Principal Machine Learning Engineer (NLP - AI Runtime Security)

Palo Alto Networks
Santa Clara, CA

Company Description

Our Mission

At Palo Alto Networks® everything starts and ends with our mission:

Being the cybersecurity partner of choice, protecting our digital way of life.

Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we’re looking for innovators who are as committed to shaping the future of cybersecurity as we are.

Who We Are

We take our mission of protecting the digital way of life seriously. We are relentless in protecting our customers and we believe that the unique ideas of every member of our team contributes to our collective success. Our values were crowdsourced by employees and are brought to life through each of us everyday - from disruptive innovation and collaboration, to execution. From showing up for each other with integrity to creating an environment where we all feel included.

As a member of our team, you will be shaping the future of cybersecurity. We work fast, value ongoing learning, and we respect each employee as a unique individual. Knowing we all have different needs, our development and personal wellbeing programs are designed to give you choice in how you are supported. This includes our FLEXBenefits wellbeing spending account with over 1,000 eligible items selected by employees, our mental and financial health resources, and our personalized learning opportunities - just to name a few!

At Palo Alto Networks, we believe in the power of collaboration and value in-person interactions. This is why our employees generally work full time from our office with flexibility offered where needed. This setup fosters casual conversations, problem-solving, and trusted relationships. Our goal is to create an environment where we all win with precision.

Job Description

Your Career

You will have the opportunity to build a career solving network security challenges leveraging advanced machine learning techniques on exabytes of data. You will help create and deliver the most advanced AI and Machine Learning enabled solutions to detect and remediate network issues, discover threats, provide intelligence and protect devices.

Your Impact

  • You will work in a fast paced team to create and deliver new product and mission features to the network and security platform that many customers use on a daily basis
  • You will actively engage and contribute to the network security community through collaborations
  • You will be part of the team that is leading and driving industry technology evolution in and creating a positive impact on business
  • You will design, train and deploy ML models to detect threats posed by widespread adoption of GenAI

Qualifications

Your Experience

  • M.S. or Ph.D degree in Computer Science, Mathematics, Statistics or related field or equivalent military experience required
  • 10+ years industry experience as machine learning engineer / data scientist
  • 10+ years experience in design, algorithms and data structures - Expertise with one or more of the following languages is must - Python, R, Golang
  • Proven track record in solving difficult real world problems by applying data driven approaches
  • Extensive experience with NLP/NLU problems and deep learning frameworks such as PyTorch, JAX and/or TensorFlow including
  • Deep understanding and experience working with modern LLMs / Multimodal Models
  • Thorough understanding and ability to design, test, evaluate and deploy ML models at scale
  • Excellent communication skills with the ability to influence at all levels of the organization
  • A self driven individual contributor and an excellent team player

Additional Information

The Team

Our engineering team is at the core of our products – connected directly to the mission of preventing cyberattacks. We are constantly innovating – challenging the way we, and the industry, think about cybersecurity. Our engineers don’t shy away from building products to solve problems no one has pursued before. We define the industry, instead of waiting for directions. We need individuals who feel comfortable in ambiguity, excited by the prospect of a challenge, and empowered by the unknown risks facing our everyday lives that are only enabled by a secure digital environment.

Compensation Disclosure

The compensation offered for this position will depend on qualifications, experience, and work location. For candidates who receive an offer at the posted level, the starting base salary (for non-sales roles) or base salary + commission target (for sales/commissioned roles) is expected to be between $151000/YR - $223450/YR. The offered compensation may also include restricted stock units and a bonus. A description of our employee benefits may be found here .

Our Commitment

We’re problem solvers that take risks and challenge cybersecurity’s status quo. It’s simple: we can’t 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 [email protected] .

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.

Is role eligible for Immigration Sponsorship?: Yes

Posted 2025-09-22

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