Frontend Developer

**UI Engineer – React High-Frequency Trading**

New York City

Hybrid on-site

Comp: Base + Competitive Bonus (Advertised is base salary only)

Please note: Financial Markets Experience or Outstanding FAANG experience is mandatory.

A leading high-frequency trading firm is seeking a talented UI Engineer to build sophisticated, high-performance applications used directly by traders, quantitative researchers, and investment professionals.

This is a technology-intensive environment where UI engineering goes far beyond traditional web development. You’ll work with complex real-time datasets and build responsive applications that provide users with immediate visibility into trading, risk, positions, market data, and performance.

The Role

• Design and build sophisticated trading applications using React and TypeScript/JavaScript.
• Develop highly responsive interfaces for real-time financial and market data.
• Build reusable components and scalable front-end architecture.
• Work directly with traders, quants, and engineers to understand complex workflows and translate them into intuitive applications.
• Optimize applications for performance when handling large and rapidly changing datasets.
• Own projects throughout the development lifecycle, from design and architecture through production.
• Contribute to UI engineering standards and the evolution of the firm’s broader front-end platform.

Candidate Profile

• Up to 10 years of professional software engineering experience.
• Deep expertise in React and modern JavaScript/TypeScript.
• Strong understanding of front-end architecture, performance optimization, state management, and component design.
• Professional experience within either financial markets/investment technology or a leading technology/FAANG environment.
• Strong Computer Science and software engineering fundamentals.
• Experience developing complex, data-intensive applications rather than primarily consumer-facing websites.
• Ability to work closely with demanding end users and solve technically challenging problems.
• Experience with trading systems, market data, visualization, real-time applications, or high-performance UIs is highly desirable.

Why Join?

You’ll join a highly technical trading environment where engineers have direct influence over the tools used to make investment and trading decisions.

The role combines the engineering standards and technical challenges of a leading technology company with the pace, ownership, and direct business impact of a high-frequency trading firm.