# Product Engineer

**Company:** [Cognition](https://hotfix.jobs/companies/cognition)
**Location:** San Francisco, CA, New York, NY
**Role:** Fullstack Engineering
**Skills:** Python, TypeScript, React, Full-Stack, Developer Tools, Ides, AI Agents, UX Design
**Posted:** 2026-05-11

> Builds end-to-end features for AI software agents across IDE, web, and CLI, owning product decisions, user interactions, and core agent infrastructure like Devin. Requires full-stack expertise in Python, TypeScript, React and strong developer empathy.

## Job Description

## What You'll Accomplish
- **Ship Product and Talk to Users**: Own features end to end, from the first line of code to the conversation with the developer who uses it. User feedback directly shapes what you build next.
- **Build Performant and Beautiful Experiences**: Craft interfaces across our IDE, web, and CLI surfaces that feel fast, focused, and effortless. Quality is not a final pass; it's built into how you work.
- **Set the Standard for Agent UX**: Define interaction patterns for how developers work alongside AI agents. This is new territory with no established playbook. You'll create the conventions that others will follow.
- **Build the Agent and Agent Harness**: Work directly on Devin and the core agent infrastructure that powers it. This means building the agent loop, tool use, and the harness that lets Devin operate reliably across real-world tasks.
- **Punch Through Technical Walls**: The best developer experiences often require solving hard engineering problems. You won't hand those off; you'll solve them.
- **Move Fast Across Surfaces**: Ship across our IDE, web, and CLI products. Context-switch quickly and maintain a high quality bar across all of them simultaneously.

## Exceptional Candidates Have Demonstrated
- **Full-stack engineering depth**: Strong engineering skills with a natural instinct for product quality; you notice when something is off and you fix it.
- **Developer empathy**: Genuine understanding of developer workflows, frustrations, and what delightful tooling actually feels like.
- **Python, TypeScript, and React proficiency**: Experience with all three in complex, production-grade products.
- **Independent product judgment**: The ability to make sound product decisions without needing extensive process or sign-off.
- **UX and Design Obsession**: You sweat the details others overlook: micro-interactions, transitions, response times, empty states, because you know that magical product experiences are built from hundreds of small decisions done right.
- **Developer tools experience**: Experience building developer tools, IDEs, or technical products where the user is an engineer is a strong plus.
- **Relevant industry experience**: Prior experience at a frontier AI lab, applied AI company, or developer tools company; you know what good looks like in this category.
- **Degree from a top-tier university**: BS, MS, or equivalent in Computer Science, Mathematics, Engineering, or a related technical discipline from a highly selective program.

## Similar roles

- [Product Engineer, Talent Experience](https://hotfix.jobs/jobs/8535ab0e-ea3b-4e00-b60c-fd3b14dd2e38) - Mercor - San Francisco, CA - $130k – $500k/yr
- [Fullstack Engineer, Assesment](https://hotfix.jobs/jobs/7aa8c9a4-508e-4c03-b20a-9e118f2aee73) - Mercor - San Francisco, CA - $130k – $500k/yr
- [Software Engineer III](https://hotfix.jobs/jobs/49fb9acc-7d2e-4575-b0f3-fce0528b7059) - ZoomInfo - Bethesda, MD - $112k – $176k/yr
- [Software Engineer 2](https://hotfix.jobs/jobs/7cc5767e-0d38-4fbc-8292-9905aab9ffbc) - Rula - Remote - $145k – $171k/yr
- [Software Engineer, Codex](https://hotfix.jobs/jobs/d8f7be4c-5dad-4b2e-a430-c399bdb32cb7) - OpenAI - San Francisco, CA - $230k – $385k/yr

**Apply:** https://hotfix.jobs/jobs/7b2fb508-2c23-432d-9515-8a7b69a8efc9
**Canonical:** https://hotfix.jobs/jobs/7b2fb508-2c23-432d-9515-8a7b69a8efc9