About the job
Alt is revolutionizing the alternative assets landscape, beginning with the $5 billion trading card market. Our platform empowers collectors to buy, sell, vault, and finance their cards seamlessly. We are proud to have the backing of industry leaders such as Stripe, Coinbase, Seven Seven Six, and renowned athletes like Tom Brady and Giannis Antetokounmpo. Our next challenge? Delivering real-time pricing at scale through the Alt Value that drives every transaction, loan, and product on our platform.
We are in search of a Senior Fullstack Engineer to develop the backbone of a marketplace that facilitates hundreds of millions in Gross Merchandise Value (GMV). Our Auctions team doesn’t merely list items; we engineer dynamic, high-stakes environments where collectors' aspirations become reality.
In this pivotal role, you will be positioned at the nexus of large-scale transaction systems and innovative AI technology. You will create products that offer immediate liquidity to consignors, tailored discovery for buyers, and advanced tools for power sellers. If you thrive on delivering features that millions of enthusiasts and power users depend on, we would love to hear from you.
Key Responsibilities:
- Design the Auction Engine: Develop and enhance high-concurrency bidding and listing systems that support 9-figure annual GMV.
- Implement AI-Driven Liquidity: Create next-generation features utilizing AI for instant valuations and upfront liquidity for consignors and sellers.
- Customize the Hobby Experience: Leverage data and machine learning to create personalized discovery experiences that connect unique collectibles with suitable buyers.
- Equip Power Users: Design and launch sophisticated management tools catering to both high-frequency power sellers and seasoned hobbyists.
- Own the User Experience: Deliver comprehensive solutions—from low-latency backend logic essential for live bidding to an engaging, responsive UI where the excitement unfolds.
- Pursue Technical Excellence: Mentor your peers and establish benchmarks for code quality, system dependability, and performance.
This Role is Ideal for You If You...
- Embrace High-Scale Challenges: You are undaunted by 9-figure transaction volumes or the adrenaline of last-second bidders in an auction.
- Are an AI Pragmatist: You possess the ability to effectively implement large language models (LLMs) or comparable technologies in practical applications.

