Senior Full Stack Engineer, ALT
Auctions
$140-180k
Plus equity
Management platform for alternative assets
Be an early applicant
Management platform for alternative assets
101-200 employees
Be an early applicant
$140-180k
Plus equity
101-200 employees
Company mission
To unlock the value of alternative assets.
Role
Who you are
- If you’re energized by the idea of shipping features that millions of hobbyists and power-users rely on, we want to talk
- Love High-Scale Challenges: You aren’t intimidated by 9-figure transaction volumes or the "thundering herd" of bidders in the final seconds of an auction
- Are an AI Pragmatist: You know how to take LLMs or computer vision models and turn them into practical, user-facing features that solve real business problems
- Think in Systems & UX: You can visualize how a data schema change on the backend will ripple out into the user experience for a power seller
- Have High Agency: You thrive in an environment where you are expected to identify the highest-leverage work and execute on it without a hand-holding manual
- 5+ years of experience building and scaling complex applications (Python, Postgres, AWS/Cloud infra)
- Modern Frontend Mastery: Deep experience with React, TypeScript, and building high-performance, real-time UIs
- Data-Driven Mindset: Experience working with personalization engines, recommendation systems, or AI/ML integrations is a major plus
- Product Instincts: You don’t just build what’s on the ticket; you understand the collector mindset and build features that delight them
- Reliability Under Pressure: You have a track record of building systems that stay up when the stakes (and the traffic) are highest
What the job involves
- We’re looking for a Senior Fullstack Engineer to build the engine behind a marketplace that moves hundreds of millions of dollars in GMV
- Our Auctions team doesn't just "list items"—we build the high-stakes, high-concurrency environments where collectors’ dreams are realized
- In this role, you’ll sit at the intersection of high-scale transaction systems and cutting-edge AI
- You’ll build products that provide upfront liquidity to consignors, personalized discovery for buyers, and professional-grade tools for power sellers
- 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
Our take
Increased interest in alternative assets has resulted in an unexpected boom in the collectables market, as more people are seeking to diversify their portfolios. Alt is a trading and portfolio management platform capitalizing on this exciting new upswing, making it simple to buy and sell investment-grade trading cards.
Initially dealing exclusively with sports cards, the company’s platform has expanded to include other trading card types, ranging from Pokémon to Yu-Gi-Oh! Alt sets itself apart from the competition by offering its users a vast range of attractive options, such as no buyer premiums, cash advances, Alt Vault card storage and borrowing options.
By tackling the three key problems hobbling the uptake of alternative asset investments (liquidity, price transparency, and physical storage) Alt’s success certainly opens the door for further expansion into different assets like art and sneakers, ushering in a new model for alternative asset markets.
Steph
Company Specialist at Welcome to the Jungle
Insights
108% employee growth in 12 months
Company
Funding (2 rounds)
Nov 2021
$75m
SERIES B
Mar 2021
$31m
SERIES A
Total funding: $106m
Company benefits
- Medical, Dental & Vision
- Monthly WFH, health and wellness stipend
- Generous parental and family leave
- Volunteer opportunities
- Learning and development programs
- Unlimited PTO
- WeWork access
Company HQ
SoMa, San Francisco, CA
Leadership
Leore Avidar
(CEO )Also co-founded Lob, a platform that makes direct mail for businesses faster and easier. Was an Asset Management Derivates Trader for Citigroup Global Markets, and part of the Technical Business Development, Startups and Venture Capital services for AWS.
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