Software Engineer - Full Stack

The role

A Full Stack Software Engineer will own features end-to-end from technical scoping to deployment and post-launch iteration. This role involves designing schemas, APIs, and business logic to support product capabilities on Arena's platform.

What you will do

• Own features from technical scoping through deployment and post-launch iteration
• Design and extend schemas, APIs, and business logic
• Ship high-quality product code across the stack
• Incorporate real user feedback to improve shipped products
• Work closely with ML researchers to turn research services to production
• Collaborate across design, product, and engineering to figure out what to build
• Identify and advocate for improvements to development, testing, and deployment practices

Required qualifications

• 3+ years of experience in software engineering, with a focus on enterprise or developer-facing product development
• Experience building user-facing web applications spanning frontend, backend/API, and database
• Clear, concise communication
• Evidence of shipping and iterating
• A product engineering identity
• Genuine curiosity about AI evaluation and Arena's mission

Nice to have

• Familiarity with our stack: NextJS, React, TypeScript, Tailwind, ShadCN, HonoJS, Postgres, Vitest
• Experience with Supabase or Vercel's AI SDK
• You've shipped without PM or design support

Benefits

• Competitive compensation aligned to the markets where 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

About the company

Arena is the platform for evaluating how AI models perform in the real world. Founded by researchers from UC Berkeley's SkyLab, the company builds the foundation for understanding, shaping, and benefiting from AI.