Senior Security Engineer

Position Description

Ardent is seeking a Senior Security Engineer to support security engineering, SIEM administration, and detection optimization within a Virtual Security Operations Center (vSOC) environment. This role focuses on Microsoft Sentinel administration, detection rule development, and log management to ensure effective threat detection and response. The engineer will work closely with stakeholders to enhance visibility, improve security posture, and support vulnerability and patch management efforts. This position requires deep technical expertise in security engineering, SIEM platforms, and modern enterprise security tools within a secure, compliance-driven environment.

Responsibilities and Duties

• Administer and maintain Microsoft Sentinel, including configuration, performance tuning, and platform optimization.
• Develop, tune, and maintain detection rules and analytics to improve threat detection capabilities.
• Write and optimize KQL queries for threat detection, investigation, and reporting.
• Validate log ingestion and ensure completeness and accuracy of data sources.
• Support onboarding and normalization of log sources across enterprise systems.
• Coordinate vulnerability prioritization and support patch governance efforts.
• Serve as a technical liaison with stakeholders to align security operations with mission needs.
• Support incident response efforts through engineering support and tool optimization.
• Document engineering processes, detection logic, and system configurations.
• Collaborate with SOC analysts and detection engineers to improve detection coverage and response efficiency.

Requirements

• Deep technical expertise in security engineering, SIEM platforms, and modern enterprise security tools within a secure, compliance-driven environment.