Extensive experience delivering production frontend applications with ownership of architecture and technical delivery.
Deep expertise in TypeScript, JavaScript, React, HTML, and CSS, including component design and state management.
Proven experience building complex, real-time, data-intensive user interfaces.
Strong understanding of browser performance, rendering behavior, asynchronous processing, and frontend/backend integration.
Experience with streaming APIs, automated testing, CI/CD, and production diagnostics.
Ability to work directly with business stakeholders and turn ambiguous requirements into practical solutions.
Demonstrated technical leadership with a strong commitment to hands-on engineering.
Responsibilities
Own UI architecture and delivery for modern trading applications, including basket trading and order management.
Partner with traders, product owners, and backend engineers to translate complex workflows into intuitive user experiences.
Build a shared foundation of reusable components and application services to reduce duplication across teams.
Design responsive, data-intensive interfaces with real-time updates and clear handling of application state.
Establish engineering standards for frontend performance, automated testing, accessibility, and security.
Remain hands-on through coding, design reviews, and troubleshooting.
Mentor engineers and drive consistent engineering practices across applications and regions.
Benefits
Opportunity to shape the next generation of equities trading applications.
Collaborative environment working directly with traders and product owners.
Focus on modernizing legacy interfaces while maintaining business continuity.
Hands-on technical leadership role with mentoring opportunities.
Engagement in high-performance, data-intensive projects.
Full Job Description
Job Description
We are seeking a hands-on UI Engineering Lead to shape and deliver the next generation of equities trading applications. This role combines frontend architecture, development, and technical leadership to create intuitive, high-performance trading workflows and a reusable UI platform supporting Equities Modernization.
Key Responsibilities
Own UI architecture and delivery for modern trading applications, including basket trading, order management, and real-time monitoring.
Partner directly with traders, product owners, and backend engineers to translate complex workflows into intuitive user experiences.
Build a shared foundation of reusable components, interaction patterns, and application services that reduces duplication across teams.
Design responsive, data-intensive interfaces with real-time updates, high-volume grids, and clear handling of connection and application state.
Establish engineering standards for frontend performance, automated testing, accessibility, security, and production observability.
Remain hands-on through coding, design reviews, troubleshooting, and delivery of critical capabilities.
Mentor engineers and drive consistent engineering practices across applications and regions.
Modernize legacy interfaces incrementally while maintaining business continuity.
Required Qualifications
Extensive experience delivering production frontend applications, with ownership of architecture and technical delivery.
Deep expertise in TypeScript, JavaScript, React, HTML, and CSS, including component design and state management.
Proven experience building complex, real-time, data-intensive user interfaces.
Strong understanding of browser performance, rendering behavior, asynchronous processing, and frontend/backend integration.
Experience with streaming APIs, automated testing, CI/CD, and production diagnostics.
Ability to work directly with business stakeholders and turn ambiguous requirements into practical solutions.
Demonstrated technical leadership with a strong commitment to hands-on engineering.
Preferred Qualifications
Experience in equities, electronic trading, OMS/EMS, or other front-office platforms.
Familiarity with high-performance data grids, desktop interoperability, Deephaven and multi-window trading workflows.
Experience building shared UI platforms or design systems adopted across multiple teams.
Familiarity with Java or C++ backend environments and AI-assisted development practices.
Primary Location Full Time Salary Range of $250,000 - $300,000.
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About Jefferies Financial Group
Jefferies Financial Group Inc. is a diversified financial services company that operates in investment banking, capital markets, asset management, and direct investing. The company was founded in 1962 and is headquartered in New York City. Jefferies Financial Group has operations in over 30 countries and employs over 4,000 people. The company's businesses include Jefferies, a global investment bank; Leucadia Asset Management, an asset management firm; and Berkadia, a commercial real estate company. Jefferies Financial Group is publicly traded on the New York Stock Exchange under the ticker symbol JEF.
