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At LMArena, we’re always on the lookout for exceptional people - even if there’s no open role that’s a perfect fit right now.
If you believe your skills and experience align with our mission and you're excited about what we're building, we’d love to hear from you.
Here are some of the roles we’re actively exploring - or perhaps you’re something entirely unique we didn’t know we needed yet:
Engineering Manager
Software Engineer (API Product / Product Platform)
Software Engineer (Data Infrastructure)
Data Scientist / Research Engineer (Human Data & Evaluation)
Design Engineer
GTM Engineer
Backend AI Engineer
Or maybe you're a passionate contributor eager to join a fast-growing team solving meaningful problems.
Either way - don’t hesitate to introduce yourself, complete an application today!
Who is LMArena?
Created by researchers from UC Berkeley’s SkyLab, LMArena is an open platform where everyone can easily access, explore and interact with the world’s leading AI models. By comparing them side by side and casting votes for the better response, the community helps shape a public leaderboard, making AI progress more transparent, and grounded in real-world usage.
Why Join Us?
Trusted by organizations like Google, OpenAI, Meta, xAI, and more, LMArena is rapidly becoming essential infrastructure for transparent, human-centered AI evaluation at scale. With over one million monthly users and growing developer adoption, our impact is helping guide the next generation of safe, aligned AI systems—grounded in open access and collective feedback.
Our work is regularly referenced by industry leaders pushing the frontier of safe and reliable AI. Sundar Pichai, Jeff Dean, Elon Musk, and Sam Altman.
High Impact: Your work will be used daily by the world’s most advanced AI labs.
Global Reach: Develop data infrastructure powering millions of real-world evaluations, influencing AI reliability across industries at the top-tier
Exceptional Team: We are a small team of top talent from Google, DeepMind, Discord, Vercel, UC Berkeley, and Stanford.
What we offer:
Competitive salary and meaningful equity
Comprehensive healthcare coverage (medical, dental, vision)
The opportunity to work on cutting-edge AI with a small, mission-driven team
A culture that values transparency, trust, and community impact
Come help design the space where anyone can explore and help shape the future of AI!
LMArena San Francisco, California, USA Office
San Francisco, California, United States, 94104
What you need to know about the San Francisco Tech Scene
Key Facts About San Francisco Tech
- Number of Tech Workers: 365,500; 13.9% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Google, Apple, Salesforce, Meta
- Key Industries: Artificial intelligence, cloud computing, fintech, consumer technology, software
- Funding Landscape: $50.5 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Sequoia Capital, Andreessen Horowitz, Bessemer Venture Partners, Greylock Partners, Khosla Ventures, Kleiner Perkins
- Research Centers and Universities: Stanford University; University of California, Berkeley; University of San Francisco; Santa Clara University; Ames Research Center; Center for AI Safety; California Institute for Regenerative Medicine
