Lead Frontend Platform Engineer — UI Systems

FIS; Jacksonville (FL); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Competitive salary and benefits

Career development tools

Opportunities to work on challenging,高

Job summary

FIS is seeking a hands-on Senior Frontend Platform Engineer to design and build shared UI components, frameworks, and tooling used by product teams across the company. You will help teams adopt modern front-end patterns, ensure accessibility and on-brand theming, and contribute to AI-assisted coding workflows.

You will mentor engineers, review code, and raise the quality bar by example, while collaborating with designers and product partners to move platforms forward and deliver consistent,

Qualifications

• Deep experience building front-end applications with modern frameworks such as React and TypeScript.
• Experience building component libraries, design systems, or shared frameworks that other engineers depend on.
• A strong grasp of accessibility, performance, and testing in production web applications.
• Hands-on experience with AI coding tools and a point of view on how they change engineering work.
• Clear communication and the ability to work closely with designers, product teams, and other engineers.

Responsibilities

• Build and evolve shared UI components, frameworks, and tooling used by product teams across FIS.
• Make accessibility, multi-brand theming, and analytics built in, so every team gets them by default.
• Work directly with product teams to help them adopt the platform and move off older technology.
• Build the rules, skills, and tooling that help AI coding agents produce consistent, on-brand code.
• Review code, mentor engineers, and raise the quality bar by example.

Skills

React

TypeScript

Component libraries

Design systems

Accessibility

Performance

Testing

AI coding tools

Communication

Tools

MUI

Design tokens

React Native

Job description

FIS is seeking a hands-on Senior Frontend Platform Engineer to design and build shared UI components, frameworks, and tooling used by product teams across the company. You will help teams adopt modern front-end patterns, ensure accessibility and on-brand theming, and contribute to AI-assisted coding workflows.

You will mentor engineers, review code, and raise the quality bar by example, while collaborating with designers and product partners to move platforms forward and deliver consistent,