# Product Engineer

**Company:** [Blacksmith](https://hotfix.jobs/companies/blacksmith)
**Location:** New York, NY
**Role:** Fullstack Engineering
**Salary:** $200k – $300k/yr
**Experience:** 3+ years
**Skills:** React, JavaScript, TypeScript, CSS, HTML, Ui/Ux, Browser Performance, Frontend Frameworks, AI/ML, Prompt Engineering
**Posted:** 2025-04-30

> Builds AI-powered coding agents, debugging tools, and high-performance UIs for CI platform using React and full-stack skills. Requires 3+ years experience, strong CS fundamentals, and onsite work in NYC.

## Job Description

## What you could work on
- Build and evolve Codesmith, our background coding agent — designing the workflows, UI, and infrastructure that let engineers delegate coding tasks to AI and ship faster
- Create tools that help engineers and AI agents debug flaky CI jobs: surfacing patterns in test failures, correlating logs with infrastructure signals, and making root cause analysis fast and intuitive
- Work closely with design to ship polished, high-performance product surfaces across our analytics and observability platform, where engineers go to understand their CI systems
- Prototype and iterate rapidly on AI-powered features — from natural language interfaces to automated fix generation — and own the full stack from prompt design to backend service to UI
- Contribute to the architecture of the agent platform: how we run sandboxed workspaces, and orchestrate agent sessions

## You are a good fit if you
- Have strong CS fundamentals and a deep understanding of **React** and modern frontend development
- Can work closely with design to build polished, high-performance UIs — and aren’t afraid to go deep on browser performance, rendering bottlenecks, or complex component architecture
- Have **3+ years** of software development experience
- Enjoy working in person 5 days a week in NYC
- Enjoy working at a very early-stage startup and are comfortable with ambiguity

## Bonus
- You’ve dabbled in your own side hustles or start-up projects
- You’re comfortable creating new processes and iterating on them quickly

## Compensation and benefits
- Medical, Vision, and Dental insurance
- Competitive base + equity
- 401K match
- Unlimited PTO
- Annual offsite
- Early-exercise stock options
- 12 weeks fully paid parental leave (US)

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**Apply:** https://hotfix.jobs/jobs/71cac76d-07db-446a-b69d-a88b31604747
**Canonical:** https://hotfix.jobs/jobs/71cac76d-07db-446a-b69d-a88b31604747