Senior Security Engineer - Threat Detection

Stack

Responsibilities

• ▹Build, deploy and continuously improve MITRE ATT&CK-aligned detections across cloud, endpoint, identity, email and application telemetry, with clear false-positive thresholds
• ▹Own the full detection lifecycle: hypothesis, data validation and baselining, deployment, tuning, validation and retirement
• ▹Advance the detection-as-code platform through version control, peer review, automated testing, CI/CD and improved pipeline reliability and observability
• ▹Identify emerging threat surfaces and build integrations that strengthen data ingestion, enrichment and coverage across internal and third-party systems
• ▹Evaluate AI-powered security capabilities, including secure MCP integrations, threat hunting, anomaly detection and response automation
• ▹Turn threat intelligence into actionable detection and retrospective scanning
• ▹Partner closely with Security Operations during investigations, incidents, tabletop exercises, detection maintenance and code pairing
• ▹Champion and embed Samsara's cultural principles as the company scales

Requirements

• ▹6+ years in security engineering, detection engineering or a related technology discipline
• ▹Strong Python and SQL skills, with experience analyzing large datasets to build and validate detections
• ▹Hands-on experience with detection-as-code, Git-based workflows, automated testing and CI/CD deployment
• ▹Deep experience with modern SIEM platforms, including data onboarding, advanced queries, dashboards and threat intelligence enrichment
• ▹Working knowledge of AWS, Linux, containers and EDR
• ▹Proven ability to build systems from scratch, lead projects independently, learn new technologies quickly and communicate technical concepts clearly through documentation, RFCs and presentations
• ▹Must reside in the US (excluding the San Francisco Bay, NYC and Washington, D.C. metro areas)

Nice to have

• ▹Experience with data orchestration platforms such as Airflow or Databricks
• ▹Applied experience with LLMs, agentic frameworks and MCP integrations, including their security risks and failure modes
• ▹Experience with behavioral analytics, anomaly detection, feature engineering and model evaluation
• ▹Familiarity with risk-based alerting, ChatOps, distributed alerting and attack simulation
• ▹Additional experience with Go, Terraform, malware analysis, digital forensics or FedRAMP environments

Soft skills

What we offer

• ▹Initial RSU grant with no vesting cliff and ongoing refresh opportunities tied to performance
• ▹Performance-based bonus/variable pay
• ▹Flexible, employee-led remote model
• ▹Professional development stipend
• ▹Comprehensive health and parental leave plans

About the company

Samsara (NYSE: IOT) pioneered the Connected Operations Cloud, an IoT platform that gives physical-operations industries actionable insights from their data.