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# Senior C# .NET Developer

- **Company:** Intersources Inc.
- **Location:** Atlanta, GA, United States
- **Experience:** Expert
- **Contract:** Contract
- **Skills:** ASP.NET, JavaScript (Programming Language), .NET Framework, Vbscript, Microsoft Windows, Application Programming Interfaces (APIs), Agile Methodology, Ajax (Programming Language), Amazon Web Services, Business Logic, Application Testing, ASP.NET MVC Framework, Microsoft Azure, Browser Compatibility, C Sharp (Programming Language), Software as a Service, Web Development, Middleware, Human-Computer Interaction, Integrated Development Environments, JQuery, Microsoft Visual Studio, Microsoft Software, Microsoft SQL Server, Team Foundation Server, Requirements Management, Software Deployment, SQL Server Reporting Services, SQL Server Integration Services, Systems Integration, Transact-SQL, Web Services, Enterprise Software Applications, Backend, Documentation System, AngularJS, Information Technology, Windows Services, Kendo Ui, Front End Software Development, Api Design, Restful APIs, Code Restructuring, Software Version Control, Web Api
- **Published:** September 4, 2026
- **Apply:** https://www2.jobdiva.com/portal/?a=62jdnw10t7d77ytz0lbaey9qxonk3b05a9tqw96rb7z6hlfo7xj79l9g6mp6aj2o&compid=0/jobs/28960891#/jobs/28960891

## About the Role

Experienced web and API applications developer needed to redesign websites and build APIs, including revising information architecture, navigation, and user interface in .NET 4.0 and above environments where development is performed using Visual Studio 2017+ and .NET 4.0+. Knowledge of how to develop for cross-browser compatibility is required. Knowledge of content management is required. The candidate must have the ability to work on the back end with limited help and create business logic modules if necessary. Must create and maintain basic technical requirements documentation, maintain developer's notes, and create technical product documentation. Must be a self-starter with the ability to manage multiple tasks, meet deadlines, and adapt to changing project requirements., * 7-10 years of experience in C#.NET, Visual Studio 2010+, JavaScript, AJAX, SQL Server 2012+ (TSQL, SSIS, SSRS, etc.), Classic ASP, VBScript, ASP.NET 4.0+, ASP.NET MVC, JQuery, TFS 2015, developing multi-tier web-based applications

 * 4+ years of hands-on experience in building RESTful APIs, Web APIs, windows, and traditional web services and integrating with third-party services
 * Experience in consuming and creating services integrating with SAAS solutions or other 3^ rd party applications
 * Good understanding of API design principles and documentation tools
 * Problem-solving skills, keen eye for detail and ability to work in a collaborative, agile environment
 * Working with management, business analysts, and users to develop complex interfaces that accomplish project objectives
 * Experience performing complete application testing and related documentation
 * Participating in all phases of the project lifecycle, from initial design to production deployment
 * Ability to work in a fast-paced, evolving environment
 * Excellent written and oral communication skills
 * Bachelor of Science in Computer Science, Mathematics, or a related field or equivalent experience.

Additional Qualifications, as a plus:

 * MS Azure, AWS (Amazon Web Services).
 * Experience in the following is a plus: Angular, Agile Development Methodology, Kendo UI.
 * Experience in the government sector desired.
 * Project management skills a plus.

Skill Matrix:

Skill Required No. of Years Actual Years of Experience
Current experience developing and maintaining Rest APIs, Web APIs, windows services, and traditional web services. 5 Years
Current experience consuming and creating services integrating with SAAS solutions or other 3rd party applications 4 Years
Recent experience developing web applications using C#.Net 7 Years
Experience developing web applications using ASP.Net 4.0+ 5 Years
SQL Server Back-end 2012+ (TSQL, SSIS, SSRS, etc.) 5 Years
Resolving browser compatibility issues for all platforms/major browsers 5 Years
Performing complete application testing and related documentation MS Azure, AWS (Amazon Web Services) 5 Years
Angular, Agile Development Methodology, Kendo UI Nice to have
Experience in the government sector Nice to have
Project management skills Nice to have

## Description

Design and develop responsive and adaptive software across all platforms and devices, build robust applications and tools across the full Microsoft stack (back-end/middleware/front-end).
Work on existing software, including refactoring and redesigning legacy applications.
Analyze business requirements, document technical guidance, and promote continuous integrated development by working with other developers and IT analysts.
Collaborate with other developers, businesses, and key stakeholders.
Document the code base where necessary. Maintain source control periodically with updates.


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