- Job title
- Founding Product Engineer (Frontend)
- Job location
- San Francisco, CA, US
- Job description
- #### **Overview**
Confident AI is building the infrastructure that makes AI trustworthy. Engineering teams spend hours a day inside our platform looking at traces, evals, and test results — the frontend isn't a layer on top of the product. It is the product.
We're hiring a Founding Product Engineer to own that product end-to-end. You'll talk to users, decide what gets built, design the UI yourself, and ship it — from the component layer down to the API routes that power it. No PM writing specs, no designer handing you mocks.
As a founding engineer, the quality bar you set and the interfaces you ship will be the reason engineering teams choose us over the alternatives.
#### **What you'll be doing**
* Own user-facing features from product decision to design to shipped code. You make the design calls — there are no Figma files waiting for you.
* Build data-dense, fast, polished interfaces for traces, evaluation results, and testing workflows — the screens our users live in every day.
* Talk to users, understand their workflows, and turn what you learn into product decisions. You're the engineer in the room closest to the customer.
* Work across the stack. Most of your time is in the frontend, but you'll write the API routes, queries, and server logic your features need without waiting on anyone.
* Architect the frontend to last — the components, state management, and patterns you establish need to hold up as the product and team grow around them.
* Set the standard for product quality and user experience that every engineer we hire after you builds to.
#### **You should be someone who**
* 3+ years building production web applications, ideally at a fast-moving product company or startup.
* Deep proficiency with React, Next.js, TypeScript, and CSS. You don't reach for a UI library because you can't write the styles yourself — you reach for one when it's the right call.
* A genuine eye for design. You notice when spacing is off by 2px, you have opinions on motion and hierarchy, and you can take a feature from idea to polished UI without a designer.
* You understand frontend at scale — rendering performance, state management, data fetching, and architecture that doesn't collapse as the product grows.
* Enough backend fluency to move fast — databases, APIs, caching, auth. You won't be scaling them, but you build against them confidently.
* Fluent with AI coding tools like Claude Code and Cursor as part of your daily workflow. At our size, every engineer operates at a multiplied level.
* You think in user experiences, not components. The question you ask is 'what should this feel like to use,' not 'what props does this take.'
* High-agency and comfortable with ambiguity. We're seed-stage — you identify what matters, make a plan, and ship.
#### **Your work will**
* Be the reason our platform feels like the best product in AI infrastructure, not just the most capable one.
* Own the user experiences that engineering teams interact with for hours every day.
* Set the product engineering bar the rest of the team builds to as we scale from seed to market leader.
#### **By joining us, you will**
* Full ownership: you decide what gets built and how it feels, and you ship it yourself.
* A seat at the table: direct access to the founding team at the stage where every product decision compounds.
* The problem: you'll work on what makes all other AI work trustworthy. The impact ceiling is massive.
