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Xperteez Technology

🌍 Backend C#/.NET Developer, Remote - Contract

Sorry, this job was removed at 05:05 a.m. (CST) on Friday, Sep 25, 2026
Remote
Hiring Remotely in United States
Entry level
Remote
Hiring Remotely in United States
Entry level

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Develop and maintain backend services and RESTful APIs using C# and .NET. Design and optimize MySQL schemas and queries, troubleshoot production and staging issues, improve performance and scalability, document architecture, and uphold code quality and security. Collaborate with cross-functional teams in a fully remote environment while contributing to development best practices and continuous improvement.
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Job Title: Backend C#/.NET Developer

Job Type: Contract

Location: Remote

Required Skills:

  • C#

  • .NET

  • MySQL

Job Summary:

In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Key Responsibilities:

  • Design, develop, and maintain robust backend services and APIs using C# and .NET frameworks.

  • Collaborate with cross-functional teams to define technical requirements and deliver scalable solutions.

  • Ensure high standards of code quality, reliability, and security in all backend implementations.

  • Optimize existing backend processes for performance, scalability, and maintainability.

  • Troubleshoot, debug, and resolve backend issues efficiently in production and staging environments.

  • Document technical specifications and backend architecture clearly for team collaboration.

  • Contribute to the continuous improvement of development processes and best practices.

Required Skills and Qualifications:

  • Expert-level proficiency in C# and the .NET ecosystem.

  • Strong experience with MySQL databases, including schema design and query optimization.

  • Solid understanding of server-side logic, RESTful API development, and integration patterns.

  • Track record of writing clean, maintainable, and well-documented code.

  • Excellent written and verbal communication skills, with an emphasis on clarity and collaboration.

  • Ability to work independently in a fully remote setting while managing priorities effectively.

  • Proactive problem-solving skills and a commitment to continuous learning.

  • Preferred Qualifications:

  • Experience developing and deploying cloud-hosted applications (e.g., AWS, Azure, GCP).

  • Background working with distributed teams and Agile methodologies.

  • Previous work in high-growth, innovation-driven environments.

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