C# Engineer – Remote Contractor

About the role

We are looking for an experienced C# Engineer to join our remote expert network on an hourly‑paid contract basis. You will work on AI training data projects, reviewing and generating C#/.NET content, and evaluating AI‑generated responses for accuracy, clarity, and reasoning quality.

Key responsibilities

• Create detailed prompts and model solutions that guide AI learning across diverse technical topics.
• Evaluate, rank, and compare AI responses, identifying errors in methodology, logic, or factual claims.
• Fact‑check technical statements and ensure model outputs are unbiased and reliable.
• Produce high‑quality explanations and step‑by‑step solutions that demonstrate correct engineering practices.
• Collaborate with the AI data services team to continuously improve model performance.

Required profile

• Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent professional experience.
• At least 2 years of professional experience using C#.
• Strong English writing skills (minimum C1 proficiency) and a detail‑oriented mindset.
• Reliable internet connection and consistent availability for remote work.

Required skills

• C# and the .NET ecosystem (ASP.NET Core, Web APIs, async/await, LINQ).
• Relational databases – SQL Server and/or PostgreSQL, with EF Core or Dapper.
• Modern development tooling – Git, CI/CD pipelines, Docker.
• Experience solving medium‑hard algorithmic problems (e.g., LeetCode/HackerRank).

What we offer

• Hourly‑paid freelance contract with flexible remote work.
• Opportunity to contribute to cutting‑edge AI model improvement for leading AI companies.
• Access to future AI‑related projects through our expert network.