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About the Role

Alt is growing and seeking a builder to lead the charge on new user acquisition, focusing on the seller submission funnel, buyer search and discovery, and the underlying experimentation infrastructure. This role involves hands-on coding, shipping features, and directly impacting key growth metrics. You will report directly to the CEO and own critical metrics like Submission Volume and Search-to-Bid Conversion.

Responsibilities

Own the seller submission funnel end-to-end in code, from first submission to high-frequency, high-value ones.
Build experiences to activate dormant sellers and increase dealer submission frequency.
Own search, discovery, and buyer conversion, including search quality, card discovery, and browse.
Improve search-to-bid conversion through ranking, filtering, recommendations, and real-time Alt Value pricing context.
Build and own the experimentation harness, including assignment, logging, guardrails, readouts, and decision rules.
Run high-velocity tests across onboarding, activation, search, and submission.
Monitor and address marketplace liquidity and supply-demand balance by analyzing submission volume, listing rate, bid depth, and sell-through.
Build product solutions to fix imbalances by card category, price tier, and seller segment.
Develop a short quarterly plan tied to submission volume, buyer conversion, and time-to-liquidity.
Maintain a weekly record of shipped changes and communicate trade-offs to the CEO.

Requirements

Ship production code, including frontend flow, API, query, and jobs.
Owned a growth surface, marketplace funnel, or PLG motion and demonstrably improved key metrics.
Demonstrate strong data fluency with SQL and Python.
Experience with experimentation, including test design, setting decision rules, and making calls on partial data.
Deep understanding of two-sided marketplace dynamics, including supply and demand and liquidity.
Proven experience building real things with AI, such as agents, skills, MCP servers, connectors, or internal tooling.
Scrappy and high-ownership mentality, with the ability to move without hand-holding and proactively find problems.
Ability to download the app, use the product, and provide a point of view.
Ability to discuss the metric owned today, the last thing shipped, and actual AI usage during recruiter screen.
Ability to deep dive into a past funnel, including baseline, improvements, built features, and experiments during hiring manager interview.
Ability to discuss working in a shared codebase during team interviews.
Ability to present a built and shipped item (repo, PR, URL, tool, agent, skill) and discuss its problem, flaws, and AI usage during build walkthrough.
Ability to discuss first steps, deliberate omissions, and job desire during executive interview.
Provide references from former managers.

Skills

SQL
Python
PostHog
Amplitude
Mixpanel
Statsig
Eppo
AI agents
AI skills
MCP servers
Connectors
Internal tooling

Location

Remote-first

Work Type

Full-time
Remote

Experience Level

5+ years of building experience

Benefits

85% coverage for medical, dental, and vision
Up to 50% coverage for dependents
HSA/FSA available
Flexible PTO
Parental leave at full salary
$200/month wellness stipend
$100/month home office stipend
Free DoorDash membership
WeWork access
401(k)
Alt Equity

About the Company

Alt is unlocking the value of alternative assets, starting with the $5B trading-card market.
Alt allows collectors to buy, sell, vault, and finance their cards in one place.
Alt is backed by leaders at Stripe, Coinbase, Seven Seven Six, and professional athletes like Tom Brady and Giannis Antetokounmpo.
Alt's next frontier is real-time pricing at scale to power every trade, loan, and product on the platform.