C# Engineer - AI Training
Braintrust
Job Overview
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Job Description
Compensation
Compensation is competitive and varies based on location, education level, and prior experience.
Role Description
As a Senior C# Engineer, you will work remotely on an hourly paid basis to review AI-generated C# code, .NET application designs, and technical explanations. You will generate high-quality reference implementations and step-by-step reasoning for complex engineering problems. Your responsibilities include assessing solutions for accuracy, clarity, safety, and adherence to the prompt; identifying errors in logic, memory usage, concurrency, threading, or performance; fact-checking technical information; writing detailed technical explanations; and rating multiple AI responses based on correctness and reasoning quality.
This contractor role is with SME Careers, a fast-growing AI data services company and subsidiary of SuperAnnotate that works with some of the world’s largest AI companies and foundation model labs. Your expertise in C# and .NET will help improve premier AI models used by millions of developers worldwide.
Your Profile
- Bachelor’s degree or higher in Computer Science, Software Engineering, or related field.
- 4+ years professional experience with production software development in C#.
- Expert proficiency in C# and the .NET ecosystem including memory management, async/await, threading, and exception handling.
- Strong background in concurrency, multithreading, performance optimization, and application architecture.
- Experience with .NET tooling (Visual Studio, Rider, MSBuild, dotnet CLI) and debugging/profiling tools.
- Minimum C1 English proficiency for clear technical writing.
- Experience in detailed code reviews, enforcing coding standards, and CI/CD workflows with version control systems.
- Experience with AI data training, annotation, or evaluation is a strong plus.
- Highly detail-oriented with a systematic approach to evaluating complex code.
Key skills/competency
- C#
- .NET
- AI Training
- Code Review
- Software Engineering
- Concurrency
- Performance Optimization
- Async/Await
- Tooling
- Technical Explanations
How to Get Hired at Braintrust
- Research Braintrust's culture: Learn mission, values, and latest news.
- Customize your resume: Highlight C# and .NET expertise.
- Showcase AI training: Detail code review and technical skills.
- Prepare examples: Share past code review experiences and outcomes.
- Follow guidelines: Adhere to application instructions precisely.
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