Senior Staff Fullstack Engineer

You own end-to-end development of Flycar across its user interface, API integrations, WebSocket flows, and fallback handling. You build reliable interfaces for challenging hardware and network environments, guide frontend architecture, and debug real-time payment flows across terminals, mobile applications, and backend services.

Responsibilities

• Own end-to-end development of Flycar
• Build reliable interfaces across FSR and QSR environments
• Drive frontend architecture decisions
• Debug real-time payment flows across terminals, mobile applications, and backend services

Requirements

• 6+ years with React and TypeScript
• Real-time data experience
• WebSockets
• Polling
• Graceful degradation on unreliable networks
• Experience shipping payments, POS, fintech, or similar software
• API contracts
• Query debugging
• System design
• Strong ownership
• Payments infrastructure
• POS systems
• Restaurant or hospitality technology
• Multi-tenant systems
• Hardware-constrained environments
• Blockchain
• Crypto
• Web3
• Datadog
• Amplitude