Senior Product Builder, Full-Stack

User experience is central to how customers adopt and trust Fireside. You’ll combine product thinking with full-stack engineering to make the whole platform feel consistent and high-quality, down to the smallest detail.

What you’ll do

• Build and ship new product experiences on our AI-native platform, from first idea to production.
• Make the user experience exceptional across every screen and flow.
• Use the product as our customers do, spot what holds it back, and fix it at the source: frontend, APIs, data or AI output.
• Work as part of the engineering team, in close partnership with Business, Product and Design.

What you’ll bring

• You’re a builder at heart and agentic at your core: building with AI agents is simply how you work, every day.
• What you ship doesn’t just work. It makes people say “wow.”
• Senior product engineering experience: strong on the frontend (React, TypeScript), comfortable on the backend (Python).
• Taste, and the words to explain why one version feels better than another.
• An eye for small things: a slow click, a layout that jumps, a label that’s almost right.
• You find problems yourself and take them all the way to done.

How we work

We build agentic-first. AI agents do much of the building, from planning to code to review, while engineers design the work, direct the agents and own the result. We’re a small team with a lot of ownership and a short path from idea to production.

About Fireside

Fireside engages the right consumers at scale through conversational AI. Through its global Audience Network, brands reach verified, relevant consumers in authentic product-use moments, powering always-on conversations that drive action, create content, and uncover insights.