Senior Fullstack Engineer, Blackbird Labs

• 5+ years with React and TypeScript
• Experience with real-time data (WebSockets, polling) and graceful degradation on unreliable networks
• Track record shipping software where failure has immediate, visible consequences — payments, POS, fintech, or similar
• Comfort working across the stack: reading API contracts, debugging queries, reasoning about system design
• Strong ownership instincts in a small, fast-moving team where scope is fluid

Desirable

• Blackbird is looking for a Senior Fullstack Engineer to own Flycar, our restaurant payments terminal used by thousands of restaurants
• You'll build the software servers and managers rely on during every service, where downtime means a dining room that can't close checks
• This is a Next.js/TypeScript monorepo powering multiple apps across payments, loyalty, and restaurant operations. You'll work primarily in Flycar but contribute across the platform
• Own end-to-end development of Flycar - UI, API integration, WebSocket flows, and fallback handling when things go wrong
• Build interfaces that work reliably across FSR and QSR environments with inconsistent hardware, spotty networks, and dozens of POS configurations
• Drive frontend architecture decisions — you'll shape how we build, not just what we build
• Debug real-time payment flows that span our terminal, mobile app, and backend services