JavaScript / React Application Developer

Javascript / ReactJS Developer

Key Responsibilities : -

10+ years of experience

Design, develop, and maintain high-performance front-end applications supporting trading, risk, and research workflows.

Build responsive, data-intensive UIs using ReactJS, JavaScript (ES6+), HTML / CSS, and the Browser API.

Implement real-time data visualization and interaction features optimized for low-latency environments.

Integrate seamlessly with backend systems via WebSockets and REST APIs to deliver live market data and trading updates.

Collaborate closely with KDB, Java, and Kafka engineers to ensure robust data flow and efficient UI–backend interaction.

Apply modern React design patterns (hooks, context, state management) to build scalable, maintainable components.

Conduct performance tuning, debugging, and profiling to ensure smooth operation under production trading loads.

Work 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, as well as commonly used JavaScript patterns.

Proven experience integrating UIs with real-time backend services (developing and debugging WebSockets and REST APIs).

Working knowledge of Node.Js for tooling or lightweight backend integration.

Experience with JavaScript testing frameworks (e.G., Jest, Mocha, 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.