Sr. Principal Machine Learning Engineer

Qualifications

• Your Experience
• BS/MS in Computer Science, Cyber Security, or equivalent practical experience.
• 4+ years of dedicated experience in detection engineering, threat analysis, or security research.
• Deep expertise in writing and optimizing signature-based patterns (e.g., custom Snort/Suricata rules, Yara, PAN-OS custom threat signatures).
• Thorough understanding of application-layer evasion techniques.
• Strong knowledge of the detection-as-code philosophy and building automated testing pipelines for signature validation.
• Experience with Python, Regex, or other scripting tools to automate packet capture analysis, rule creation, and parsing threat telemetry.
• Solid understanding of the MITRE ATT&CK framework and translating offensive techniques into robust defensive controls.
• The Team We believe collaboration thrives in person. That’s why most of our teams work from the office full time (3 days a week at our Santa Clara headquarters), with flexibility when it’s needed. This model supports real-time problem-solving, stronger relationships, and the kind of precision that drives great outcomes.
• 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/com-missioned roles) is expected to be the annual range listed below. 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 trailblazers that dream big, take risks, and challenge cybersecurity’s status quo. It’s simple: we can’t accomplish our mission without diverse teams innovating, together.