Principal Software Engineer, AI SIEM

The role

You will reason across all three layers of the AI SIEM, including data movement, analyst workflows, and detection engines. You will drive cross-team architectural decisions and identify high-leverage investments to close system gaps.

What you will do

• Build a working mental model of the full system to identify architectural gaps or redundancies.
• Drive cross-team architectural decisions affecting multiple parts of the system.
• Partner with engineering leads of each pillar as a peer thought partner.
• Identify and prioritize high-leverage architectural investments.
• Prototype, review, and build connective tissue between pillars.
• Establish and champion cross-cutting technical standards for APIs and data contracts.
• Mentor senior and staff engineers across teams.
• Represent technical health of the overall system in planning and leadership conversations.

Required qualifications

• 15 or more years experience building and operating large-scale distributed backend systems.
• Direct experience in at least two of: high-throughput data ingest/storage, query engines, or detection/rules systems.
• Demonstrated track record of reasoning about systems at the architecture level.
• Experience designing APIs and service contracts.
• Comfort operating without a single clear chain of command.
• A four-year degree in Computer Science or equivalent practical experience.

Nice to have

• Familiarity with security operations concepts (alerts, findings, assets, incidents, detection rules)
• Experience with modern cloud infrastructure and data-intensive systems (distributed storage, high-cardinality querying, streaming pipelines)
• Exposure to both rule-based and ML/AI-driven detection approaches

Benefits

• Restricted Stock Units (RSUs)
• Employee Stock Purchase Plan (ESPP)
• Flexible time off
• Paid company holidays and paid sick time
• Gender-neutral parental leave
• Grandparent leave
• Medical, dental, and vision coverage
• 401(k) retirement plan with company match
• Life and disability insurance
• Health and dependent care FSA
• Voluntary benefits (hospital, accident, critical illness)
• Employee Assistance Program (EAP)

About the company

SentinelOne is a company at the intersection of AI and security, pioneering a new operating model for cybersecurity. Their AI-native platform unifies protection across endpoint, cloud, identity, data, and AI systems.