React Developer - Hybrid

React Developer – Data team - Junior, mid-level and senior positions.

Client: Elite Systematic Trading Firm

Location: London (Hybrid Working)

Compensation: Up to £175,000 Base + Bonus

An elite systematic trading firm is seeking a high-calibre React Developer to join a specialist data team responsible for building sophisticated, data-intensive web applications. These platforms sit at the heart of the firm’s analytics and decision-making workflows, enabling traders, quants, and researchers to interact with complex datasets in real time. The firm is known for its technology-first culture, greenfield development, and exceptional engineering standards.

As a React Developer, you will design and build complex, high-performance web applications that visualise and manipulate large-scale financial and analytical data.

• Designing and developing advanced React-based web applications for data exploration, analytics, and monitoring
• Building rich, interactive user interfaces capable of handling large, real-time datasets
• Collaborating closely with data engineers, quantitative researchers, and traders to deliver intuitive, high-impact tooling
• Optimising frontend performance, responsiveness, and scalability
• Contributing to UI architecture, component libraries, and frontend engineering best practices

• Ownership of greenfield, data-heavy web applications
• Market-leading compensation and bonus potential
• Access to modern frontend technologies and tooling
• Rapid career progression in a highly technical, performance-driven environment
• Strong emphasis on engineering quality, usability, and system performance
• A collaborative culture with close interaction across data, research, and trading teams

• Strong commercial experience as a React Developer or Frontend Software Engineer
• Experience optimising UI performance for large datasets or real-time applications is beneficial
• Familiarity with modern development practices (version control, testing, CI/CD)
• Excellent communication skills and ability to work closely with technical stakeholders
• Background in financial systems or data platforms is beneficial but not essential