Arena AI
The Senior Machine Learning Engineer at LMArena is responsible for scaling and strengthening the core infrastructure for AI evaluation, specifically focusing on data pipelines, inference APIs, and evaluation methodologies. This role involves close collaboration with researchers and engineers to architect full-stack data and model training systems, conduct research on state-of-the-art evaluation methods, and foster a culture of feedback and rapid iteration in product development. Candidates should have strong programming skills, experience in deep learning and language models, and a solid understanding of statistical evaluation methodologies.
LMArena is an innovative platform designed for evaluating AI through human preferences. It allows users to compare various AI models, gather insights, and share their feedback to enhance AI development and research. The platform features a public leaderboard, providing a competitive edge for the best AI models based on user interactions and performance assessments. LMArena serves as a comprehensive resource for those looking to explore and engage with advanced AI technologies.
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
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and employee contacts for Arena AI.
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AI evaluation startup LMArena raises $150M at $1.7B valuation
Jan 6, 2026