Senior C#/.NET Developer

Genixalab.com

About the job

C#/.NET Developer - Only US Citizen

We are seeking an experienced C#/.NET Developer to design, develop, and maintain reliable, scalable software applications. You will work primarily with the Microsoft .NET ecosystem, building backend services, APIs, database-driven applications, and integrations while collaborating with other engineers throughout the software development lifecycle.

Responsibilities

• Design, develop, and maintain applications using C#, .NET, and ASP.NET Core
• Build and maintain RESTful APIs, backend services, and microservices
• Develop clean, reusable, maintainable, and testable code
• Work with Entity Framework Core and relational databases such as SQL Server and PostgreSQL
• Design database schemas, queries, stored procedures, and data-access layers
• Integrate applications with internal systems and third-party APIs
• Implement asynchronous processing, background services, and messaging workflows
• Troubleshoot application, API, database, and production issues
• Write unit and integration tests and participate in code reviews
• Work with Docker, Git, and CI/CD pipelines
• Deploy and maintain applications in Azure, AWS, or other cloud environments
• Collaborate with product, QA, DevOps, and engineering teams on new features and improvements
• Contribute to technical design and architecture decisions

Requirements

• 5+ years of professional software development experience
• Strong experience with C# and .NET/.NET Core
• Strong knowledge of ASP.NET Core and Web API
• Experience with Entity Framework Core
• Strong SQL skills and experience with SQL Server and/or PostgreSQL
• Understanding of REST APIs, dependency injection, design patterns, and SOLID principles
• Experience with asynchronous programming and multithreading in .NET
• Familiarity with microservices and distributed application architectures
• Experience with Git, Docker, and CI/CD
• Experience with Azure or AWS is preferred
• Strong debugging and problem-solving skills
• Good written and verbal communication skills