System Performance Engineer

• 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.

• 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.

Jones Lang LaSalle

• Jersey City, NJ
• $140,000-160,000 per year JLL empowers you to shape a brighter way. Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology fo…, © 2026 Careerjet All rights reserved