Company

Jobs at Arena

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Urgently Hiring

Crypto Beginner JobsFully Remote Jobs

Job market intelligence

Arena market pulse

Daily open opportunities, newly observed postings, hiring breadth, and normalized monthly compensation for jobs in this pillar.

Open jobs

As of 2026-11-06

Hiring companies

Distinct employers

New this week

-2 vs prior week

Job velocity

Low activity

7 days vs previous 7 days

Compensation by work market

Remote pay is separated from onsite and hybrid pay so expensive cities do not distort the remote benchmark.

Onsite + hybrid

$19.4K/mo

10 salary listings from this company

19 open jobs at 1 hiring companies

Opportunity activity

Open roles, employers, and newly listed jobs by day

All-mode pay history

Historical context; use the work-market split above for current pay

Earlier open counts are estimated from observation dates. Offline postings are never inferred open for more than 90 days; new daily samples are exact snapshots.

Arena

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Series A

San Francisco, United States

Funding history

Series A ($150M)Seed ($100M)

Investors

Andreessen Horowitz (a16z)Felicis Ventures The House Fund Kleiner Perkins Laude Ventures

About Arena

Arena Intelligence, Inc. operates Arena, formerly LMArena and previously known as Chatbot Arena. Its platform measures real-world AI model performance through user comparisons, votes, leaderboards, and agentic evaluation.

About Arena

Arena

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Series A

San Francisco, United States

Funding history

Series A ($150M)Seed ($100M)

Investors

Andreessen Horowitz (a16z)Felicis Ventures The House Fund Kleiner Perkins Laude Ventures

About Arena

Explore More Jobs

AI Marketing San Francisco, USA Andreessen Horowitz Seed Compliance Cybersecurity New York, USA Andreessen Horowitz (a16z)

GTM Strategy and Operations Lead

Arena·1 month ago

1 month agoLead Bay Area Hybrid Full Time Operations Jobs by Arena

View organization details

Series A

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Funding

Series A$150M · 3 Nov, 57984 Seed$100M · 14 Feb, 57355

Investors

Andreessen Horowitz (a16z)Felicis Ventures The House Fund Kleiner Perkins Laude Ventures Lightspeed Venture Partners UC Investments (University of California)Andreessen Horowitz Felicis Ventures The House Fund Kleiner Perkins Laude Ventures LDVP Lightspeed Venture Partners UC Investments (University of California)

View all 15 skills

Accounting Ai Bi Billing Crm Deal Desk Forecasting Gtm Strategy Packaging Pricing Quote-To-Cash Revenue Operations Sales Strategy Sql Usage-Based Revenue

View Details

View Job Details

Software Engineer ML Infrastructure

Arena·1 month ago

1 month agoLeadSalary: 150K - 350KBay Area Hybrid Full Time Backend Jobs by Arena

View organization details

Series A

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Funding

Series A$150M · 3 Nov, 57984 Seed$100M · 14 Feb, 57355

Investors

View all 7 skills

Backend Architecture Distributed Systems Infrastructure Performance Tuning Pytorch Stream Processing Systems Design

View Details

View Job Details

Software Engineer Marketing and Web

Arena·1 month ago

1 month agoLead Bay Area Hybrid Full Time Frontend Jobs by Arena

View organization details

Series A

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Funding

Series A$150M · 3 Nov, 57984 Seed$100M · 14 Feb, 57355

Investors

View all 18 skills

Accessibility Api Chart Cms Core Web Vitals Css Data Visualization Frontend Honojs Json-Ld Next.Js React Responsive Design Sanity Seo Shadcn Tailwind Typescript

View Details

View Job Details

Software Engineer Full Stack

Arena·1 month ago

1 month agoSenior Bay Area Hybrid Full Time Fullstack Jobs by Arena

View organization details

Series A

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Funding

Series A$150M · 3 Nov, 57984 Seed$100M · 14 Feb, 57355

Investors

View all 15 skills

Api Backend Database Frontend Honojs Next.Js Postgres Product Development React Supabase Tailwind Typescript Vercel Ai Sdk Vitest Web Application

View Details

View Job Details

Software Engineer Data Infrastructure

Arena·1 month ago

1 month agoLeadSalary: 150K - 350KBay Area Hybrid Full Time Engineering Jobs by Arena

View organization details

Series A

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Funding

Series A$150M · 3 Nov, 57984 Seed$100M · 14 Feb, 57355

Investors

View all 14 skills

Apache Spark Big Data Dashboard Databricks Data Engineering Data Pipeline Data Processing Data Quality Python R Ray Data Scala Snowflake Sql

View Details

View Job Details

Product Solutions Engineer

Arena·1 month ago

1 month agoSeniorSalary: 150K - 250KBay Area Hybrid Full Time Forward Deployed Engineer Jobs by Arena

View organization details

Series A

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Funding

Series A$150M · 3 Nov, 57984 Seed$100M · 14 Feb, 57355

Investors

View all 10 skills

Algorithm Api Backend Ci/Cd Cloud Infrastructure Data Structure Frontend Llm System Design Typescript

View Details

View Job Details

Machine Learning Scientist ML Research

Arena·1 month ago

1 month agoBay Area Hybrid Full Time Research Jobs by Arena

View organization details

Series A

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Funding

Series A$150M · 3 Nov, 57984 Seed$100M · 14 Feb, 57355

Investors

View all 14 skills

Ai Evaluation Contrastive Learning Diffusion Model Dpo Jax Llm Machine Learning Nlp Python Pytorch Rlhf Statistics Tensorflow Transformer

View Details

View Job Details

Applied AI Engineer

Arena·1 month ago

1 month agoSeniorSalary: 150K - 250KBay Area Hybrid Full Time Forward Deployed Engineer Jobs by Arena

View organization details

Series A

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Funding

Series A$150M · 3 Nov, 57984 Seed$100M · 14 Feb, 57355

Investors

View all 10 skills

Algorithm Api Backend Ci/Cd Cloud Infrastructure Data Structure Frontend Llm System Design Typescript

View Details

View Job Details

Member of Design Staff Product

Arena·1 month ago

1 month agoLead Bay Area Hybrid Full Time Design Jobs by Arena

View organization details

Series A

Arena is a community-powered AI evaluation platform where people compare frontier-model outputs and vote, generating human-preference data and public leaderboards.

Funding

Series A$150M · 3 Nov, 57984 Seed$100M · 14 Feb, 57355

Investors

View all 8 skills

Analytics Design System Figma Interaction Design Prd Product Design Prototyping Visual Design

View Details

View Job Details

Jobs at Arena

Arena market pulse

Compensation by work market

Opportunity activity

All-mode pay history

About Arena

Filters

Applied filters

Role & requirements

Work setup & location

Pay & timing

Company & funding

Developer activity

Protocol & market

Sort results

Applied filters

Role & requirements

Work setup & location

Pay & timing

Company & funding

Developer activity

Protocol & market

Sort results