.NET Developer

Estuate, Inc.; Houston (TX); On-site; USD 80,000 - 120,000; Full time

Job summary

Estuate, Inc. seeks a skilled .NET Developer in Houston to design, develop, and maintain scalable enterprise applications using C#, .NET Core/6+, and SQL Server.

You will leverage AI-assisted tools such as Claude and GitHub Copilot to boost productivity, improve code quality, testing, and documentation. You will implement REST APIs, complex queries, and backend services while adhering to architectural standards and Agile practices.

Qualifications

• Proficient in C# and .NET Core/.NET 6+ with enterprise app experience.
• Strong SQL Server skills including complex queries and procedures.
• Hands-on API development, REST/JSON, EF Core, and CI/CD familiarity.

Responsibilities

• Design, develop, and maintain enterprise applications using Microsoft stack.
• Build and optimize REST APIs, DB queries, and backend services.
• Leverage GitHub Copilot and Claude to accelerate development and ensure quality.
• Review AI-generated code for security, performance, and best practices.
• Collaborate across teams in an Agile environment and support testing/documentation.

Skills

C# / .NET Core

Web API

SQL Server

REST APIs

AI coding tools

AI-assisted development

OOD / SOLID

Git / CI-CD

Tools

GitHub Copilot

Claude

Job description

Job Title

.NET Developer

Location

Houston, TX

Contract

12 Months

Job Summary

We are seeking a skilled .NET Developer with strong experience in C#, .NET Core/.NET 6+, SQL Server, and modern AI-assisted development tools such as Claude and GitHub Copilot. The candidate will design, develop, enhance, and maintain scalable enterprise applications while leveraging AI tools to improve development productivity, code quality, testing, and documentation.

Key Responsibilities

• Design, develop, and maintain enterprise applications using C#, .NET Core/.NET 6/7/8, Core, Web API, and related Microsoft technologies.
• Develop complex SQL Server queries, stored procedures, views, functions, and database integrations.
• Perform database design, query optimization, indexing, and performance tuning.
• Build and integrate REST APIs and backend services.
• Use GitHub Copilot and Claude to accelerate software development, code generation, refactoring, debugging, test creation, and technical documentation.
• Review and validate AI-generated code for accuracy, security, performance, maintainability, and coding standards.
• Collaborate with architects, developers, QA, DevOps, and business teams to deliver solutions.
• Develop unit/integration tests and troubleshoot production issues.
• Participate in code reviews and follow Agile development practices.
• Identify opportunities to incorporate Generative AI/LLM capabilities into existing applications and development workflows.

Required Skills

• Strong hands‑on experience with C# and .NET / .NET Core.
• Strong Core / Web API development experience.
• Advanced SQL Server skills, including complex queries and stored procedures.
• Experience with REST APIs, JSON, Entity Framework/Core, and backend application development.
• Hands-on experience with GitHub Copilot and Claude/Claude Code or similar AI coding assistants.
• Ability to effectively prompt, review, refine, and validate AI-generated code.
• Strong understanding of OOP, design patterns, SOLID principles, and software development best practices.
• Experience with Git and CI/CD environments.
• Strong debugging, troubleshooting, and problem-solving skills.