Arena
Software Engineer - Marketing & Web
SF Bay Area · On-site · Full-time · Posted Aug 27, 2026
- Experience
- 6+ years of software engineering, with most of that time on production frontend.
About the job
Own and improve Arena’s public web surfaces, including its blog, marketing pages, and AI-model leaderboard interface.
What you'll do
- Own the blog and build and maintain marketing pages using the product design system.
- Improve the public leaderboard frontend, including tables, charts, filters, and user experience.
- Keep public surfaces fast, accessible, and indexable; build CMS models and publishing tools.
What they ask for
- Deep skill in React, TypeScript, Next.js, and CSS, including complex layouts, motion, and responsive design.
- Frontend production experience and enough full-stack skill to work with APIs, routes, and request lifecycles.
- A portfolio or shipped work demonstrating high-craft public pages or data-dense product UI.
- Clear communication and evidence of shipping and iterating on owned work.
Nice to have
- Headless CMS experience, such as Sanity or Contentful.
- Experience with leaderboards, data visualization, SEO, Core Web Vitals, structured data, or animation.
Tools
Next.js, React, TypeScript, Tailwind, ShadCN, Sanity CMS, HonoJS
AI focus
Build public web experiences that help people explore AI-model evaluation results; the role calls for curiosity about AI evaluation and Arena’s mission.
Model-written summary · the original posting is authoritative