Founding Senior Engineer

ABOUT THE ROLE Join an early-stage AI company building a growth platform for consumer brands. As the second engineer, you will build core product and infrastructure while helping shape the engineering culture and architecture. WHAT YOU'LL DO - Build data infrastructure that tracks merchant lifecycle events and connects actions to outcomes. - Develop an agentic growth system that assesses operations, identifies opportunities, and executes changes automatically. - Own full-stack development of the growth engine, with a strong focus on backend systems and infrastructure. - Build reliable integrations with commerce and advertising platforms, along with orchestration tooling. - Mentor an engineer while remaining hands-on in daily product development. WHAT WE'RE LOOKING FOR - Five to eight years of full-stack engineering experience, with a strong backend focus. - Experience building production-grade LLM or agentic systems with end-to-end ownership and third-party API integrations. - Strong skills in data infrastructure, event systems, and API integrations. - Experience with Python, TypeScript, LLMs, and commerce or marketing tools such as Shopify, advertising APIs, or email platforms. - Experience leading or mentoring engineers and bringing structure to ambiguous work. - Early-stage startup or founding engineering experience, or experience helping a startup grow through an early funding stage. - Strong communication skills and a record of sustained contributions in previous roles. COMPENSATION & BENEFITS Base salary is $175,000 to $225,000 annually. Visa sponsorship is available. LOCATION On-site in New York, New York.