# Founding Product Engineer (Frontend) at Confident AI

- Company: Confident AI (YC W25)
- What the company does: The LLM Eval and Observability Platform for AI Quality. Backed by Y Combinator.
- Company website: https://confident-ai.com
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA, US
- Work setup: On-site
- Posted: 2026-06-12
- Apply by: 2026-10-08
- Apply: https://www.ycombinator.com/companies/confident-ai/jobs/pltgckw-founding-product-engineer-frontend
- Page: https://www.1752.vc/careers/jobs/confident-ai-founding-product-engineer-frontend/

## About the role

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.

## What they're looking for

- 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

Tags: Engineering