> Markdown version of [/jobs/ext/269470-system-performance-engineer](https://www.wearedevelopers.com/jobs/ext/269470-system-performance-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Performance Engineer - **Company:** Mercor, Inc. - **Location:** New York, NY, United States (Remote available) - **Experience:** Expert - **Salary:** $187,200.0 - $249,600.0 - **Contract:** Permanent contract - **Skills:** Training Data, Artificial Intelligence, C++ (Programming Language), Memory Management, Python (Programming Language), System Programming - **Published:** May 23, 2026 - **Apply:** https://www.careerjet.com/jobad/us0e04715ae7394b21f5eae841d418d1c7 ## About the Role * 5+ years of experience in performance engineering, systems programming, or low-level optimization. * Expertise in C++ for performance-critical systems, including memory management and concurrency primitives. * Proficiency in Python for profiling and benchmarking; experience with Rust is a plus. * Track record of measurable performance improvements on production systems. * Ability to engage for at least 30 hours/week during weekdays. * Strong written communication skills. ## Description * Guide research and engineering teams to improve AI model performance in systems-level optimization, compiler engineering, and runtime performance. * Design challenging tasks across multiple specializations and write accurate solutions to performance engineering problems. * Evaluate tasks and solutions, providing clear, written technical feedback. * Develop guidelines and rubrics for assessing systems design quality, profiling methodology, and performance analysis. * Collaborate with subject matter experts to ensure consistency and accuracy in training data., PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity. ## Related Videos - [Is it still C#? Practical systems programming with .NET (war stories included)](https://www.wearedevelopers.com/videos/100138-is-it-still-c-practical-systems-programming-with-net-war-stories-included) - [Fireside Chat: Deep Learning, Deep Impact: Harnessing AI for Language Innovation](https://www.wearedevelopers.com/videos/612-fireside-chat-deep-learning-deep-impact-harnessing-ai-for-language-innovation) - [Guided Memory Management: Rust's Ownership Model](https://www.wearedevelopers.com/videos/809-guided-memory-management-rust-s-ownership-model) - [Get ready to Rustle](https://www.wearedevelopers.com/videos/698-get-ready-to-rustle) - [Turbocharged: Writing High-Performance C# and .NET Code](https://www.wearedevelopers.com/videos/394-turbocharged-writing-high-performance-c-and-net-code) - [Systems Thinking for Performance: How to Diagnose and Fix Slow Systems without Guessing](https://www.wearedevelopers.com/videos/2103-systems-thinking-for-performance-how-to-diagnose-and-fix-slow-systems-without-guessing) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Everything a Developer Needs to Know About MCP with Neo4j](https://www.wearedevelopers.com/magazine/604-everything-a-developer-needs-to-know-about-mcp-with-neo4j) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [How Much Does a Software Engineer Make? Realistic Software Engineering Salaries](https://www.wearedevelopers.com/magazine/425-how-much-does-a-software-engineer-make-realistic-software-engineering-salaries) - [Data Science & more: The Lopez dilemma](https://www.wearedevelopers.com/magazine/10-data-science-more-the-lopez-dilemma)