Founding Engineer Intern (Full-Stack / AI) — Convertly

Not a sandbox role. You ship to production, into a live product real Shopify brands use to move real money. We hire for taste and ownership, not years on a résumé.

About the company
Convertly runs a Shopify brand's entire creator/ambassador program with AI — the human just approves. Not another influencer-search database: it discovers creators (from a brand's own customers, social search, an opt-in network, and applicants), recruits them, runs campaigns, manages content, gives every creator a shoppable storefront, attributes every sale back to Shopify, and pays commissions — driven by AI agents. "Your creator program, run by AI. You just approve." The product is live and the core loop is proven end-to-end on production. Founded by a technical, repeat founder (ex-Founder/CEO CommerceUp) who built the platform solo.

What you'll work on
AI agents + Ask Convertly (propose → approve → execute → outcome); the money paths (commissions, payouts, billing — correctness is sacred); Shopify integration (webhooks, OAuth, checkout extension, pixel attribution); the Next.js product surfaces; and whatever's on fire.

The stack
TypeScript end to end · Turborepo + pnpm, Node 20 · NestJS backend + focused services · Next.js (App Router) + Tailwind v4 · PostgreSQL/Prisma (Neon) + Redis · Anthropic Claude (shared client, prompt registry, evals in CI) · Railway + Vercel · Shopify Billing/webhooks/extensions.

Who you are
strong, tasteful TypeScript builder who ships end to end and can show it; reads a large codebase and matches its patterns; owns outcomes not tickets; fast, low-ego. Preferred: NestJS/Next.js/Prisma/Shopify or LLM experience, and good judgment on where AI must never be trusted (money math). No CS degree or FAANG needed — show us you build exceptional things.

What you'll get
founding-engineer ownership, direct founder mentorship, serious AI-native architecture, and a real path to full-time (with equity).

How to apply (do all four)
(1) GitHub/portfolio + one project you're proud of;
(2) the most complex thing you built end to end, what was hard;
(3) a bug/decision you got wrong + what you learned;
(4) pick any part of Convertly you can see from outside and name one thing you'd improve, and how.