Senior Principal Cyber Security Engineer

ManTech seeks a motivated, career and customer-oriented Senior Principal Cyber Security Engineer to join our team in the Chantilly, VA.Responsibilities include but are not limited to:Troubleshoot new and current data collection issuesTroubleshoot system issues that make the system unstable or unusable.Deploy and manage all supported and unsupported Splunk Add-ons that are required for specific data sourcesProvide documentation such as body of evidence documents (as needed), engineering documents, change management documents, system security plans, and accreditation documentsDeliver a comprehensive Splunk deployment document to detail the specifications, deployment methods, and other architectural considerations to the production environment.Maintain a strict role-based access control solution around the data collected, to provide a need-to-know abilityForward Configurations and Deployments: Design and deploy forwarders rapidly with centralized configuration management (Splunk Deployment Server).Minimum QualificationsBachelor's degree or 4+ additional years of cyber experience in lieu of degree10+ years of experience in a cyber roleExperience with Security Information and Event Management (SIEM) platforms, and/or SplunkKnowledge of Linux systems administration, general operating system security practices, TCP/IP networking, and network security conceptsKnowledge of Certification & Accreditation processesKnowledge of DoD policy and technical security guidance to information systemsDoD Directive 8570.1 IAT Level II or higher certification or ability to obtain within 6 months.Splunk Certification is requiredPreferred Qualifications:Experience with Linux, Red Hat and CentOSExperience with AWS or other cloud environmentsKnowledge of ICS 500-27 for Audit collection requirementsKnowledge of Enterprise Security Services, Host Base Security Service, Enterprise Vulnerability Scanning Service, and UAMAbility to modify feed creation to ingest customer logs in a standard format to meet policy requirements.Security Clearance Requirements:Must have a current/active TS/SCI w/PolygraphPhysical Requirements:The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

Created: 2025-06-14