Software Engineer, Marketing & Web

Arena is looking for a frontend-specialized Software Engineer to own the company's public web surfaces: the blog, marketing pages, and the leaderboard UI. The role involves building with Next.js, React, TypeScript, and Sanity CMS, ensuring performance, accessibility, and SEO. The team is mission-driven, focused on AI evaluation, and offers a collaborative culture.

• Own the Arena blog end-to-end — Next.js, Sanity CMS, content models, publishing workflows, and the templates authors use every week.
• 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 readable at a glance.
• Keep these surfaces fast, accessible, and indexable — Core Web Vitals, SEO, structured data, and the i18n we already run.
• Build CMS models and internal publishing tools so marketing and content can ship without waiting on engineering for every copy change.

• 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 with precision.
• 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.

• Competitive compensation and equity aligned to the markets where our team members are based.
• 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.