Principal Cybersecurity Engineer
Core
Lead the design, implementation, and continuous improvement of enterprise-wide protections for email, data, and endpoint platforms to reduce risk and strengthen resilience.
Role type
Principal Cybersecurity Engineer (Strategic IC)
Builds
Enterprise security controls and strategies for email, data, and endpoint platforms
Domain
Cybersecurity / Enterprise Information Security
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure
Required skills
Microsoft Defender for Office 365 (policy design, anti-phishing, threat investigation), Microsoft Defender for Endpoint (EDR, Advanced Hunting, detection engineering), Microsoft Purview (Information Protection, DLP, eDiscovery), enterprise security strategy definition, complex incident response and root-cause analysis, technical standards and playbook authoring
Preferred skills
SIEM, SOAR, threat intelligence platforms, cloud security controls, independent execution
Technologies
Microsoft Defender for Office 365, Microsoft Defender for Endpoint, Microsoft Purview, SIEM, SOAR
Responsibilities
Establish and maintain enterprise-wide architecture and control decisions for security platforms; analyze threat trends and telemetry to tune protection strategies; lead complex investigations and high-severity incidents; collaborate with IT and business teams to embed security into operations; develop technical standards, reference architectures, and playbooks; provide mentorship to engineers and practitioners
Seniority
Principal, strategic authority with hands-on technical depth
