Remote: Senior C# .Net Developer

Recruiterthon LLC; United States; On-site; USD 83,000 - 124,000; Full time

Job summary

Recruiterthon LLC seeks an experienced C# Developer for a 6-12 month contract. You will join a development team to build modern web applications and backend services, using AI-assisted coding tools to boost productivity.

The ideal candidate has 5+ years in C#/.NET, strong async programming skills, and experience with RESTful web APIs. You will mentor junior engineers and contribute to production-grade solutions in a fast-paced environment.

Qualifications

• 5+ years of professional experience with C# and .NET
• Strong understanding of asynchronous programming (async/await)
• Experience building or consuming RESTful web APIs
• Analytical thinking and logical problem solving
• Knowledge of object-oriented programming principles
• Familiarity with Git
• Hands-on experience with Generative AI coding tools in the last 6 months
• Good communication and ability to work as an independent contributor

Responsibilities

• Develop, maintain, and optimize C#-based web applications and APIs
• Work with asynchronous programming patterns in C# to build efficient and scalable web APIs
• Leverage Generative AI tools to accelerate coding, code review, debugging, and documentation
• Analyze requirements and translate them into clean, maintainable code
• Debug, troubleshoot, and resolve technical issues
• Participate in code reviews and follow best coding practices
• Continuously learn and apply new technologies and frameworks

Skills

C#

Async programming

Web APIs

Generative AI tools

Analytical thinking

Git

Independent contributor

Job description

Duration: 6-12 month of Contract with Possible Extension

About the Role

Client is looking for an experienced C# Developer with 5+ years of professional C# development experience, strong analytical skills, and logical reasoning to join our development team. You'll work on modern web applications, contribute to backend services, and collaborate with cross-functional teams to design, build, and maintain scalable, production-grade solutions. The ideal candidate has hands-on experience using Generative AI coding tools (e.g., GitHub Copilot, ChatGPT, Claude) within the last six months to accelerate development and improve code quality.

This role is ideal for a seasoned developer who can operate independently, mentor junior engineers, and responsibly leverage AI-assisted development tools to accelerate delivery in a real-world, production environment.

Responsibilities

• Develop, maintain, and optimize C#-based web applications and APIs
• Work with asynchronous programming patterns in C# to build efficient and scalable web APIs
• Leverage Generative AI tools (e.g., GitHub Copilot, ChatGPT, Claude) to accelerate coding, code review, debugging, and documentation
• Analyze requirements and translate them into clean, maintainable code
• Debug, troubleshoot, and resolve technical issues
• Participate in code reviews and follow best coding practices
• Continuously learn and apply new technologies and frameworks

Required Skills & Qualifications

• 5+ years of professional experience with C# and .NET. Ability to pivot to other technology using Agentic AI models to code.
• Solid understanding of asynchronous programming (async/await, task-based patterns)
• Experience building or consuming web APIs (RESTful services)
• Strong analytical thinking and logical problem-solving skills
• Understanding of object-oriented programming principles
• Familiarity with version control systems (e.g., Git)
• Hands-on experience using Generative AI coding tools (e.g., GitHub Copilot, ChatGPT, Claude) to write, review, or debug code within the last 6 months
• Good communication skills and ability to perform as an independent contributor.

Preferred Qualifications

• Experience working as a Full Stack Developer
• Basic knowledge of databases (SQL or NoSQL)
• Familiarity with cloud platforms or deployment pipelines
• Experience integrating AI/LLM APIs or applying prompt engineering techniques within applications