Senior Engineer, Full Stack
Core
Build shared surfaces, APIs, and front-end systems to unify separate collector experiences (Live, Marketplace, Instant Rips, Collections, Topps) into a seamless journey for millions of users.
Role type
Senior Full Stack Engineer (Unified Experience)
Builds
Shared APIs, front-end components, and unified collector interfaces for mobile and web.
Domain
Sports e-commerce, digital collectibles, and high-traffic live events.
Deliverable
production ML models | product features
Required skills
React, Next.js, TypeScript, Python, FastAPI, AWS, API design, front-end performance, state management, testing (Jest, Playwright, Pytest), CI/CD, Git.
Preferred skills
Experience consolidating multiple products, high-traffic real-time systems, growth engineering, e-commerce/marketplace/gaming live ops, design system ownership.
Technologies
Python, FastAPI, Next.js, React, TypeScript, AWS, Vercel, Playwright, Jest, React Testing Library, Pytest, Storybook, Claude Code, Cursor.
Responsibilities
Design and build fullstack features end-to-end; create reusable components and libraries for multiple apps; manage shared concerns like identity and inventory; ship features with feature flags and instrumentation; write comprehensive tests; mentor engineers via code review and pairing.
Seniority
Senior, hands-on IC