Architect the Auction Engine: Build and scale the high-concurrency bidding and listing systems that power 9-figure annual GMV.
Ship AI-Powered Liquidity: Develop next-gen features that leverage AI to provide instant valuations and upfront liquidity to our consignors and sellers.
Personalize the Hobby: Use data and machine learning to build rich, personalized discovery experiences that match unique collectibles to the right buyers.
Empower Power Users: Design and launch sophisticated management tools for everyone from high-frequency "power sellers" to veteran hobbyists.
Own the Experience: Build end-to-end—from the low-latency backend logic required for live bidding to the sleek, responsive UI where the action happens.
Drive Technical Excellence: Mentor the team and set the standard for code quality, system reliability, and performance.

Requirements

5+ years of experience building and scaling complex applications (Python, Postgres, AWS/Cloud infra)
Deep experience with React, TypeScript, and building high-performance, real-time UIs
Experience working with personalization engines, recommendation systems, or AI/ML integrations is a major plus.
You don’t just build what’s on the ticket; you understand the collector mindset and build features that delight them.
You have a track record of building systems that stay up when the stakes (and the traffic) are highest.

Benefits

A seat at the table to help shape the future of Alt and the alternative asset space
Autonomy and ownership on projects that matter
$100/month work-from-home stipend
$200/month wellness stipend
WeWork office stipend
401(k) retirement benefits
Flexible vacation policy
Generous paid parental leave
Competitive healthcare benefits, including HSA, for you and your dependent(s)

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

PythonPostgresAWSReactTypeScriptmachine learningAIreal-time UIhigh-performance applicationsbidding systems

Soft Skills

mentoringcode qualitysystem reliabilityperformanceunderstanding user mindsetdelivering user delight