Principal Machine Learning Engineer (Cortex Xpanse)

Your Career

We’re looking for a Principal Machine Learning Engineer to join Cortex Xpanse. We help protect the world’s most essential organizations by finding risks on the Internet that no one else can find.

Our team is responsible for some core products which allows us to attribute Internet assets to customer networks using a human-in-the-loop machine learning system while turning trillions of Internet data points into critical cybersecurity insights. The Asset Attribution ML-powered system helps provide customers with the world's most accurate view of their Internet-facing digital assets.

In this role, you will be an integral part of a group of Software and ML engineers that continuously surveys petabytes of data to find risks online and protect some of the world's most important and relied upon organizations from malicious software and hackers. You will directly contribute to our mission by building AI/ML systems that increase the effectiveness of our security products, and you will directly work with stakeholders to define, design and implement improvements to our software.

You will be a technical leader within the team, with responsibility for mentoring and supporting your team members, developing features from end-to-end, and supporting our systems in production. You’ll leverage your data and software engineering knowledge to build new features, deploy data-driven automations, and ultimately augment our teams with ML-assisted workflows.

Your Impact

• Prototype, build, and improve AI systems and ML models, including large language model (LLM) and generative AI applications, to automate and enhance team workflows

• Strengthen infrastructure for data ETL, model training and lifecycle, MLOps, batch and real-time processing, and inference

• Mentor and coach other ML engineers on developing, fine-tuning, and evaluating both traditional and generative AI models

• Work directly with security professionals who use your software and AI systems every day to help them be more effective and improve the quality of their work

• Develop feature engineering, data pipelines, and transformations to deliver reliable data for model training and LLM inference

• Measure and refine model performance through metrics-driven evaluations and continuous experimentation

• Deliver, monitor, and continually improve secure AI and ML systems in production, including LLM-powered tools and automation features

Your Experience

• Experience with Python including delivering production-quality code and debugging in a production environment

• Expertise in one or more of:

  • MLOps expertise (e.g. Feature Store, Model Serving, Model Monitoring)

  • Data Engineering expertise (e.g. Airflow, Apache Beam, Dataflow, SQL)

  • Designing and building applications powered by LLMs and generative AI (for example: retrieval-augmented generation, intelligent search, entity linking, summarization, conversational interfaces, automated reasoning, and code understanding)

  • Applying modern AI techniques including LLMs, embeddings, fine-tuning, and prompt engineering, using frameworks such as Hugging Face Transformers, LangChain, OpenAI API, and PyTorch

• Experience operating ML systems in production environments

• Conceptual thinking and creativity; you demonstrate an ability to consider various techniques to solve different modeling problems we face

• Ability to collaborate and to convey complex technical concepts to both technical and non-technical stakeholders

The Team

Xpanse helps protect some of the world’s most important organizations by finding risks on the Internet that no one else can find. Your expertise will help define and secure the perimeters of the world's largest and most consequential organizations in both the public and private sector.

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 $157,200 - $254,100/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 accommodations@paloaltonetworks.com.

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.

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.