IT - Software Engineer

National Powersport Auctions•NPA Portland South, OR

About The Position

Copart offers a wide range of opportunities across the (United States/Canada), and we’re looking for top talent to join Team Copart. This role involves building, maintaining, and enhancing full-stack applications using the Microsoft .NET stack. The engineer will support and modernize existing applications, design and develop APIs, work extensively with SQL Server, and troubleshoot production issues. A key aspect of the role is to own application features end-to-end, improve application performance and reliability, and collaborate with other engineers. The position also involves establishing development best practices and utilizing AI-assisted development tools appropriately. The company has a long history of industry leadership and global growth.

Requirements

3+ years of professional full-stack development experience with the Microsoft .NET stack.
Strong production experience with .NET Framework, ASP.NET, C#, VB.NET, WebForms, MVC, and .NET-based APIs.
Experience building, maintaining, and enhancing ASP.NET UI applications.
High proficiency with SQL Server, including complex queries, stored procedures, database design, and performance optimization.
Experience building and consuming REST APIs.
Strong understanding of application architecture across UI, business logic, API, and database layers.
Ability to work with both legacy codebases and modern application patterns.
Working knowledge of front-end technologies such as JavaScript, HTML, CSS, and ASP.NET UI patterns.
Strong debugging, troubleshooting, and problem-solving skills across UI, application, API, and database layers.
Ability to work independently and take ownership of application features, enhancements, and production issues.
Practical experience using AI tools such as ChatGPT, GitHub Copilot, Cursor, Claude, or similar tools as part of a professional development workflow, with the ability to review, validate, and refine AI-generated suggestions.
Should provide examples of shipped projects, production systems, or relevant full-stack .NET application work.

Nice To Haves

Experience with React or other modern JavaScript frameworks.
Experience with .NET Core / ASP.NET Core.
Experience with Entity Framework, ADO.NET, LINQ, or similar data access patterns.
Experience with authentication, authorization, and application security.
Familiarity with Agile/Scrum team environments.

Responsibilities

Build, maintain, and enhance full-stack applications using .NET Framework, ASP.NET, C#, VB.NET, WebForms, MVC, APIs, and SQL Server.
Support and modernize ASP.NET UI applications, including WebForms and MVC-based systems.
Design, develop, and support REST APIs and application services.
Work extensively with SQL Server, including writing queries, stored procedures, views, functions, and performance-tuning database interactions.
Troubleshoot production issues across UI, application, API, and database layers.
Own application features end-to-end, from technical design through deployment and support.
Improve application performance, reliability, maintainability, usability, and security.
Collaborate with front-end or product engineers when integrating APIs, improving UI workflows, or supporting modern front-end experiences.
Maintain and improve legacy .NET Framework applications while supporting new development efforts.
Help establish full-stack development best practices, coding standards, reusable patterns, and documentation.
Use AI-assisted development tools appropriately to support coding, debugging, refactoring, documentation, test creation, and research, while independently validating outputs and maintaining code quality.