Information System Security Engineer

MANTECH seeks a motivated, career and customer-oriented Information System Security Engineer (ISSE) to join our team in Chantilly, VA.Responsibilities include but are not limited to:Maintaining, updating, and configuring logging/auditing tools across Sponsornetworks and ensuring all network defense capabilities are kept current, patched, and securely configuredDesigning, testing, and integrating new security products as directed. Beta testing new capabilities when directed, and conducting software testing asrequiredMaintaining a robust library of documentation, to include network diagrams for cyber defense capabilities and sensors, and making documentation available to all personnel with appropriate need-to-knowProviding engineering support for all primary systems, such as network-based intrusion detection/preventionMaintaining, updating, and conducting routine vulnerability scanning across all Sponsor networksEnsuring all parts of the infrastructure are in compliance with patching/hardeningrequirements.Maintaining system baselines and configuration management items, including security event monitoring policies.Analyzing data flows into, out of, and across Sponsor networks to identify and rectify any security gapsMinimum Qualifications:Bachelor’s degree and at least 3 years of experience with Risk Management Framework, JSIG, or similar security frameworksDepartment of Defense (DoD) 8570 Compliant, IAT Level III within 6 months ofhire dateExperience with Splunk continuous monitoringMust have the ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel, and industry partners.Strong Analytical and Critical Thinking Skills, Interpersonal and People Skills,Leadership Skills, Listening Skills, Multi-Tasking Ability, Communication Skills,Organizational Skills, and Presentation Skills.Preferred Qualifications:Experience with STIGs, EvaluateSTIG, ACAS, NESSUS, and other vulnerability compliance verification tools.Experience with scripting languages (PowerShell), application development(Java, Perl, Python, .NET), databases and analytical toolsExperience with security and operational related use cases is desiredExperience with Microsoft and VMware environmentsExperience with Linux systems administration.Clearance Requirements:Must have an active DoD TS/SCI with the ability to obtain a polygraph.Physical 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