Senior Frontend Engineer (NYC) at Atoms

About the role

What will you do at Atoms?

We are looking for a Senior Frontend Engineer with 3+ years of experience to build and scale real-time logistics and operations platforms at Picnic (Atoms Food). You'll work across web and mobile surfaces, designing high-performance React applications powered by WebSockets, SSE, and GraphQL subscriptions. This is an opportunity to shape frontend architecture that directly powers real-world food delivery operations during a critical 10 → 100 scale phase.

You'll partner closely with backend and operations teams, owning projects end-to-end in a fast-moving, engineering-first culture. What will you be doing?

Design and build high-performance React applications with real-time data via WebSockets, SSE, and GraphQL subscriptions Contribute to and shape courier mobile apps built in React Native Lead technical design for complex features from initial architecture through production rollout Improve frontend reliability, latency, and scalability in a high-throughput logistics environment Mentor engineers and raise the bar for frontend engineering across the team

Which skills does this role require?

ReactReact NativeTypeScriptGraphQLWebSocketsSSEREST APIs

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