Senior Front-end Engineer

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.