ReactJS Developer

We are seeking a skilled ReactJS Developer to design, develop, and maintain high-performance front-end applications that support trading, risk, and research workflows within the capital markets domain. This role involves building responsive, data-intensive user interfaces using ReactJS, modern JavaScript (ES6+), HTML/CSS, and the Browser API.

Key responsibilities include implementing real-time data visualization and interaction features optimized for low-latency environments, and integrating seamlessly with backend systems via WebSockets and REST APIs to deliver live market data and trading updates. You will collaborate closely with KDB, Java, and Kafka engineers to ensure robust data flow and efficient UI-backend interaction.

This position requires applying modern React design patterns such as hooks, context, and state management to build scalable, maintainable components. You will also be responsible for performance tuning, debugging, and profiling to guarantee smooth operation under production trading loads. A crucial aspect of this role is working directly with traders, quants, and technology teams to translate workflow requirements into intuitive, reliable user interfaces.

Qualifications:

• Bachelor’s degree in Computer Science, Software Engineering, or a related technical discipline.
• Expert-level proficiency in ReactJS, JavaScript (ES6+), HTML/CSS, and browser-based development.
• Deep understanding of React UI architecture and design patterns, along with commonly used JavaScript patterns.
• Proven experience integrating UIs with real-time backend services, including developing and debugging WebSockets and REST APIs.
• Working knowledge of Node.js for tooling or lightweight backend integration.
• Experience with JavaScript testing frameworks such as Jest, Mocha, or Cypress.
• Strong grasp of front-end performance optimization, cross-browser compatibility, and secure web application practices.
• Ability to operate effectively in a fast-paced trading or financial technology environment with high standards for reliability and latency.