AI Native - Full stack Developer (No VISA or H1B accepted)

Zaruda; Seattle (WA); Hybrid; USD 150,000 - 190,000; Full time

Job summary

Zaruda LLC is seeking an experienced Senior Software Engineer for AI-native .NET development. You will design and ship production applications using AI-assisted coding tools as a core part of your workflow, not just experimentation.

Strong ownership of backend services and delivering scalable, production-ready software is essential. The role emphasizes collaborative pairing/mob programming (~4–5 hours daily), Azure DevOps CI/CD, and delivering REST APIs and microservices with C#, ASP.NET Core,

Qualifications

• Hands-on AI-assisted development with tools like Copilot, Cursor, Windsurf.
• Explain how AI enabled production-quality code, refactoring, and tests.
• Strong production experience with C#, .NET, ASP.NET Core, REST APIs, microservices, SQL Server, testing.
• Own backend services and deliver scalable, production-ready apps.
• Collaborative pairing or mob programming daily (4–5 hours).

Responsibilities

• Design and build scalable applications using C# and ASP.NET Core
• Develop REST APIs and microservices
• Use AI-assisted development tools throughout lifecycle
• Refactor and modernize existing applications
• Diagnose complex technical issues and create tests
• Participate in pair/mob programming
• Code reviews and contribute to standards
• Build and maintain CI/CD pipelines in Azure DevOps
• Collaborate with PMs, designers, QA, and developers

Skills

AI-Native development

C#/.NET

ASP.NET Core

REST APIs

Microservices

SQL Server

Unit & integration tests

Code reviews

Mob programming

Agile / Scrum

Mentoring

Azure DevOps

Tools

GitHub Copilot

Microsoft Copilot

Cursor

Windsurf

Job description

Zaruda LLC | Remote |Location USA | Contract or Full-Time

Location: Remote / Hybrid

Employment Type: Full-Time

AI-Native Software Engineer (.NET)

# Senior Software Engineer – AI-Native .NET Development

Role Summary

We are looking for an experienced Senior Software Engineer who has built and shipped production applications using modern AI-assisted development practices.

This is not a traditional .NET development role. We need an engineer who uses AI coding tools as a core part of their daily workflow—not someone who has merely experimented with them. You must be able to explain and demonstrate how AI has helped you deliver production software faster, improve code quality, solve complex engineering problems, and modernize existing applications.

What You’ll Do

• Design and build scalable applications using C# and ASP.NET Core
• Develop REST APIs and microservices using clean architecture principles
• Use AI-assisted development tools throughout the software-development lifecycle
• Refactor and modernize existing applications
• Diagnose and resolve complex technical issues
• Create reliable unit and integration tests
• Participate actively in pair and mob programming sessions
• Conduct code reviews and contribute to engineering standards
• Build and maintain CI/CD pipelines in Azure DevOps
• Collaborate with product managers, designers, QA engineers, and other developers

Required Qualifications

AI-Native Software Development — Highest Priority

You must have hands-on experience using tools such as:

• GitHub Copilot or Microsoft Copilot
• Cursor, Windsurf, or comparable AI coding assistants

You should be prepared to explain how you use AI to:

• Generate and validate production-quality code
• Refactor existing applications
• Create unit and integration tests
• Improve development speed and engineering quality

Your résumé should clearly describe your AI-assisted development experience, including specific tools, production use cases, and measurable outcomes whenever possible.

Strong production experience with:

• C#
• .NET and ASP.NET Core
• REST APIs
• Microservices
• SQL Server
• Unit and integration testing

You must have experience owning backend services and delivering scalable, production-ready applications.

Collaborative Engineering

Demonstrated experience with:

• Mob programming
• Agile or Scrum delivery
• Code reviews
• Cross-functional collaboration
• Mentoring or technical leadership

This role involves approximately four to five hours of collaborative pairing or mob programming each day. You must be comfortable developing software in a highly collaborative environment.

Azure DevOps and CI/CD

Hands-on experience with:

• Git-based source control
• Automated build and release processes

Preferred Qualifications

• React and TypeScript
• Docker and Kubernetes
• Android or iOS development
• AI agent frameworks
• LLM integrations
• Retrieval-Augmented Generation (RAG) applications

Experience

• Five or more years of professional software-engineering experience
• Proven experience shipping customer-facing production software
• Strong ownership of application design, implementation, testing, and deployment
• Ability to learn and apply new technologies quickly

Your résumé must include concrete examples of how you have used AI development tools to deliver production software. Simply listing tools such as Claude Code, Copilot, Cursor, or Windsurf without describing how you used them will not be sufficient.