Rust Software Engineering Expert at Mercor

Rust Software Engineering Expert | $60–100/hr | Worldwide Remote

Mercor is seeking experienced Rust engineers and software professionals to evaluate and improve AI-generated code responses for leading AI development teams. This is a flexible contract role open to both US-based and international candidates.

Why This Role Exists

Mercor partners with top AI teams to enhance the quality, accuracy, and reliability of conversational AI systems. In software engineering contexts, these systems must demonstrate correct reasoning, strong problem-solving, and adherence to real-world best practices. Your expertise will directly shape how AI models reason about code, generate solutions, and explain technical concepts.

What You'll Do

• Evaluate LLM-generated responses to coding and software engineering queries for accuracy, reasoning, clarity, and completeness
• Conduct fact-checking using trusted public sources and authoritative references
• Execute code and validate outputs using appropriate tools
• Annotate model responses by identifying strengths, areas for improvement, and factual or conceptual inaccuracies
• Assess code quality, readability, algorithmic soundness, and explanation quality
• Ensure model responses align with expected conversational behavior and system guidelines
• Apply consistent evaluation standards using clear taxonomies, benchmarks, and detailed evaluation guidelines

Who You Are

• Holds a BS, MS, or PhD in Computer Science or a closely related field
• 5+ years of real-world experience in software engineering or related technical roles
• Expert-level proficiency in Rust
• Able to independently solve HackerRank or LeetCode Medium and Hard-level problems
• Experience contributing to well-known open-source projects with merged pull requests
• Significant experience using LLMs in coding workflows, with an understanding of their strengths and failure modes
• Strong attention to detail and comfort evaluating complex technical reasoning

Nice-to-Have Skills

• Prior experience with RLHF, model evaluation, or data annotation
• Competitive programming background
• Experience reviewing code in production environments
• Familiarity with multiple programming paradigms or ecosystems
• Ability to explain complex technical concepts to non-expert audiences

Why Join Mercor

This remote role lets you apply deep technical expertise to high-impact AI development work, directly improving systems used by developers worldwide. Flexible scheduling makes it ideal for engineers seeking meaningful contract work alongside other commitments.