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Alt.xyz

Platform for trading card investment services

Product Builder - Vault

Full-Stack EngineeringConfirmed live in the last 24 hours
Full-timeNew York, NY, USA

About the Job

Requirements

  • Ship production code and take ownership of pull requests, code reviews, and production consequences.
  • Have roughly 5+ years of experience building operational systems with real service-level agreements and unit costs, and have improved measures such as throughput, cost per unit, rework, or capacity utilization.
  • Own a measurable performance metric and be able to identify its baseline and the improvement achieved.
  • Use SQL and Python to analyze station-level data and build the instrumentation needed to measure operations.
  • Have a track record of turning messy real-world processes into software used by operators and resilient under difficult operating conditions.
  • Be willing to travel occasionally to the vault.
  • Have built practical AI systems such as agents, skills, Model Context Protocol servers, connectors, or internal tools used by a team.
  • Work with high ownership, communicate precisely, act independently, and identify bottlenecks proactively.

Responsibilities

  • Own the end-to-end lifecycle in code, including receiving and ingest, processing and routing, exception handling and quality control, outtake, and customer handoff.
  • Define measurable service-level agreements at each lifecycle stage, instrument and enforce them, and systematically identify and remove bottlenecks.
  • Build station-level data systems to identify where the 90th-percentile processing time is spent.
  • Build Vault tooling for queue management, prioritization, labeling, service-level tracking, exception classification, and enforcement, replacing the existing Retool-based tooling with durable software.
  • Develop operational software using Python, PostgreSQL, Amazon Web Services, React, and TypeScript.
  • Own international shipping and logistics processes, including customs, insurance, labeling, and carrier integrations; connect them to service-level and liquidity metrics and automate paperwork handling.
  • Improve inventory activation by identifying where activation stalls across item tiers, seller segments, and stations, and build products that shorten the time from vault arrival to marketplace listing.
  • Partner with Pricing, Auctions, Customer Experience, and Risk to get vaulted inventory listed and monetized quickly.
  • Own quality, error rates, rework, and exception classification, and build software controls to identify and prevent mishandling of high-value items.
  • Create a short quarterly plan tied to time-to-liquidity, cost per item, and activation rate, and maintain a weekly record of shipped work.
  • Work closely with Operations, Engineering, Pricing, Marketplace, and Customer Experience; explore Vault-as-a-Service without distracting from core execution; and communicate trade-offs to the CEO.
  • Build an AI agent that classifies intake anomalies, retrieves item history, and recommends actions to vault technicians.
  • Use document models on cross-border paperwork, including customs forms, declared values, carrier labels, and insurance schedules.
  • Prototype and build the replacement for Retool-based queue and service-level tools, test an initial working version with an operations lead, and develop durable software from it.
  • Build a Model Context Protocol server over Vault operations data to answer operational questions using station-level data.
  • Use AI agents to turn operational know-how into documented, enforceable runbooks.
  • Use vision models in intake quality control to flag condition and item-matching discrepancies at receiving.
  • Use Claude Code or Cursor as tools in the software migration workflow.
  • Ship production code from the early weeks of the role and contribute to the team's shared codebase and code reviews.
  • Reduce median and 90th-percentile time-to-liquidity, establish and meet instrumented service-level agreements across ingest, processing, and outtake, and provide leadership with a weekly operating dashboard based on live station data.
  • Reduce manual handoffs by 30–50%, replace informal exception handling with classified queues, and scale volume without increasing headcount linearly.

About the Company

Alt.xyz

Platform for trading card investment services

Alt is a platform for researching, buying, selling, and borrowing trading cards, offering real-time pricing data, portfolio tracking, and a secure vault for asset storage. The platform leverages technologies such as instant card valuation and market trend analysis to enable users to maximize their card sales and make informed investment decisions.

Company size
51-200
Company stage
Series B
Total funding
$404.4M
Headquarters
San Francisco, California
Founded
2020

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