Software Developer – Middle Layer

Titan Professional Resources is seeking a Middle Layer Software Developer to join one of our clients here in OKC! This role focuses on API development, business logic, and data access using C# and .NET 6+, with an emphasis on REST APIs, Dapper, and SQL Server integration.

Responsibilities

• Design and develop middle-layer API code to support business requirements and application functionality
• Build and consume REST APIs using C# and .NET 6+
• Implement business logic and data access using Dapper and SQL Server
• Develop paginated API endpoints with appropriate error handling and logging
• Schedule and maintain recurring and background jobs using Hangfire
• Work with JSON serialization and LINQ
• Write and maintain unit tests to ensure code quality and reliability
• Research and understand existing and complex code, systems, processes, and workflows
• Troubleshoot and resolve complex technical issues
• Participate in technical code reviews and address logic, performance, and coding standard concerns
• Work with management and project coordinators to prioritize development work
• Estimate development efforts and track progress through an online ticketing system
• Collaborate with other IT teams and service providers
• Mentor and provide technical guidance to other developers
• Communicate technical issues and solutions effectively with both technical and non-technical teams

Qualifications

• Strong middle-layer/API development experience
• Strong experience with C# and .NET 6+
• Extensive REST API development and integration experience
• Experience with Dapper for SQL Server data access
• Strong knowledge of LINQ and JSON
• Experience with Hangfire for recurring and background jobs
• Experience with Git and Azure DevOps, including source control, pull requests, branching, and deployment pipelines
• Experience with Swagger/OpenAPI
• Experience with API testing tools such as Postman, Bruno, or Insomnia
• Experience working with Visual Studio or Visual Studio Code
• Strong problem-solving and analytical skills
• Ability to research and understand complex existing code
• Ability to work independently and collaborate effectively with a team
• Senior-level experience with the ability to troubleshoot complex issues and mentor other developers