Jobs at Arena

Technical Recruiter

Arena·29 minutes ago

29 minutes agoSalary: 150K - 260KBay Area Hybrid Full Time Human Resources Jobs by Arena

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

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

Funding

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)

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Analytics Interviewing Machine Learning Negotiation Recruiting Research Sourcing

People Operations Lead

Arena·34 minutes ago

34 minutes agoBay Area Hybrid Full Time People Jobs by Arena

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

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

Funding

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)

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Ai Career Development Compensation Compliance Employee Relations Headcount Planning Hr Hr Business Partnering Onboarding Organizational Design People-Operations Performance Management

Associate General Counsel AI Product and Privacy

Arena·34 minutes ago

34 minutes agoBay Area Hybrid Full Time Legal Jobs by Arena

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

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

Funding

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)

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Ai Governance Anonymization Ccpa Claude Code Consumer Protection Cpra Cursor Data Architecture Data Transfer De-Identification Gdpr Generative Ai Intellectual Property Loveable Machine Learning Privacy Replit Retool Vibe Coding

GTM Strategy and Operations Lead

Arena·34 minutes ago

34 minutes agoBay Area Hybrid Full Time Operations Jobs by Arena

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

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

Funding

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)

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

Staff Software Engineer Product

Arena·34 minutes ago

34 minutes agoSalary: 200K - 350KBay Area Hybrid Full Time Fullstack Jobs by Arena

View organization details

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

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

Funding

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)

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Ai Api Backend Caching Data Model Deployment Frontend Architecture Honojs Llm Next.Js Postgres React Shadcn Supabase Tailwind Transaction Isolation Typescript Vercel Ai Sdk Vitest Web Application

Software Engineer ML Infrastructure

Arena·34 minutes ago

34 minutes agoSalary: 150K - 350KBay Area Hybrid Full Time Backend Jobs by Arena

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

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

Funding

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)

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

Software Engineer Marketing and Web

Arena·39 minutes ago

39 minutes agoBay Area Hybrid Full Time Frontend Jobs by Arena

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

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

Funding

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)

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

Software Engineer Full Stack

Arena·39 minutes ago

39 minutes agoBay Area Hybrid Full Time Fullstack Jobs by Arena

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

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

Funding

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

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

Software Engineer Data Infrastructure

Arena·39 minutes ago

39 minutes agoSalary: 150K - 350KBay Area Hybrid Full Time Engineering Jobs by Arena

View organization details

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

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

Funding

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)

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

Software Engineer Anti Abuse

Arena·39 minutes ago

39 minutes agoSalary: 180K - 300KBay Area Hybrid Full Time Cybersecurity Jobs by Arena

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

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

Funding

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)

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Abuse Detection Account Takeover Anti-Fraud Anti-Spam Credential Stuffing Data Analysis Go Integrity Jailbreak Node.Js Prompt Injection Python Rate Limiting Risk Engineering Sql Trust & Safety Typescript

Senior Software Engineer Product

Arena·39 minutes ago

39 minutes agoSalary: 150K - 300KBay Area Hybrid Full Time Fullstack Jobs by Arena

View organization details

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

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

Funding

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

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

Product Solutions Engineer

Arena·45 minutes ago

45 minutes agoSalary: 150K - 250KBay Area Hybrid Full Time Forward Deployed Engineer Jobs by Arena

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

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

Funding

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)

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

Machine Learning Scientist ML Research

Arena·45 minutes ago

45 minutes agoBay Area Hybrid Full Time Research Jobs by Arena

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

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

Funding

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 14 skills

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

Applied AI Engineer

Arena·45 minutes ago

45 minutes agoSalary: 150K - 250KBay Area Hybrid Full Time Forward Deployed Engineer Jobs by Arena

View organization details

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

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

Funding

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 10 skills

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

Member of Design Staff Product

Arena·45 minutes ago

45 minutes agoBay Area Hybrid Full Time Design Jobs by Arena

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

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

Funding

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)

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

Business Development

Arena·45 minutes ago

45 minutes agoBay Area Hybrid Full Time Bizdev Jobs by Arena

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

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

Funding

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 8 skills

Ai Benchmarking Business Development Forecasting Pricing Procurement Rlhf Sales