PrincipalSenior Engineer Software Agentic Endpoint Security(Cortex)

Our Mission

At Palo Alto Networks were united by a shared missionto 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 youre ready to do the most meaningful work of your career alongside people who are just as passionate as you are youre in the right place.

Who We Are

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!

Job Summary

We are looking for an experienced and highly capable Principal/Senior Software Engineer to join the Koi team. This role is focused on building and scaling a complex high-impact product that operates across large-scale enterprise environments. As a Principal Engineer you will take ownership of major parts of the system and work across the full stack including backend services data pipelines frontend applications and endpoint/agent code. You will play a key role in shaping the architecture of Koi as it grows ensuring the system remains scalable reliable and easy to evolve.

Key Responsibilities

• Design and build scalable high-performance systems across the full Koi stack

• Own architecture and technical direction for critical components

• Work across backend data frontend and agent code

• Tackle complex challenges related to scale reliability and performance

• Drive best practices in system design testing and observability

• Collaborate closely with product security and customer-facing teams

• Identify and resolve bottlenecks and architectural limitations

• Mentor other engineers and raise the overall technical bar of the team

Qualifications

Required Qualifications

• Extensive experience building and scaling distributed systems

• Strong backend engineering skills with ability to work across the full stack

• Experience with data-intensive systems and pipelines

• Ability to design systems that operate reliably at scale

• Strong problem-solving skills and ownership mindset

• Experience mentoring engineers and leading technical initiatives

Preferred Qualifications

• Experience with public cloud platforms (AWS GCP Azure)

• Familiarity with containerization and orchestration technologies (e.g. Docker Kubernetes)

• Proficiency in languages such as Go Python or Java

• Experience with modern frontend frameworks like React or

Our Commitment

Were trailblazers that dream big take risks and challenge cybersecuritys status quo. Its simple: we cant accomplish our mission without diverse teams innovating together.

We are committed to providing reasonable accommodations for all qualified individuals with a disability. If you require assistance or accommodation due to a disability or special need please contact us at .

Palo Alto Networks is an equal opportunity employer. We celebrate diversity in our workplace and all qualified applicants will receive consideration for employment without regard to age ancestry color family or medical care leave gender identity or expression genetic information marital status medical condition national origin physical or mental disability political affiliation protected veteran status race religion sex (including pregnancy) sexual orientation or other legally protected characteristics.

All your information will be kept confidential according to EEO guidelines.