Performance Engineer
US$70 – US$110 / hr base salary
Posted 29 Jul 2026
Advertised as “Performance Engineer (C++, Python, Rust)”
BranchFactor Summary
The original posting with the fluff stripped out
- Expected experience
- 2+ yrs
- Management level
- Individual contributor
- Employment
- Remote
- Contract
- Part-time
- Visa sponsorship
- Not offered
| Base salary | US$70 – US$110 / hr |
|---|
This role is for one of our clients
Compensation: $70-$110 per hour
Join a cutting-edge AI research initiative and help advance the next generation of Large Language Models by contributing your expertise in systems optimization and performance engineering. We are seeking experienced Performance Engineers with deep knowledge of C++, Python, Rust, and low-level systems optimization to support the development of high-quality AI training and evaluation data.
In this role, you'll work alongside AI researchers and engineering teams to design, evaluate, and refine challenging performance engineering tasks that improve the reasoning capabilities of frontier AI models. Your expertise in optimizing production systems, runtime performance, compiler behavior, and systems architecture will directly contribute to building more capable AI systems.
This is a full-time, 40-hour-per-week remote engagement requiring full weekday availability.
Requirements
Key Responsibilities
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Collaborate with research and engineering teams to improve AI capabilities in systems programming, compiler optimization, runtime performance, and low-level engineering concepts.
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Design challenging, real-world performance engineering tasks that reflect production-scale optimization scenarios.
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Develop accurate, well-documented solutions to complex systems programming and performance optimization problems.
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Review and evaluate AI-generated solutions, providing detailed technical feedback on correctness, efficiency, and engineering quality.
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Create comprehensive evaluation frameworks and scoring rubrics for topics including:
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Systems architecture
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Runtime optimization
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Compiler engineering
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Memory management
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CPU and GPU performance
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Concurrency and parallel processing
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Collaborate with fellow subject matter experts to ensure consistency, technical accuracy, and quality across AI training datasets.
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Contribute domain expertise to enhance the reasoning capabilities of advanced AI models.
Required Qualifications
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Minimum 2 years of professional experience in Performance Engineering, Systems Programming, or Low-Level Software Optimization.