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Senior Front-end Engineer

  • REST
  • Node.js
  • TypeScript
  • Next.js
  • API
  • Typescript
  • Flow

Posted: 3 days ago

Responsibilities

  • Own the front-end architecture of a high-throughput, real-time trading application.

  • Design, build, and maintain production-grade applications using Next.js, React, and TypeScript.

  • Implement pixel-accurate, accessible, and responsive UI systems under strict performance budgets.

  • Lead complex feature development end-to-end, from technical design to production rollout.

  • Optimize rendering paths, state management, data flow, and bundle size for sub-second interactions.

  • Integrate deeply with REST and WebSocket APIs powering live market data and execution flows.

  • Collaborate tightly with product, design, and backend engineers on advanced trading workflows.

  • Set and uphold engineering standards around code quality, testing, performance, and maintainability.

  • Mentor other engineers and raise the bar for front-end execution across the team.

  • Contribute across the stack when needed (API design, data models, infra tradeoffs).

Requirements

  • 6+ years of professional front-end engineering experience, with clear ownership of complex production systems.

  • Expert-level mastery of React, Next.js, and TypeScript in high-performance environments.

  • Deep understanding of front-end architecture, rendering behavior, and performance optimization.

  • Proven experience with real-time data systems (WebSockets, streaming updates, event-driven UI).

  • Strong instincts around state management, data consistency, and UI correctness under load.

  • Comfort reasoning about backend systems (Node.js, databases, cloud infrastructure); hands-on experience is a plus.

  • Track record of shipping and maintaining features that operate at scale.

  • Ability to make high-leverage technical decisions independently.

Non-Negotiable

  • Speed — in execution, iteration, and UI responsiveness.

  • Obsession with performance, not just aesthetics.

  • High ownership, low ego, zero tolerance for sloppy systems.

Preferred

  • Prior experience in fintech, trading platforms, or other latency-sensitive products.

  • Open-source contributions or technically substantial side projects.

  • Comfort operating in fast-moving, high-accountability startup environments.

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