- Job type
- Full-time
- Work mode
- On-site
- Level
- Senior
- Department
- Engineering
- Experience
- 6+ years experience
- Posted
- Aug 27, 2026
About the role
About the Role
We're looking for a frontend-specialized Software Engineer to own Arena's public web surfaces: the blog, marketing pages, and the leaderboard UI that millions of people use to judge how AI models perform.
You'll
- Own the Arena blog end-to-end
- Build and maintain marketing pages (product, features, resources, careers, campaign pages) in the same design system as the product
- Improve the public leaderboard frontend: tables, charts, filters, and the UX that makes evaluation data accessible
- Keep these surfaces fast, accessible, and indexable
- Build CMS models and internal publishing tools so marketing and content can ship without waiting on engineering
You'll Have
- 6+ years of software engineering, with most of that time on production frontend
- A portfolio or shipped work that shows high-craft public pages: marketing sites, content sites, or data-dense product UI
- Deep skill in React, TypeScript, Next.js, and CSS — you can implement complex layouts, motion, and responsive design
- Enough full-stack skill to work in a product codebase. You can read an API, extend a route, and follow the request lifecycle
- Clear communication with designers, marketers, and engineers — you can defend a tradeoff and explain it to a non-engineer
- Evidence of shipping and iterating. You can describe a page or surface you owned, what happened after launch, and what you changed
- Genuine curiosity about AI evaluation and Arena's mission. You have looked at arena.ai http://arena.ai and can say why this public surface matters
Bonus
- Experience with a headless CMS (Sanity, Contentful, or similar): content modeling, structured data, and the operational side of a live site
- Leaderboards, data tables, or visualization work (charts, ranking UIs, dense filterable tables)
- SEO, Core Web Vitals, structured data / JSON-LD
- Animation (Motion, GSAP, or CSS) used with restraint
- You've shipped without a dedicated PM — took a brief from marketing or design and drove it to production
Our Tech Stack
- Next.js
- React + TypeScript
- Tailwind + ShadCN
- Sanity CMS (blog and marketing pages)
- HonoJS
What we offer
- We offer competitive compensation and equity aligned to the markets where our team members are based. The base salary range will depend on the candidate’s permanent work location.
- Comprehensive health and wellness benefits, including medical, dental, vision, and additional support programs.
- 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 build the space where anyone can explore and help shape the future of AI.