Founding Senior Engineer - Growth Engine & Data

True; New York (NY); On-site; USD 175,000 - 225,000; Full time

Benefits offered by this job

Visa sponsorship

Job summary

Unknown AI Growth is seeking a seasoned engineer to join as its second engineer and help shape the engineering culture and architecture. You will ship products hands-on, own the growth engine backend, and build integrations with commerce and advertising platforms.

You will mentor engineers while actively contributing to day-to-day development and establish scalable data infrastructure for tracking merchant life cycle events and outcomes.

Qualifications

• 5–8 years of full-stack engineering with backend data infra focus.
• Experience building production-grade LLM-powered or agentic systems with third-party integrations.
• Startup experience at Series A–C or equivalent 0-to-1 building.
• Experience leading or mentoring 1–2 engineers and bringing structure to ambiguity.
• Familiar with Shopify, Meta/TikTok Ads, and Klaviyo integrations.

Responsibilities

• Build data infrastructure to track merchant lifecycle events and outcomes.
• Develop an agentic growth system that automates opportunities and changes.
• Own full-stack growth engine with emphasis on backend systems and infra.
• Create reliable integrations with commerce and advertising platforms.
• Mentor engineers while contributing to daily development.

Skills

Full-stack engineering

Backend systems

Data infrastructure

API integrations

Mentoring engineers

Communication skills

Tools

Shopify

Meta Ads

TikTok Ads

Klaviyo

Job description

Unknown AI Growth is seeking a seasoned engineer to join as its second engineer and help shape the engineering culture and architecture. You will ship products hands-on, own the growth engine backend, and build integrations with commerce and advertising platforms.

You will mentor engineers while actively contributing to day-to-day development and establish scalable data infrastructure for tracking merchant life cycle events and outcomes.