Full-Stack Engineer for AI Platform — Build & Ship Impact

Arena Intelligence, Inc.; San Francisco (CA); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Health benefits

Equity

Cutting-edge AI projects

Transparent culture

Job summary

Arena Intelligence is seeking a Full Stack Software Engineer to own features end-to-end across the platform — from understanding the problem to designing, building, shipping, and measuring impact. This hands-on IC role focuses on production-ready systems and iterating based on real user feedback.

You will work with ML researchers to turn research services into customer-ready capabilities, collaborating across design, product, and engineering to determine what to build and how to ship it

Qualifications

• 3+ years of experience in software engineering, with focus on enterprise or developer-facing product development.
• Experience building user-facing web applications spanning frontend, backend/API, and database.
• Clear, concise communication — you explain technical decisions well and share context.
• Evidence of shipping and iterating — describe the full arc of a feature you owned.
• A product engineering identity — care about real user impact of what you build.
• Genuine curiosity about AI evaluation and Arena's mission.

Responsibilities

• Own features from technical scoping through deployment and post-launch iteration — ensure they work end-to-end.
• Design and extend schemas, APIs, and business logic to support new product capabilities.
• Ship high-quality product code across the stack.
• Incorporate real user feedback from data, direct user contact, or product instincts to improve shipped features.
• Collaborate with ML researchers to productionize research services for product development.
• Coordinate with design, product, and engineering to decide what to build, not just how.
• Identify and advocate for improvements to development, testing, and deployment practices.

Skills

Software engineering

Frontend development

Backend / API

Full stack

Communication

Tools

NextJS

React

TypeScript

Tailwind

ShadCN

HonoJS

Postgres

Vitest

Supabase

Vercel AI SDK

Job description

Arena Intelligence is seeking a Full Stack Software Engineer to own features end-to-end across the platform — from understanding the problem to designing, building, shipping, and measuring impact. This hands-on IC role focuses on production-ready systems and iterating based on real user feedback.

You will work with ML researchers to turn research services into customer-ready capabilities, collaborating across design, product, and engineering to determine what to build and how to ship it