Product Engineer — AI-Driven CI Platform (NYC)

Blacksmith; New York (NY); On-site; USD 200,000 - 300,000; Full time

Benefits offered by this job

401K match

Equity

Unlimited PTO

Annual offsite

Early-exercise stock options

Parental leave

Job summary

Blacksmith is hiring in NYC for a frontend-focused software role. You will work on Codesmith, our background coding agent, designing workflows, UI, and the infrastructure that enables engineers to delegate coding tasks to AI and ship faster.

You will build tools to debug flaky CI jobs, surfacing patterns and logs to aid root-cause analysis. The role emphasizes strong CS fundamentals, React expertise, and collaboration with design for high-performance UIs.

Qualifications

• Strong CS fundamentals and deep understanding of React and modern frontend development.
• 3+ years of software development experience.
• Willingness to work in person in NYC 5 days a week.

Responsibilities

• Build and evolve the Codesmith background coding agent and UI workflows.
• Create tools to debug flaky CI jobs and surface root causes.
• Collaborate with design to deliver high-performance analytics and observability surfaces.
• Prototype AI-powered features from prompts to backend and UI.
• Contribute to agent platform architecture and sandboxed workspace orchestration.

Skills

CS fundamentals

React

Frontend development

Job description

Blacksmith is hiring in NYC for a frontend-focused software role. You will work on Codesmith, our background coding agent, designing workflows, UI, and the infrastructure that enables engineers to delegate coding tasks to AI and ship faster.

You will build tools to debug flaky CI jobs, surfacing patterns and logs to aid root-cause analysis. The role emphasizes strong CS fundamentals, React expertise, and collaboration with design for high-performance UIs.