Senior Fullstack Engineer, ALT
Payments
$140-180k
+ Equity
Management platform for alternative assets
Be an early applicant
Management platform for alternative assets
101-200 employees
Be an early applicant
$140-180k
+ Equity
101-200 employees
Company mission
To unlock the value of alternative assets.
Role
Who you are
- 5+ years of experience with a heavy focus on backend systems (Python, Postgres, AWS) and a proven ability to build modern frontends (React, TypeScript)
- Fintech or Payments experience: You’ve worked with ledgers, payment processors, or lending products and understand the complexities of moving money
- Database Mastery: You are an expert in SQL and relational database design—you know how to write a transaction that won't fail under load
- Fullstack Ownership: A track record of taking a complex financial feature from a technical design doc all the way to a polished UI in production
- Bonus: Experience with distributed systems, credit/risk modeling, or the alternative asset space
- Are Obsessed with Correctness: You understand that in payments, "mostly working" is a failure. You think deeply about idempotency, race conditions, and data consistency
- Think Like a Product Owner: You don't just build a "pay button"; you understand the flow of funds and how to communicate financial status clearly to the user
- Love Building Infrastructure: You’re energized by the challenge of building a ledger or a lending engine from the ground up
- Are Pragmatic: You know when to build a custom internal solution and when to leverage a third-party API to get the job done
- If you have a "measure twice, cut once" mindset for backend integrity but still move with a bias toward action on the frontend, you’ll thrive here
What the job involves
- We’re looking for a Senior Fullstack Engineer who wants to build the financial engine of our platform
- You’re not just building a checkout flow; you’re powering the liquidity that makes this marketplace work
- You’ll join a high-impact team responsible for our custom double-entry ledger, payment provider integrations, and our core lending products
- Engineer Financial Integrity: Build and maintain our custom-built double-entry ledger system to ensure every cent is accounted for across the platform
- Own Lending Infrastructure: Design and scale our lending products—from the logic of credit disbursements to the automated lifecycle of loan management
- Architect Integrations: Design and implement robust integrations with payment gateways and banking partners, ensuring 99.99% reliability and seamless reconciliation
- Own the UX of Money: Create high-trust user interfaces for payments and lending that make complex financial actions feel simple, transparent, and secure
- Balance Rigor with Speed: Make thoughtful trade-offs between rapid feature shipping and the uncompromising correctness required for financial systems
- Be a Multiplier: Level up the team through rigorous code reviews, technical documentation, and mentorship
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.
Share this job
View 8 more jobs at ALT