Senior .NET Applications Developer (AI & Cloud)

Job Description

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:

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)

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

Full-time

Hybrid remote