LMArena · 4 weeks ago
Senior Software Engineer, Full Stack
LMArena is an open platform for evaluating AI models' performance in the real world. They are seeking a Senior Full-Stack Product Engineer to lead the design and development of AI-focused products, owning features end-to-end and advocating for process improvements in development and deployment.
Artificial Intelligence (AI)Information ServicesMachine LearningProduct Research
Responsibilities
Expand data structures and business logic to support new features
Visualize feature performance and usage metrics through internal tooling and dashboards
Own the full feature lifecycle—from technical scoping to deployment and iteration based on insights
Identify and advocate for process improvements in development, testing, and deployment
Experiment with new tools and frameworks to enhance productivity and product capabilities
Qualification
Required
5+ years of experience in software engineering, with a focus on full-stack or backend product development
Deep knowledge in SQL and managing databases at scale
Familiarity with testing practices and tools like Vitest (or similar testing frameworks)
Clear communicator and strong collaborator across design, product, and engineering teams
Preferred
PowerUser Experience with Supabase or Vercel's ai sdk
Benefits
Comprehensive health and wellness benefits, including medical, dental, vision, and additional support programs.
Company
LMArena
LMArena is a web-based platform that evaluates large language models (LLMs) through anonymous, crowd-sourced pairwise comparisons.
Funding
Current Stage
Early StageTotal Funding
$250M2026-01-06Series A· $150M
2025-05-21Seed· $100M
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