Palo Alto Networks
Principal UI Engineer, Platform (Cortex)
Office - USA - CA - Headquarters · No · Principal · Full-time · Posted Oct 21, 2026
- Experience
- 10+ years of software engineering experience, with 6+ years focused on complex, web-scale frontend applications.
- Education
- Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or equivalent practical experience.
- Visa sponsorship
- Immigration sponsorship eligible: Yes.
About the job
Lead frontend architecture and engineering for the Cortex security platform, building scalable interfaces and visualizations that help security analysts monitor, analyze, and automate threat responses.
What you'll do
- Develop scalable micro-frontend architecture, complex data visualizations, and high-performance UI components.
- Evolve accessible design systems and establish frontend testing, quality, and code review standards.
- Collaborate across UX, backend, AI/ML, and product teams; mentor UI engineers.
What they ask for
- Mastery of JavaScript (ESNext), TypeScript, React, Angular, HTML5, and Tailwind/CSS3/Sass.
- Deep knowledge of state management and modern frontend patterns, including Micro-Frontends and Webpack Module Federation.
- Hands-on experience with complex data visualizations and rich dashboards; experience with build tools, CI/CD, and testing frameworks.
- Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or equivalent practical experience.
Nice to have
- Experience in cybersecurity, SIEM, or SOC operations, or maintaining enterprise design systems and component libraries.
- Understanding of WebSockets, Server-Sent Events, and real-time streaming; exposure to AI/LLM integrations in web interfaces.
Tools
JavaScript (ESNext), TypeScript, React, Angular, HTML5, Tailwind/CSS3/Sass, RxJS, Redux Toolkit
AI focus
Collaborate with AI/ML teams on platform interfaces; preferred exposure to AI/LLM integrations such as streaming chat responses and autonomous agent workflows.
Model-written summary · the original posting is authoritative