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# Sr Applications Developer

- **Company:** Sonepar USA
- **Location:** Broomfield, CO, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** ASP.NET, HTML, JavaScript (Programming Language), .NET Framework, Application Programming Interfaces (APIs), Applications Architecture, ASP.NET MVC Framework, Browser Compatibility, Business Software, C Sharp (Programming Language), Cascading Style Sheets (CSS), Data Security, Relational Databases, Software Design Patterns, Web Development, Design of User Interfaces, Human-Computer Interaction, JSON, JQuery, Microsoft Visual Studio, Microsoft SQL Server, Model View Controller (MVC), Object-Oriented Software Development, Responsive Web Design, Software Engineering, Software Systems, Systems Integration, TypeScript, Web Applications, Extensible Markup Language (XML), Application Enhancement Tool, Information Technology, Restful APIs, Web Api
- **Published:** August 14, 2026
- **Apply:** https://jobs.localjobnetwork.com/apply/add/88025209/1

## About the Role

Qualified candidates must:

 * Hold a Bachelor's degree in Computer Science, Information Technology, or a related field.
 * Possess a minimum of three-five (3-5) years of experience as a Full-Stack Application Developer within a large and complex organization.
 * Demonstrate experience designing, developing, and supporting:
 + .NET applications utilizing ASP.NET and MVC frameworks
 + Application Programming Interfaces (APIs)
 + Modern, responsive web user interfaces
 + Highly scalable web-based applications and components
 + System integrations utilizing XML, JSON, and related technologies
 + Productivity and business applications leveraging web and mobile technologies

Technical Skills & Experience

Candidates should demonstrate strong proficiency in the following areas:

 * Microsoft .NET Framework and ASP.NET MVC
 * C# and Object-Oriented Design principles
 * Visual Studio IDE
 * Microsoft SQL Server and relational database technologies
 * RESTful services and Web API development
 * End-to-end web application development, from user interface through data access layers
 * Rich web application UI development
 * JavaScript, TypeScript, jQuery, JSON, HTML, and CSS
 * Cross-browser application development and support
 * Application architecture, design patterns, and scalable solution development

## Description

* Participate in both front-end and back-end application development.
 * Design, develop, and maintain end-to-end software solutions.
 * Build scalable, secure, and high-performing web applications.
 * Troubleshoot, diagnose, and resolve application issues to ensure optimal performance and reliability.
 * Collaborate with business partners, product teams, and fellow developers to deliver innovative technology solutions.
 * Contribute to application enhancements, integrations, and continuous improvement initiatives.


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