[Hiring] Software Engineer @The Job Sauce

Role Description

We're hiring software engineers across Alt's core product: auctions and marketplace experiences, payments and lending, vault operations, and growth. You'll own a meaningful part of the platform, taking problems from product definition and technical design through production and polished UI.

• The challenges span software and real-world outcomes:
  • Resolving hundreds of bids in the closing seconds of an auction
  • Getting sellers paid accurately and quickly
  • Turning a physical collectible into a live digital asset
  • Finding and fixing the step where a new customer drops out
• We are looking for engineers who think like a product owner and build like an engineer.

What You'll Own

• Products and systems, end to end:
  • Take features from an ambiguous customer problem through architecture, implementation, and launch.
  • Own the backend logic and the customer-facing experience it supports, from seller tools and discovery to account activity and submission flows.
• The engineering behind the experience:
  • Build reliable, performant systems for challenges such as real-time bidding, money movement, inventory workflows, and partner integrations.
  • Design for concurrency, data consistency, and the failure paths that show up in production.
• Product outcomes:
  • Work with product, design, and business partners to identify the right problems, make trade-offs, and measure results.
  • Your work might improve auction GMV, seller activation, payout reliability, or the time from an item arriving at the vault to going live.
• New capabilities and better workflows:
  • Build tools, APIs, and automation that help collectors, sellers, partners, and internal teams do more.
  • Know when to build custom and when to integrate an existing solution.
• The quality of what you ship:
  • Own testing, instrumentation, and performance.
  • Use production feedback to catch problems, understand behavior, and keep improving the product after launch.
• The team around you:
  • Raise the bar through thoughtful code reviews, technical documentation, and sharing what you learn.

How You'll Use AI Here

• Build practical AI-powered product features, such as:
  • Instant valuations
  • Personalized discovery
  • Listing enrichment
  • Automated quality checks
• Stand up agents that monitor systems, triage exceptions, and surface actionable findings.
• Use models to build simulators and generate adversarial test cases.
• Put MCP servers over product data and event history for investigation.
• Use Claude Code or Cursor as the default way you build, refactor, migrate, and test.

What You Bring

• Full-stack engineering ability:
  • Experience building and scaling applications with strong backend fundamentals in Python, Postgres, and AWS or comparable infrastructure.
  • Frontend experience with React, React Native, and TypeScript.
• Experience taking on hard problems:
  • You've turned an idea into a working product or owned a technical challenge with meaningful constraints.
• A builder's track record:
  • You've owned features or systems from design to production.
• Product sense:
  • You understand the customer problem and business outcome behind your work.
• An AI-native workflow:
  • You use AI deeply and habitually to prototype, build, and iterate.
• Pragmatism and pace:
  • You know when to build custom and when to integrate.
• Strong collaboration and communication:
  • You write great docs, ask smart questions, and give thoughtful feedback.

Bonus Points for any of the Following

• Experience with high-concurrency bidding, real-time interfaces, personalization, or recommendation systems.
• Experience with payment integrations, double-entry ledgers, reconciliation, or lending systems.
• Experience with logistics, inventory or asset management, imaging workflows, or enterprise APIs.
• Experience with experimentation, product analytics, attribution, or lifecycle infrastructure.
• Startup experience, particularly building new products or systems from the ground up.
• Familiarity with collectibles or alternative asset marketplaces.

Benefits

• We cover 85% of your medical, dental, and vision, and up to 50% for dependents. HSA/FSA available.
• Generous PTO that people actually take.
• Parental leave at full salary.
• $200/month wellness + $100/month home office stipend.
• Free DoorDash Pass membership.
• Remote-first, with WeWork access when you want a room with other humans.
• 401(k).
• Alt Equity to all full-time employees.

Base Salary

$300k - $500k depending on experience.