Backed by First Round Capital.
About the role
You are our founding Growth Engineer, and you turn today's experiments into instrumented, repeatable systems across both sides of the marketplace — sellers and buyers. Attribution that we trust. A submission funnel we can measure step by step. Lifecycle messaging that is an owned system rather than a stack of per-campaign setups. Channels we can scale on purpose instead of by accident.
What they're looking for
- 5+ years of engineering experience with strong backend (Python, Postgres, AWS or similar) and frontend (React, React Native, JavaScript/TypeScript) chops. This seat is genuinely both
- A track record of owning growth systems or product features from design to production. Design doc to shipped, not a ticket you closed
- Fluency with growth tooling and analytics — experimentation and A/B frameworks, product analytics (PostHog, Amplitude, or similar), attribution (AppsFlyer or similar), and lifecycle platforms
- A sharp instinct for funnels and instrumentation , and the patience to turn messy data into clean, trustworthy signal. Most of the first six months is this
- Comfort owning a north-star metric. You've held a number publicly, weekly, and you know what it feels like when it doesn't move
- Strong collaboration and communication. You write great docs, ask smart questions, and give thoughtful feedback
More about this role
Alt is unlocking the value of alternative assets, starting with the $5 B trading-card market. We let collectors buy, sell, vault, and finance their cards in one place and we are backed by leaders at Stripe, Coinbase, Seven Seven Six, and pro athletes like Tom Brady and Giannis Antetokounmpo. Our next frontier is real-time pricing at scale—the Alt Value that powers every trade, loan, and product on the platform.
You are our founding Growth Engineer, and you turn today's experiments into instrumented, repeatable systems across both sides of the marketplace — sellers and buyers. Attribution that we trust. A submission funnel we can measure step by step. Lifecycle messaging that is an owned system rather than a stack of per-campaign setups. Channels we can scale on purpose instead of by accident.
The metric you own: unique submissions. It is our north star, the whole company watches it, and you'll be held to it with the same weekly-reported discipline we hold marketing to.
It's a technical owner who understands growth levers and can build them — thinks like a PM, builds like an engineer. You'll partner directly with our founder and our Head of Marketing, own the funnel end to end, and...
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