GenAI Performance Engineer: C++, Python, Rust Expert

Mercor; New York (NY); On-site; USD 110,000 - 170,000; Full time

Job summary

Cincinnatus LLC is seeking talented Performance Engineers with deep expertise in low-level optimization to advance AI training and inference infrastructure data. The role involves hands-on work with C++, Python, and Rust, and requires a 40-hour work week as part of a W-2 engagement placed at a leading AI Lab.

Design and evaluate performance tasks, provide technical feedback, and contribute to high-quality training data for frontier AI systems.

Qualifications

• 2+ years of professional experience in performance engineering, systems programming, or low-level optimization.
• Hands-on expertise in C++, Python, or Rust with familiarity across others being a plus.
• Demonstrable track record of performance improvements on production systems.
• Career progression demonstrated.

Responsibilities

• Guide research and engineering teams to close knowledge gaps and improve AI model performance in systems-level optimization, compiler engineering, and runtime performance topics.
• Design domain-specific tasks and write accurate solutions to performance engineering problems.
• Evaluate performance tasks and provide clear technical feedback in writing.
• Develop guidelines and rubrics to assess systems design quality across AI workloads.
• Collaborate with subject matter experts to ensure training data accuracy and consistency.

Skills

C++

Python

Rust

Job description

Cincinnatus LLC is seeking talented Performance Engineers with deep expertise in low-level optimization to advance AI training and inference infrastructure data. The role involves hands-on work with C++, Python, and Rust, and requires a 40-hour work week as part of a W-2 engagement placed at a leading AI Lab.

Design and evaluate performance tasks, provide technical feedback, and contribute to high-quality training data for frontier AI systems.