop unit and integration tests using xUnit and/or NUnit.
• Use Git and Azure DevOps for version control and team development workflows.
• Contribute to automated build and deployment processes where applicable.
• Support reliable delivery through effective testing and engineering practices.

Required Experience & Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field, or equivalent professional experience.
• 5+ years of professional software development experience, with strong recent experience in the Microsoft .NET ecosystem.
• Strong hands-on development experience with C# and modern .NET (.NET 8 and/or .NET 10).
• Hands-on experience with Entity Framework Core.
• Strong experience developing applications with Blazor, specifically Blazor Web App, Blazor SSR, and Razor Components.
• Solid experience with Microsoft SQL Server.
• Practical understanding of Clean Architecture, Layered Architecture, and SOLID principles.
• Experience with Git and Azure DevOps.
• Hands-on experience with unit testing and integration testing, preferably using xUnit or NUnit.

Preferred Qualifications

• Experience maintaining or integrating with applications developed in Delphi.
• Experience using SonarQube for code-quality analysis.
• Experience with Azure DevOps Pipelines and automated build/deployment processes. Azure Pipelines supports automated build, testing, and deployment workflows, making this a relevant secondary signal rather than something that needs to outweigh the core development requirements. [azure.microsoft.com]
• Experience working with MudBlazor or Radzen Blazor UI component libraries.