Palo Alto Networks · 2 hours ago
Principal Security Researcher (Machine Learning - Web Security)
Santa Clara, CA
Full-time
Onsite
Senior Level, Lead/Staff
$163K/yr - $263K/yr
2+ years expPalo Alto Networks is a leading cybersecurity company dedicated to protecting digital lives. They are seeking a Principal Security Researcher with expertise in Machine Learning to join their Web Security Research team, focusing on developing AI-powered solutions for detecting online threats.
Cloud SecurityCyber SecurityNetwork SecuritySecurity
Responsibilities
Track and research emerging online threats and innovate new AI-powered automated ways to identify malicious indicators used by malicious websites and URLs
Leverage frontier technologies in ML and AI to build novel detection ML models and algorithms, as well as other data-driven techniques
Design, develop, test, threat prevention and detection systems to protect enterprise customers around the globe
Convert research results and discoveries into real-impact innovative products
Implement and maintain complex software pipelines and data infrastructures with challenging requirements on high quality and performance
Work across teams to deliver production-impact projects
Qualification
Required
Creative thinker and team player with a passion for data-driven security research, and building high quality, complex systems as a part of an incredible research team
Strong Web Security background and expertise in detecting security threats over the Internet, such as, phishing, fraud, botnet, spam
Hands-on experience in applying Machine Learning within the domain of Web Security and building detection models
Knowledge and experience with modern machine learning technique and algorithms (including NLP and OCR), workflows and pipelines to train and build models
Experience with Tensorflow, PyTorch, Vertex AI
Strong engineering skills and ability to fastly learn and adapt to new programming languages and technologies
Strong programming skills in Python and Shell scripting
Must have MS/PhD and 2+ years of relevant industry experience or equivalent military experience required
Strong research, communication and presentational skills
Preferred
Experience with browser and/or email security is a plus
Experience with malware traffic analysis, signature mining, sandboxing is a plus
Experience with crawling infrastructures and security scanners is a plus
Advanced programming skills in JavaScript and Golang is a plus
Experience with developing REST APIs and microservices is a plus
Knowledge and experience with modern databases and Big Data tools, such as ELK stack, MySQL, MongoDB, Redis, Kafka, RabbitMQ, BigQuery, Bigtable is a plus
Knowledge and experience with Docker and Kubernetes is a plus
Experience with cloud computing platforms, such as GCP, AWS, Azure is a plus
Past work experience in early-stage, fast-growth startups is a plus
Past experience on open source projects is a plus
Benefits
Restricted stock units
Bonus
Company
Palo Alto Networks
Palo Alto Networks is a cybersecurity company that offers cybersecurity solutions for organizations.
10001+ employees
H1B Sponsorship
Palo Alto Networks has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (579)
2024 (482)
2023 (341)
2022 (452)
2021 (493)
2020 (235)
Funding
Current Stage
Public CompanyTotal Funding
$65MKey Investors
Icon VenturesLehman HoldingsGlobespan Capital Partners
2012-07-20IPO
2008-11-03Series C· $10M
2008-08-18Series C· $27M
Leadership Team
Helmut Reisinger
CEO EMEA
Nikesh Arora
Chairman CEO
Recent News
2026-01-02
SEC Filings
2025-12-31
2025-12-30
Company data provided by crunchbase