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Urgent! Frontend Engineer (React/TypeScript) Job Opening In San Francisco – Now Hiring OnHires

Frontend Engineer (React/TypeScript)



Job description

Location: Remote (Europe)
Employment: Full-time

🌐 About Our Client

Our client is building a cutting-edge AI-powered cryptocurrency trading platform.

The product delivers automated trading bots (DCA, Grid, Quantum), portfolio management tools, real-time market data, and multi-exchange integrations (Binance, Bybit, OKX, and others).

Their mission: to provide institutional-grade trading capabilities with consumer-grade UX — making advanced trading accessible, fast, and reliable.

💻 What You’ll Do

As a Frontend Engineer, you’ll be at the center of creating an intuitive, high-performance trading experience:


  • Ship real-time trading features in React 18+ with TypeScript.


  • Design data flows with Redux Toolkit, Redux-Saga, and React Query (caching, optimistic updates, real-time sync).


  • Integrate APIs & live feeds via REST + WebSockets for order books, balances, and notifications.


  • Craft responsive UIs with Tailwind CSS + Styled Components, ensuring a seamless mobile-first experience.


  • Deliver rich visuals like candlestick charts, P&L dashboards, and live market visualizations using ApexCharts or similar.


  • Optimize performance with code-splitting, lazy loading, bundle budgets, and profiling.


  • Implement secure auth flows (JWT, OAuth, 2FA) and manage exchange API keys safely.


  • Contribute to internationalization (13+ languages, including RTL).


  • Raise the bar by mentoring peers, reviewing code, and shaping front-end architecture.



🧑‍💻 You’ll Be a Strong Fit If You Have


  • Solid expertise in React (18+) + TypeScript and modern ES2020+.


  • Hands-on experience with Redux Toolkit, Redux-Saga, and React Query in production.


  • Proven work on real-time systems (WebSockets, live market data, large datasets).


  • Experience with charting libraries (ApexCharts, Highcharts, D3, etc.) including live updates.


  • Strong understanding of performance optimization.


  • Awareness of secure authentication flows and API key management.


Leveling guidance:


  • Mid-level: ~3–5 years React/TS experience.


  • Senior-level: 5+ years with architectural or product-wide impact.

    👉 Impact > years of experience: if you can demonstrate senior-level contributions, you’ll be considered at that level.



✨ Bonus Skills


  • Trading/fintech background (order forms, risk, real-time systems).


  • Testing with Jest + React Testing Library.


  • Familiarity with CI/CD pipelines.


  • Monitoring/analytics (Sentry, Datadog, PostHog).


  • Experience with PWAs or Web3/wallet integrations.



🤝 What Makes You Stand Out


  • Problem-solving mindset in complex, data-heavy contexts.


  • Collaborative and proactive in Agile teams.


  • Clear communication, clean documentation, thoughtful peer reviews.



📈 What Success Looks Like

You’ll deliver high-impact features for a global trading audience, ensure the platform is fast, reliable, and secure, and shape the front-end architecture of a product scaling at speed.


Required Skill Profession

Computer Occupations



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