Senior Staff Fullstack Engineer

Blackbird Labs, Inc. operates a restaurant loyalty and payments platform, including the Blackbird dining app and Flynet onchain transaction network.

New York City, United States
About Blackbird Labs, Inc.

Blackbird connects restaurants and diners through check-in payments, rewards, memberships, reservations, and $FLY loyalty points. Its Flynet product is an Ethereum Layer 3 network built for restaurant-industry transactions and applications.

View jobs by Blackbird Labs, Inc.

Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

Own end-to-end development of Flycar across its user interface, API integrations, WebSocket flows, and fallback handling. 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.

Requirements

  • 6+ years with React and TypeScript.
  • Experience with real-time data using WebSockets and polling, including graceful degradation on unreliable networks.
  • Experience shipping payments, POS, fintech, or similar high-consequence software.
  • Ability to work across the stack, read API contracts, debug queries, and reason about system design.
  • Strong ownership instincts in a small, fast-moving team.
  • Experience with payments infrastructure, POS systems, restaurant or hospitality technology, multi-tenant systems, or hardware-constrained environments is beneficial.
  • Exposure to blockchain, crypto, or web3 and experience with Datadog, Amplitude, or similar platforms are beneficial.

Responsibilities

  • Own end-to-end development of Flycar across UI, API integration, WebSocket flows, and fallback handling.
  • Build reliable interfaces across FSR and QSR environments with inconsistent hardware, unreliable networks, and varied POS configurations.
  • Drive frontend architecture decisions across the platform.
  • Debug real-time payment flows spanning terminals, mobile applications, and backend services.