Senior Software Engineer, ML Infrastructure
LMArena
About this role
The Senior Software Engineer, ML Infrastructure at LMArena is responsible for designing and developing scalable, high-performance, real-time data and API infrastructure to support AI model evaluations. This role involves architecting systems to process large volumes of serving requests, ensuring data integrity and reliability, and mentoring engineers on best practices. Candidates should have substantial experience in distributed systems, low-latency design, and building fault-tolerant services, and thrive in fast-paced environments. Collaboration with cross-functional teams is essential to meet evolving infrastructure needs.
Skills
About LMArena
www.lmarena.aiLMArena 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.
Recent company news
ReutersAI startup LMArena triples its valuation to $1.7 billion in latest fundraise
Jan 6, 2026
The InformationAI Evaluation Startup LMArena Valued at $1.7 Billion in New Funding Round
Jan 6, 2026
TechCrunchLMArena lands $1.7B valuation four months after launching its product
Jan 6, 2026
SiliconANGLEAI evaluation startup LMArena raises $150M at $1.7B valuation
Jan 6, 2026
Mexico Business NewsLMArena Hits US$1.7 Billion Valuation After Series A Round
Jan 7, 2026
About LMArena
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Leadership Team
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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View leadership team, funding history,
and employee contacts for LMArena.
Salary
$152k – $204k
per year