Founding Senior Engineer

Job Description

### About the Role

Join an early-stage AI company building growth tools for consumer brands. As the second engineer, you will build core product systems hands-on while shaping the engineering culture and architecture.

### What You'll Do

* Build data infrastructure that tracks merchant lifecycle events and connects actions to outcomes.

* Develop agentic systems that assess growth operations, identify opportunities, and execute improvements automatically.

* Own full-stack development of the growth engine, with a strong focus on backend systems and infrastructure.

* Build and maintain reliable integrations with commerce and advertising platforms, along with orchestration tooling.

* Mentor engineers while contributing directly to daily product development.

### What We're Looking For

* Five to eight years of full-stack engineering experience, with strong backend skills across data infrastructure, event systems, and API integrations.

* Experience building and owning production-grade agentic or LLM-powered systems that integrate with third-party APIs.

* Familiarity with Python, TypeScript, LLMs, and commerce or marketing integrations such as Shopify, Meta Ads, TikTok Ads, or Klaviyo.

* Experience leading or mentoring engineers, and a track record of prioritizing effectively in ambiguous environments.

* Early-stage startup or founding engineer experience, or experience joining a startup during its growth stage. Strong computer science fundamentals are valued.

* Clear communication skills and a consistent record of meaningful tenure.

### Compensation \& Benefits

Base salary: $175,000 to $225,000 annually. Visa sponsorship is available.

### Location

On-site in New York, New York, United States.