Senior Front End Developer (UI/UX)

Overview

Job Purpose

Intercontinental Exchange (ICE) is seeking a Senior Front-End Web Developer with a strong passion for UI/UX design and accessibility. This role will serve as a primary contributor in building and maintaining React-based theming solutions and overseeing the ongoing development of a shared component library leveraged by hundreds of projects across the organization. The ideal candidate will bring deep expertise in JavaScript, HTML, CSS, and modern frameworks such as React, Redux, and TypeScript, combined with a strong understanding of responsive design, accessibility standards (WCAG/ARIA), and functional programming principles. While the primary focus is on front-end development and user experience, this role will also collaborate on other development initiatives. Success in this position requires creativity, analytical thinking, attention to detail, and the ability to work independently while influencing best practices across teams. 

Responsibilities

• Contribute to the design and development of company-wide web applications and libraries.
• Lead efforts to design, architect, and implement new software components.
• Independently manage project activities related to builds and deployments.
• Create and maintain software tests to ensure functionality and quality.
• Develop design documentation for new software and subsequent versions.
• Identify opportunities to improve and optimize applications.
• Collaborate with business analysts or product managers to understand new requirements.
• Support and mentor developers on JavaScript/web concepts.
• Adhere to team guidelines for quality and consistency.
• Follow company software development processes and standards.

Knowledge and Experience

• Bachelor’s degree in computer science; graduate degree preferred.
• 5+ years of advanced JavaScript and functional programming experience.
• 3+ years of advanced CSS experience.
• 2+ years of HTML5 techniques.
• Expert-level proficiency in JavaScript (ES6+), HTML5, and CSS3
• Strong experience with React and related libraries (Redux, React Hooks)
• Proficiency in TypeScript for scalable and maintainable code
• Familiarity with functional programming principles and component-driven development
• Deep understanding of UI/UX best practices, responsive design, and design systems
• Hands-on experience implementing WCAG and ARIA accessibility standards

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• Ability to collaborate with designers to translate wireframes and prototypes into high-quality interfaces
• Experience with modern build tools (Webpack, Vite, Babel) and package managers (npm)
• Knowledge of version control systems (Git) and CI/CD pipelines
• Familiarity with testing frameworks (Jest, React Testing Library)
• Strong analytical and problem-solving abilities
• Excellent communication and collaboration skills across cross-functional teams
• Ability to work independently and exercise sound judgment in a fast-paced environment

Preferred

• Experience contributing to or maintaining shared component libraries or design systems
• Knowledge of performance optimization techniques for SPAs
• Familiarity with theming systems and CSS-in-JS solutions (e.g., Styled Components, Emotion)

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