Principal Frontend Engineer (Cortex Platform)

At Palo Alto Networks®, we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology and bold thinking. Here, everyone has a voice, and every idea counts. If you’re ready to do the most meaningful work of your career alongside people who are just as passionate as you are, you’re in the right place.

In order to be the cybersecurity partner of choice, we must trailblaze the path and shape the future of our industry. This is something our employees work at each day and is defined by our values: Disruption, Collaboration, Execution, Integrity, and Inclusion. We weave AI into the fabric of everything we do and use it to augment the impact every individual can have. If you are passionate about solving real-world problems and ideating beside the best and the brightest, we invite you to join us! We believe collaboration thrives in person. That’s why most of our teams work from the office full time, with flexibility when it’s needed. This model supports real-time problem-solving, stronger relationships, and the kind of precision that drives great outcomes.

We are a strong, fast-moving group developing advanced solutions in some of Palo Alto Networks’ most innovative areas — the Cortex Platform. We’re looking for an exceptional Senior Frontend Engineer with deep technical skills and a passion for creating exceptional user experiences. You’ll join a team that values clean, scalable architecture and high-quality code, working closely with product, UX, and backend teams to deliver impactful features that protect our customers from evolving cyber threats.

Design and develop next-generation, scalable frontend applications on the Cortex platform. Lead the development of key frontend components, taking ownership from conception through to deployment in a dynamic, agile environment. Proactively collaborate with UI/UX experts, product managers, and backend engineers to translate complex requirements into visionary cybersecurity products. Research, design, and implement sophisticated and complex data visualization solutions to make security data understandable and actionable. Uphold high standards for code quality and architecture through rigorous code reviews, automated testing, and advocating for frontend best practices. Mentor junior engineers and contribute to a culture of continuous learning and technical excellence within the team. Analyze and optimize application performance to ensure a responsive and seamless user experience for our customers.

7+ years of hands-on experience in frontend development. Expert-level, hands-on experience with modern frontend frameworks, specifically Angular or React. Demonstrated experience building and maintaining large-scale, complex web applications. Proficiency with TypeScript and modern JavaScript (ES6+). Strong understanding of frontend performance optimization techniques, modular design patterns, and scalable architecture. Apply AI-powered tools and workflows across planning, design, implementation, testing, debugging, and refactoring Preferred Qualifications Familiarity with cybersecurity concepts and enterprise security products. A proactive and collaborative mindset with a strong sense of ownership, capable of challenging assumptions positively to drive better outcomes. Experience with backend development (e.g., Node.js, Python, Go).

Cortex Platform - Cortex is the industry's only open and integrated, AI-based, continuous security platform. Cortex is a significant evolution of the Application Framework designed to simplify security operations and considerably improve outcomes. Deployed on a global, scalable public cloud platform, Cortex allows security operations teams to speed the analysis of massive data sets. Our Commitment We’re trailblazers that dream big, take