Principal UI Engineer: Lead Frontend Architecture & Viz

Palo Alto Networks, Inc.; Santa Clara (CA); On-site; USD 156,000 - 253,000; Full time

Job summary

Palo Alto Networks is seeking a Principal UI Engineer for the Cortex Platform to lead frontend architecture, drive scalable UI design, and deliver data-rich visualizations. Collaborate with UX, backend, and product teams to translate complex workflows into intuitive interfaces.

You’ll mentor engineers and shape performance, accessibility, and design-system standards across products, contributing to a secure, scalable security platform.

Qualifications

• 10+ years of software engineering experience, with 6+ years in frontend web-scale apps.
• Mastery of JavaScript (ESNext), TypeScript, React, Angular, HTML5, Tailwind/CSS3/Sass.
• Deep understanding of state management (RxJS, Redux Toolkit, Zustand, React Query) and modern frontend patterns (Micro-Frontends, Webpack Module Federation).

Responsibilities

• Architect frontend strategy for Cortex Platform products, building modular, performant micro-frontend structures.
• Lead data visualization and complex UI components for high-volume, multi-source data.
• Maintain enterprise design systems and ensure WCAG accessibility across products.
• Optimize bundle sizes, rendering paths, state management, and asset loading for fast responses.

Skills

Frontend architecture

Web-scale frontend

JavaScript ESNext

TypeScript

React

Angular

HTML5

Tailwind/CSS3/Sass

RxJS

Redux Toolkit

Zustand

React Query

Data visualization

CI/CD tooling

Vite/Webpack

Jest/RTL/Cypress

Education

Bachelor’s or Master’s degree in Computer Science or related field

Tools

Storybook

Vite

Webpack

Jest

Cypress/Playwright

Job description

Palo Alto Networks is seeking a Principal UI Engineer for the Cortex Platform to lead frontend architecture, drive scalable UI design, and deliver data-rich visualizations. Collaborate with UX, backend, and product teams to translate complex workflows into intuitive interfaces.

You’ll mentor engineers and shape performance, accessibility, and design-system standards across products, contributing to a secure, scalable security platform.