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UI Engineer (Contractor)

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Onsite

UI Engineer (Contractor)

Citadel Securities

UI Engineer (Contractor)

Skills

ReactNodeTypescriptHTMLSassElectronJavascript

3 months ago

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Important information


Contract type:

Permanent

Salary:

$175,000 – $350,000 / year

Location:

New York, NY, USA

Work mode:

Onsite

Published on:

8 August 2026

What they need


Role Summary

In our mission to be the most successful investment team in the world, we hire the brightest minds in technology, research, and finance to create innovative solutions that impact the financial markets and take data analysis to new levels. User Interface (UI) Engineers at Citadel Securities are crucial members of the team gathering requirements and continuously delivering high-quality applications. Our UI Engineers leverage advanced JavaScript knowledge and visualization skills to build scalable and performant web applications. These members of our team are thought leaders who engage the development community to push boundaries of what is the next generation our web platform.

Location

New York

Responsibilities

  • Develop solutions that enable our client facing investment professionals to research, monitor, and trade in real-time on internal/external information. This includes gathering requirements, prototyping solutions, and delivering final products that optimize users workflows and interactions across the investment process.
  • Partner with the industry’s top analysts, traders, quantitative researchers, and data scientists to design, develop, and deploy solutions that answer fundamental questions about financial markets.
  • Visualize financial data in a way that will allow investment professionals to discover new insights, improve research processes, and decision-making.
  • Drive our evolution by challenging the status quo and identifying opportunities to enhance our platform.

Qualifications

  • 5-10 years of work experience, ideally within client/customer facing UX/UI development experience
  • Passion for working with users and developing solutions that deliver amazing user experience (multi-tenants, real-time, high performance web applications)
  • Experience with any of the following: React, Angular, Redux, Electron, WebAssembly, Node.js
  • Experience with wire-framing, prototyping and user-centric design
  • Proficiency with JavaScript (ES6) and TypeScript
  • Proficiency with HTML5 (Canvas, WebWorkers, WebSockets), CSS3, SASS
  • Strong written and verbal communications skills
  • Bachelor’s, Master’s degree in Computer Science or equivalent experience

Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel, please share your details and we will contact you if there is a vacancy available.

A bout Citadel Securities

Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market’s and our clients’ most critical challenges. Together, we are forging the future of capital markets. For more information, visit citadelsecurities.com.

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