Senior .NET Developer

  • Entegee, Inc.
  • Dubuque, Iowa
  • Full Time
Senior .NET Developer needed to maintain existing applications, enhance web and Windows systems, and develop new application modules using Microsoft technologies. Job Requirements Bachelor's degree in Computer Science, Information Systems, or related field

8+ years of experience developing web applications using .NET, C#, and Microsoft SQL Server

EPC industry experience

Strong experience with ASP.NET, .NET Core, and MVC frameworks

Experience building and supporting Windows applications

Experience building and supporting web applications using Microsoft technologies

Proficiency with SQL, T-SQL, stored procedures, and database development

Experience with Entity Framework

Experience with web services

Front-end development experience with HTML, CSS, JavaScript, jQuery, Bootstrap, and Ajax

Strong understanding of object-oriented programming principles

Experience with Azure DevOps

Preferred Skills Experience maintaining and enhancing existing enterprise applications

Experience developing new modules for existing applications

Experience supporting full-time software development projects

Experience with Microsoft-based application architecture

Experience troubleshooting application and database issues

Job Responsibilities Maintain and enhance existing .NET applications

Develop new modules for existing applications

Build and support web applications using .NET, C#, ASP.NET, .NET Core, and MVC frameworks

Build and support Windows applications using Microsoft technologies

Develop and maintain SQL Server databases, stored procedures, and T-SQL scripts

Use Entity Framework for application data access and database integration

Develop and support web services

Build and maintain front-end application features using HTML, CSS, JavaScript, jQuery, Bootstrap, and Ajax

Apply object-oriented programming principles to application development

Use Azure DevOps for source control, work tracking, and development workflows

Pay Details: The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable: The California Fair Chance Act Los Angeles City Fair Chance Ordinance Los Angeles County Fair Chance Ordinance for Employers San Francisco Fair Chance Ordinance Massachusetts Candidates Only: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Job ID: 522140535
Originally Posted on: 5/22/2026

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