Product Builder, Growth
About The Position
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. This role leads the charge on new user count: how many collectors land on Alt, how many make a first submission or a first bid, and how many come back without being asked. That number is the job. Everything else in this description is downstream of it. This is a builder seat, not a product management seat. You own the seller submission funnel, buyer search and discovery, and the experimentation infrastructure underneath both, and you own them the whole way: you find the drop-off, you write the code, you ship it behind a flag, you read the result, you keep it or you kill it. What this role is not: writing PRDs for someone else to implement, running roadmap ritual, managing a pod, or translating between engineering and the business. If that's the shape of your last five years, this probably isn't the right fit, and we'd rather say so up front than waste your time. What it is: pulling the funnel yourself in SQL on Monday, shipping the onboarding change on Tuesday, standing up the experiment harness that makes Wednesday's test trustworthy, and putting a model behind dealer reactivation instead of a campaign. You report directly to the CEO. If you want a CEO in the build with you, this is that. If you want distance from the top, it isn't. The metrics you own: Submission Volume (weekly, by seller segment) and Search-to-Bid Conversion. Supporting KPIs: Snap to Sell activation rate on first submission, seller reactivation rate among dormant sellers, daily active search query volume, listing rate (vaulted inventory live on marketplace), ship-and-decide velocity (changes shipped and tests called per week), and dealer segment submission frequency and GMV. The people who are great at this have run growth inside a system that was already working, not just inside a roadmap someone else set. They ship their own code. And they are participants in this market: they buy, they sell, and they have a view on where liquidity actually goes.
Requirements
- You ship production code. Not "technical." Not "I can read code." You open the pull request, you take the review, you own the on-call consequence. Full-stack enough to move through a growth surface without a handoff: the frontend flow, the API, the query, the job.
- You've owned a growth surface, marketplace funnel, or PLG motion and moved the number on it. Roughly 5+ years of building, but we're reading the work, not the years.
- You own a number today and can name it, its baseline, and where you took it, on the first ask.
- Strong data fluency. SQL and Python, plus PostHog, Amplitude, Mixpanel, Statsig, Eppo, or similar. You pull your own numbers and you've built the instrumentation behind them.
- Experimentation in your hands, not on your résumé. You've designed the test, set the decision rule before it ran, and made the call on partial data.
- Deep understanding of two-sided marketplace dynamics. Supply and demand, liquidity, and what happens to one side when you push the other.
- You've built real things with AI, not just used it. Agents, skills, MCP servers, connectors, internal tooling people depend on.
- Scrappy and high-ownership. You communicate with precision, you move without hand-holding, and you go find the problem rather than waiting for the brief.
Nice To Haves
- Participants in this market: they buy, they sell, and they have a view on where liquidity actually goes.
Responsibilities
- Own the submission funnel, end to end, in code. From a seller's first submission to a high-frequency, high-value one. Find the drop-offs across onboarding, Snap to Sell, quote acceptance, vault intake, and resubmission, then ship the fixes yourself. Build the experiences that activate dormant sellers and raise dealer submission frequency without anyone having to send a message.
- Own search, discovery, and buyer conversion. Move search-to-bid through ranking, filtering, recommendations, and real-time Alt Value pricing context. You'll be in the ranking code, not describing it. Right card, right buyer, right moment.
- Build the experimentation harness. Assignment, exposure logging, guardrails, readouts, and decision rules, wired to the warehouse and fast enough that a test is a Tuesday decision. Then run high-velocity tests on it across onboarding, activation, search, and submission, and leave behind a compounding library of what we learned.
- Own marketplace liquidity and supply-demand balance. Watch submission volume, listing rate, bid depth, and sell-through. Find the imbalances by card category, price tier, and seller segment, then build the product that fixes them. Use Alt Value as a growth lever: surface the market signal that makes someone act.
- Own the bets and the trade-offs. A short quarterly plan tied to submission volume, buyer conversion, and time-to-liquidity, and a weekly record of what actually shipped. Work shoulder to shoulder with Engineering, Design, Data, Lifecycle, and Ops. Operate on the funnel detail and the experiment result, and on which bets we're making and why. Communicate the trade-offs to the CEO plainly.
Benefits
- We cover 85% of your medical, dental, and vision, and up to 50% for dependents. HSA/FSA available
- Flexible PTO that people actually take
- Parental leave at full salary
- $200/month wellness + $100/month home office stipend
- Free DoorDash membership, because dinner shouldn't be a decision
- Remote-first (for most positions), with WeWork access when you want a room with other humans
- 401(k)
- Alt Equity to all full-time employees
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
No Education Listed
