Contract

Workiy; Irvine (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

Workiy seeks a Senior Full Stack .NET Developer in Irvine, CA to lead architecture, development, testing, and deployment across on-premises and cloud environments. You will leverage C#, .NET, React/Angular, Azure, SQL Server, and microservices while applying AI-assisted coding practices and LLM tools to streamline workflows.

The role emphasizes technical leadership, collaboration with business users, QA, BA, and third-party vendors, and proactive improvement of processes and code quality in both

Qualifications

• Gather and analyze business and technical requirements.
• Develop applications in on-premises and cloud-native environments.
• Enhance and troubleshoot existing applications.
• Experience with LLM-based coding agents and AI-assisted development.
• Design technical solutions and documentation.
• Collaborate with business users, QA, BA, and vendors.
• Support deployments, testing, and production enhancements.

Responsibilities

• Develop applications in on-premises and cloud-native environments.
• Collaborate with BA, QA teams, and vendors.
• Support deployments, testing, releases, and production enhancements.
• Troubleshoot and enhance existing applications.
• Apply agentic coding and prompt engineering for complex tasks.

Skills

C#

.NET

React

Angular

Azure

SQL Server

Microservices

LLM coding

Prompt engineering

Technical leadership

Tools

Claude

OpenCode

Copilot

Job description

Irvine, United States | Posted on 08/18/2026

Workiy is a leading IT solutions and staff augmentation company committed to driving business success through talent acquisition and technology expertise. With a proven track record of excellence, Workiy empowers organizations across industries by connecting them with top-tier IT professionals and delivering innovative technology solutions.

Job Description

We are seeking a Senior Full Stack .NET Developer with strong experience in C#, .NET, React and/or Angular, Azure, SQL Server, and microservices to join our client team in Irvine, CA.

The ideal candidate will have strong technical leadership experience across application architecture, development, testing, deployment, and maintenance in both on-premises and cloud-native environments. Experience leveraging LLM-based coding agents and AI-assisted development practices is highly preferred.

Requirements

• Gather and analyze business and technical requirements.
• Develop applications in on-premises and cloud-native environments.
• Enhance and troubleshoot existing applications.
• Leverage LLM coding agents such as Claude/OpenCode for coding, refactoring, debugging, and prototyping.
• Apply agentic coding and prompt engineering for large-scale codebases and root-cause analysis.
• Design technical solutions and prepare specifications/documentation.
• Collaborate with business users, BA, QA teams, and third-party vendors.
• Support deployments, releases, testing, training, and production enhancements.
• Identify process improvements and proactively resolve technical issues. Gather and analyze business and technical requirements.
• Build solutions across on-premises and cloud environments.
• Troubleshoot and enhance existing applications.
• Use LLM/AI coding tools such as Claude, OpenCode, or Copilot for development and refactoring.
• Apply agentic coding and prompt engineering for complex development tasks.
• Design technical solutions and documentation.
• Collaborate with BA, QA, business users, and vendors.
• Support testing, deployments, releases, and production enhancements.