Senior .NET Applications Developer (AI & Cloud)

Senior .NET Applications Developer (AI & Cloud)

Location: Phoenix, AZ (Hybrid – 1600 W. Monroe, Phoenix, AZ 85007)

Job Type: Contract / Staff Augmentation (Full-Time, 40 hrs/week)

Contract Duration: 1+ Year (Projected Start: August 31, 2026)

Schedule: Monday – Friday, 8:00 AM – 5:00 PM

Employer: SunSoftOnline

Position Overview

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.

Key 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.
  

Qualifications & Requirements

Required Qualifications:

• Programming Experience: Minimum of 8+ years of professional software engineering experience, with at least 3+ years dedicated strictly to enterprise application development.
  

• Core Tech Stack: Strong mastery of C#, .NET, ASP.NET, JavaScript, RESTful APIs, and MS Visual Studio.
  

• AI & LLM Integration (1–2 Years): Direct professional experience integrating AI models programmatically (AWS Bedrock, Anthropic Claude) and using AI coding assistants (GitHub Copilot, VS Code AI extensions).
  

• DevOps: Hands-on experience with Azure DevOps and/or Team Foundation Server (TFS).
  

• Productivity Tools: Proficient with MS Office (Word, Excel, Outlook) and Google Suite (Gmail, Docs, Sheets, Drive).
  

Preferred Qualifications:

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

Mandatory Submission Requirements

Candidates submitting through SunSoftOnline must provide:

1. Updated Resume (must explicitly state current location in the Phoenix metro area)
   

2. Right to Represent (R2R)
   

3. Confirmation of Hybrid Work Capability (1600 W. Monroe, Phoenix, AZ)
   

Security & Onboarding: Candidates must pass standard security background checks prior to start.