Senior Founding Engineer - Agentic AI & Growth Infrastructure

Initi8 Recruitment • New York City Metropolitan Area

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AI Summary

Senior engineer role at a VC-backed NYC startup building an agentic AI platform for consumer brand growth. Responsible for building data infrastructure, self-optimizing growth loops, and full-stack integrations with Shopify, Meta, and TikTok. Requires 3+ years of full-stack experience with a strong backend focus, production LLM/agentic systems experience, and mentoring capabilities.

Key Highlights

Engineer #2 at a top-tier VC-backed startup doubling its customer base monthly

Build agentic, self-optimizing AI systems that execute growth operations automatically

1%+ equity and direct reporting line to the CEO

Hybrid role in New York City (4 days/week in office)

Key Responsibilities

Build the data infrastructure that tracks every event in each merchant's lifecycle to enable platform learning

Develop an agentic, self-optimising growth loop that assesses merchant operations and executes changes automatically

Own the full-stack engineering behind the growth engine with a heavy backend and infrastructure focus

Ship reliable integrations with Shopify, Meta, and TikTok, plus orchestration tooling

Mentor the founding engineer while staying hands-on with coding every day

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Technical Skills Required

Python TypeScript LLM Integration

Benefits & Perks

1%+ equity

Salary range $175,000–$225,000

Visa transfer support (OPT, H1B)

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Nice to Have

Founding-engineer or 0→1 experience

Commerce or martech API experience

Job Description

Senior Founding Engineer | Build Agentic AI That Grows Consumer Brands | NYC Start-Up

The Opportunity

This is engineer #2 at a start-up backed by a top-tier Silicon Valley VC, building an AI platform that runs the growth operations of consumer brands end to end.

The company is doubling its customer base every month, and you'll be the senior engineer who builds the systems behind that growth.

You'll be a player-coach, shipping hands-on every day while setting the engineering culture and architecture and mentoring a talented early-career founding engineer.

What You'll Do

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