Senior Front-End Engineer

Tradeify

Senior Front-End Engineer responsible for building and scaling user interfaces in a fintech trading platform. Collaborating with cross-functional teams to deliver optimal trading experiences.

Posted 6/17/2026full-timeBoca Raton • Florida • 🇺🇸 United StatesSenior💰 $120,000 - $155,000 per yearWebsite

Tech Stack

Tools & technologies

JavaScriptNext.jsReactReduxTypeScript

About the role

Key responsibilities & impact

Build responsive, high-performance web applications using modern frontend frameworks
Translate designs into pixel-accurate, accessible, and performant UI components
Develop and maintain a scalable design system and component library
Implement real-time dashboards, data visualizations, and trading-related interfaces
Optimize for Core Web Vitals, rendering performance, and cross-browser compatibility
Architect client-side state management for complex, data-intensive applications
Integrate with REST APIs and WebSocket streams for real-time market data
Build efficient data-fetching layers with caching, polling, and streaming support
Handle high-frequency UI updates with minimal performance overhead
Partner with Design to refine UX flows and maintain consistency across the product
Write clean, well-tested, and maintainable component code
Contribute to frontend tooling, build systems, and CI/CD pipelines
Participate in code reviews and help define frontend engineering standards
Troubleshoot performance and rendering issues in production

Requirements

What you’ll need

6+ years of experience in frontend or UI engineering
Expert-level proficiency in React and TypeScript
Strong understanding of Next.js or similar SSR/SSG frameworks
Experience building real-time or data-dense interfaces (dashboards, charts, tables)
Deep understanding of browser rendering, CSS architecture, and web performance optimization
Familiarity with state management libraries such as Zustand, Redux, or Jotai
Experience integrating WebSocket or streaming APIs on the frontend
Solid understanding of accessibility standards (WCAG) and responsive design
Ability to work independently and move quickly in a startup environment
Strong communication and collaboration skills

Benefits

Comp & perks

Join a rapidly scaling fintech and trading platform
Work on products used by a global community of traders
High ownership and ability to make direct impact
Hybrid environment in Boca Raton, FL with a fast-moving startup culture
Opportunity to work across the full frontend stack — UI systems, data visualization, and real-time interfaces
Collaborative, ambitious, and highly driven team environment

ATS Keywords

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Hard Skills & Tools

ReactTypeScriptNext.jsREST APIsWebSocketCSS architecturestate managementdata visualizationperformance optimizationUI component development

Soft Skills

communicationcollaborationindependenceadaptabilityproblem-solving