Software Engineer, Marketing & Web

Arena
San Francisco
Workplace: HybridFull timeFunction: Software EngineeringExperience: 6+ yearsSkills: ["Communication","Craftsmanship","Curiosity","Iteration","Collaboration"]

Own Arena’s public web surfaces, building and maintaining the blog, marketing pages, and the leaderboard UI used to evaluate frontier AI models. You’ll ship end-to-end experiences with Next.js, React, TypeScript, Tailwind, and Sanity CMS—improving performance, accessibility, SEO, structured data, and i18n. You’ll also create CMS models and internal publishing tools so marketing and content can move quickly without engineering bottlenecks.

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FursaFursa
Arena
Arena
2 days ago

Software Engineer, Marketing & Web

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Source: Company careers pageValidated by: Fursa AI
Last checked: 5 hours agoStatus: Live

Job Summary

Own Arena’s public web surfaces, building and maintaining the blog, marketing pages, and the leaderboard UI used to evaluate frontier AI models. You’ll ship end-to-end experiences with Next.js, React, TypeScript, Tailwind, and Sanity CMS—improving performance, accessibility, SEO, structured data, and i18n. You’ll also create CMS models and internal publishing tools so marketing and content can move quickly without engineering bottlenecks.
Location: San Francisco
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Own the Arena blog end-to-end, including Next.js, Sanity CMS, content models, publishing workflows, and templates.
  • •Build and maintain marketing pages in the same design system as the product across product, features, resources, careers, and campaign pages.
  • •Improve the public leaderboard frontend with tables, charts, filters, and UX for readable evaluation data.
  • •Keep surfaces fast, accessible, indexable, and measurable via Core Web Vitals, SEO, structured data, and i18n.
  • •Build CMS models and internal publishing tools to enable marketing and content to ship without waiting on engineering.

Pay and Benefits

Perks:Health InsuranceDentalVision

Key Requirements

  • •6+ years of software engineering, with most time on production frontend work.
  • •Deep skill in React, TypeScript, Next.js, and CSS for complex responsive layouts and motion.
  • •A portfolio or shipped work showing high-craft public pages like marketing sites, content sites, or data-dense product UIs.
  • •Enough full-stack skill to read APIs, extend routes, and follow the request lifecycle in a product codebase.
  • •Clear communication and evidence of shipping and iterating on pages or surfaces you owned.
Experience:6+ yearsAIFrontendWebSaaS
Skills:CommunicationCraftsmanshipCuriosityIterationCollaboration
Tech Stack:Next.jsReactTypeScriptTailwindShadCNSanity CMSHonoJSCSSGSAPJSON-LDI18nSEO

Company Brief

Arena
LMArena operates a community-driven platform for evaluating and benchmarking large language models via crowdsourced pairwise comparisons and leaderboards, used by researchers and AI labs to measure real-world model performance. ([linkedin.com](https://www.linkedin.com/company/lmarena?utm_source=openai))
Industry: Developer Tools
Company Size: Small (11 to 50 employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series A
Headquarters: San Francisco, United States
Founded: 2025
WebsiteLinkedIn