Remote/ Senior Frontend Developer (React.js)

client of Hirelabanese

Responsibilities:


- Ship complex, real-time trading features using React 18+ with TypeScript (hooks, context, concurrent features)

- Design robust client data flows with Redux Toolkit + Redux-Saga and React Query for caching and real-time sync

- Integrate REST and WebSocket endpoints for live trading feeds, order books, balances, and notifications

- Build responsive UIs with Tailwind CSS and Styled Components ensuring cross-device, mobile-first UX

- Deliver rich visualizations (candlesticks, P&L, live dashboards) using ApexCharts/React-ApexCharts

- Optimize front-end performance through code-splitting, lazy loading, virtual scrolling, and bundle optimization

- Apply scalable architecture patterns (feature-based modules, SOLID principles) for data-heavy applications

- Implement secure authentication flows (JWT, OAuth, 2FA) and handle exchange API keys safely

- Contribute to internationalization with i18next (13+ languages, including RTL support)

- Raise code quality through reviews, documentation, and mentoring team members



Technical Requirements:


- Mid-Level: 3-5 years building React/TypeScript products in production

- Senior-Level: 5+ years with evidence of architectural impact and technical leadership

- Strong proficiency in React 18+, TypeScript, and modern JavaScript (ES2020+)

- Hands-on experience with Redux Toolkit, Redux-Saga, React Query in production environments

- Real-time client integrations (WebSockets), REST API design, and efficient large dataset handling

- Charting experience with ApexCharts or comparable libraries (zoom, overlays, live updates)

- Performance optimization skills: measuring, profiling, and fixing bottlenecks

- Security awareness for authentication and key management

- Bonus: Experience with CCXT or exchange libraries, trading/fintech background, Jest + React Testing Library, CI/CD, monitoring tools (Sentry, Datadog), PWA features, Web3/wallet integrations