Senior .NET Applications Developer (AI & Cloud)

SunSoft Online • Phoenix, AZ

2d • Hybrid

About The Position

SunSoftOnline is seeking a high-performing Senior .NET Applications Developer to join our team on a long-term contract engagement in Phoenix, AZ supporting state agency systems. This role operates on a hybrid schedule and requires a senior engineer who combines deep expertise in C#, .NET, and cloud services with modern AI-assisted engineering skills. You will design, build, and maintain enterprise software while integrating cutting-edge Generative AI features (AWS Bedrock, Anthropic Claude) into application workflows using tools like GitHub Copilot.

Requirements

• Minimum of 8+ years of professional software engineering experience, with at least 3+ years dedicated strictly to enterprise application development.
• Strong mastery of C#, .NET, ASP.NET, JavaScript, RESTful APIs, and MS Visual Studio.
• Direct professional experience integrating AI models programmatically (AWS Bedrock, Anthropic Claude) and using AI coding assistants (GitHub Copilot, VS Code AI extensions).
• Hands-on experience with Azure DevOps and/or Team Foundation Server (TFS).
• Proficient with MS Office (Word, Excel, Outlook) and Google Suite (Gmail, Docs, Sheets, Drive).
• Candidates submitting through SunSoftOnline must provide: Updated Resume (must explicitly state current location in the Phoenix metro area), Right to Represent (R2R), Confirmation of Hybrid Work Capability (1600 W. Monroe, Phoenix, AZ).
• Candidates must pass standard security background checks prior to start.

Nice To Haves

• Bachelor’s Degree in Computer Science, Software Engineering, or a closely related technical discipline.

Responsibilities

• Enterprise .NET Development: Architect, code, test, and deploy robust web and enterprise applications using C#, ASP.NET, JavaScript, and REST APIs.
• Generative AI Feature Engineering: Programmatically build and integrate enterprise application features utilizing AWS Bedrock and Anthropic Claude.
• AI-Assisted Coding: Leverage modern developer tooling (GitHub Copilot, VS Code AI extensions) to accelerate software delivery and code quality.
• DevOps & ALM: Manage code repositories, automated builds, and deployment pipelines within Azure DevOps / TFS.
• Database & Architecture: Design clean backend services, optimize data access layers, and enforce modern architectural patterns.
• Collaborative Delivery: Partner with system architects, project managers, and business analysts to translate complex business logic into high-performing software.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior