LMArena is seeking an experienced Senior Frontend Product Engineer to lead the design and development of intuitive, AI-focused user experiences across their platform. The ideal candidate combines strong frontend craft with backend thinking and is excited to shape how people interact with cutting-edge AI models.
Requirements
- 5+ years of experience in software engineering, with a focus on full-stack or frontend product development
- Deep experience building accessible, responsive React/Next.js interfaces in production
- Strong CSS fundamentals and familiarity with utility-first frameworks like Tailwind
- Experience working with modern component systems such as ShadCN or similar design systems
- Comfortable building and integrating backend APIs (bonus if you've worked with HonoJS or lightweight frameworks)
- Proficient with relational databases such as Postgres, and how to extend schemas to support new features
- Familiarity with testing practices and tools like Vitest (or similar testing frameworks)
- Experience integrating analytics tools and using product metrics to guide iteration
- Clear communicator and strong collaborator across design, product, and engineering teams
Benefits
- Competitive salary
- Meaningful equity
- Comprehensive healthcare coverage (medical, dental, vision)
- The opportunity to work on cutting-edge AI with a small, mission-driven team
- A culture that values transparency, trust, and community impact