Full-Stack Engineer: Build & Ship AI Features

Arena Intelligence, Inc.; United States; On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Health benefits

Equity

Growth opportunities

Job summary

Arena Intelligence is seeking a Full Stack Software Engineer to own features end-to-end across Arena’s platform—from understanding the problem, through designing and building the solution, to shipping it and measuring impact. This hands-on IC role writes code daily and shapes how users interact with cutting-edge AI.

You’ll collaborate with ML researchers and cross-functional teams to design schemas, APIs, and business logic, ship high-quality code, and iterate based on data and user feedback.

Qualifications

• 3+ years of software engineering experience, with 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, distinguish your work from the team’s, and proactively share context.
• Evidence of shipping and iterating — you can describe the full arc of a feature you owned: problem, solution, code, what happened after launch, and what you’d change now.
• A product engineering identity — you care about whether the thing you built actually worked for users, not just whether the code was clean.
• Genuine curiosity about AI evaluation and Arena’s mission — you’ve looked at the product and can articulate why this domain matters to you.

Responsibilities

• Own features from technical scoping through deployment and post-launch iteration — not just build them, but make sure they work
• 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 your own product instincts — to improve what you’ve shipped
• Work closely with ML researchers to turn research services to production, making them consumable for product development
• Collaborate across design, product, and engineering to figure out what to build, not just how
• Identify and advocate for improvements to development, testing, and deployment practices

Skills

Full stack

Frontend

API design

Shipping features

Communication

AI curiosity

Job description

Arena Intelligence is seeking a Full Stack Software Engineer to own features end-to-end across Arena’s platform—from understanding the problem, through designing and building the solution, to shipping it and measuring impact. This hands-on IC role writes code daily and shapes how users interact with cutting-edge AI.

You’ll collaborate with ML researchers and cross-functional teams to design schemas, APIs, and business logic, ship high-quality code, and iterate based on data and user feedback.