Senior Software Engineer, Vault

Senior Fullstack Engineer

About

Alt is unlocking the value of alternative assets, starting with the $5B trading-card market. We allow collectors to buy, sell, vault, and finance their cards in one place. Our next frontier is real-time pricing at scale—the Alt Value that powers every trade, loan, and product on the platform. We are looking for a Senior Fullstack Engineer to help build Alt Vault into a standalone, $100M+ business, expanding from trading cards into watches, art, and sealed wax, and shipping Vault-as-a-Service to enterprise partners. If you think like an owner, care about operational excellence, and want to build the infrastructure behind the largest alternative asset vault in the world, you’ll thrive here.

Responsibilities

• Automate the vault pipeline: Drastically reduce the time from item received to live on platform — building intake automation, scan orchestration, and quality-control tooling.
• Expand beyond cards: Design and build ingestion, grading, and pricing workflows for non-card asset classes (watches, art, sealed wax) so Alt Values appear the moment items are vaulted.
• Build Vault-as-a-Service: Architect the account infrastructure, billing, and APIs that let enterprise partners programmatically vault, ship, and manage assets at scale.
• Ship the digitization stack: Optimize card imaging, lighting pipelines, and help turn static front/back photos into 360-degree views for digital repackers.
• Own the full stack: Take features from technical design through polished UI — Vault touches real-world operations, and the product surfaces need to be as sharp as the backend.
• Be a multiplier: Level up the growing Vault team through code reviews, technical documentation, and mentorship.

Requirements

• 5+ years of backend experience (Python, Postgres, AWS or similar cloud infrastructure) and frontend experience (React, React Native, JavaScript/TypeScript)
• A track record of owning features or systems from design to production
• Strong collaboration and communication skills — you write great docs, ask smart questions, and give thoughtful feedback
• A user-first mindset with a sharp eye for clean UX and performance
• Bonus: You’re familiar with the collectibles space or alternative asset marketplaces

Salary Range: $140,000-$180,000, plus equity.