Alt is unlocking the value of alternative assets, starting with the $5 B trading-card market. We let collectors buy, sell, vault, and finance their cards in one place and we are backed by leaders at Stripe, Coinbase, Seven Seven Six, and pro athletes like Tom Brady and Giannis Antetokounmpo. Our next frontier is real-time pricing at scale—the Alt Value that powers every trade, loan, and product on the platform.

The Role

We’re looking for a Senior Fullstack Engineer who wants to build category-defining products — not just punch tickets. You’ll join a high-impact, cross-functional team focused on shipping end-to-end features that shape how people value, trade, and manage alternative assets. You’ll write clean code, make smart trade-offs, and work closely with product and design to solve real user problems (fast). If you have strong product instincts, full ownership mentality, and a bias toward action, you’ll thrive here.

What You’ll Do Here

Own the work. Design, build, and launch features from end to end — from backend services to frontend UIs and everything in between.
Prioritize impact. Identify areas of highest leverage and dive in. You’ll make thoughtful trade-offs between speed, quality, and scope to ship the right solutions quickly.
Think like a product owner. Collaborate with product managers, designers, and stakeholders to turn ambiguous ideas into working products that customers love.
Build for scale. Ensure our systems are performant, reliable, and maintainable as we grow.
Be a multiplier. Help level up your teammates through code reviews, knowledge sharing, and technical mentorship.

This is a perfect fit if you…

Think in terms of users, not just tickets. You have strong product instincts and care deeply about creating intuitive, high-impact features.
Love building. You enjoy jumping into unfamiliar areas of the stack and have a high agency mindset.
Are pragmatic. You know when to refactor and when to move fast — and you make those trade-offs with intention.
Are energized by ambiguity. You thrive in early-stage environments and like figuring things out as you go.

What You Bring To The Table

5+ years of backend experience (Python, Postgres, AWS or similar cloud infrastructure) and frontend experience (React, React Native, JavaScript/TypeScript)
A track record of owning features or systems from design to production
Strong collaboration and communication skills — you write great docs, ask smart questions, and give thoughtful feedback
A user-first mindset with a sharp eye for clean UX and performance
Bonus: You’re familiar with the collectibles space or alternative asset marketplaces

What You’ll Get From Us

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)

Base salary range: $170,000–$195,000, plus equity. Offers may vary based on experience, location, and other factors.