Senior Security Engineer - Detection Engineering

Responsibilities

• Implement and tune detection content across SIEM/XDR/EDR and cloud telemetry; measure precision/recall, latency, lift, and signal-to-noise ratio.
• Build detections-as-code with version control, CI/CD, unit/integration tests, staged canary rollouts, and safe rollback.
• Author and maintain SIGMA rules; translate SIGMA to KQL/SQL as needed.
• Integrate multi-cloud telemetry: Azure (Activity/Diagnostics), AWS (CloudTrail, GuardDuty), GCP (Cloud Audit Logs, SCC).
• Operationalize Microsoft Defender XDR and Sentinel signals; leverage Entra ID controls (Conditional Access, sign-in risk).
• Proactive threat hunting; create hunt playbooks and convert findings into detections.
• Build IR automation (SOAR/Logic Apps) for triage, enrichment, containment, and case workflow; integrate with ticketing/chat ops.
• Operationalize threat intelligence: ingest/normalize IOCs/TTPs, enrich detections with TI context, and turn reports into testable hypotheses.
• Own telemetry quality for assigned pipelines: schemas/normalization (e.g., ASIM/OCSF-like), enrichment, data contracts, reliability SLIs/SLOs.
• Participate in incident retros; add post-incident detections and suppress noisy patterns.
• Participate in on-call for critical detection pipelines and high-severity investigations.

Basic Qualifications

• BA/BS Degree in CyberSecurity, Information Security, Computer Science or related technical discipline, or related practical experience.
• 3+ years in security, detection engineering or incident response.
• Experience building detection content and analytics for SIEM/XDR/EDR and cloud telemetry (Azure/AWS/GCP).
• Experience programming for detections/automation (e.g., Python) and query languages (e.g., KQL/SQL/SPL).
• Experience with detections-as-code (tests, CI/CD, canary/rollback) at scale.
• Experience with attacker TTPs (MITRE ATT&CK) and detection efficacy metrics.
• Experience with schemas/data models (e.g., OSSEM/ASIM-like) and telemetry pipelines.

Preferred Qualifications

• BS and 8+ years of relevant work experience, MS and 7+ years of relevant work experience, or PhD and 4+ years of relevant work experience.
• Operating detections over large-scale, multi-region pipelines.
• Detection testing harnesses, synthetic signal, and adversary emulation at scale.
• Identity/security signals (Entra ID/Okta/SSO), endpoint internals (Windows/Linux/macOS), SaaS logs.
• Applied analytics/ML for anomaly detection or risk scoring with robust evaluation.
• Experience building hypotheses and content for AI-enabled attack patterns; practical use of AI to improve detection workflows.
• Hands-on SIGMA authoring/translation; experience with adversary emulation/purple-team validation.
• Experience with Microsoft Sentinel, Defender XDR, Entra ID; KQL, Python; GitHub Actions/Azure DevOps; Logic Apps; Azure Data Explorer/Kusto
• Experience with Azure Activity/Diagnostics; AWS CloudTrail/GuardDuty; GCP Cloud Audit Logs/SCC

Suggested Skills

• Information Security
• Detection Engineering
• Detection as code
• KQL
• You will Benefit from our Culture
• We strongly believe in the well-being of our employees and their families. That is why we offer generous health and wellness programs and time away for employees of all levels. LinkedIn is committed to fair and equitable compensation practices.
• The pay range for this role is $129,000 to $212,000. Actual compensation packages are based on several factors that are unique to each candidate, including but not limited to skill set, depth of experience, certifications, and specific work location. This may be different in other locations due to differences in the cost of labor.
• The total compensation package for this position may also include annual performance bonus, stock, benefits and/or other applicable incentive compensation plans. For more information, visit https://careers.linkedin.com/benefits.

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