Sr. Information Systems Security Engineer ACTIVE TS/SCI CIP REQUIRED
On-siteManassas, Virginia, United States
Job Summary
Conduct technical security assessments of computing environments to identify vulnerabilities, compliance gaps, and recommend mitigations. Architect innovative solutions for Cyber Threat and Defensive Operations while automating threat assessment, posture reporting, and system monitoring activities. Provide functional expertise and technical recommendations to ISSOs, ISSEs, and ISSMs, acting as a technical lead to mentor engineers and elevate team capacity. Mitigate or recommend acceptance of identified risks during certification, testing, or operational reviews, ensuring alignment with DoD cybersecurity policies and standards. This role requires an active Top Secret with SCI clearance and 8–12 years of experience. Full-time onsite work is required at the client location in Lorton, VA, with up to 10% travel.
Required Qualifications
- Active TOP SECRET with SCI level clearance
- IAT/IAM/IASAE Level III (DoD 8570 compliant) certification
- Advanced Skills in Active Directory (AD DS, ADFS, AD CS, WSUS)
- Advanced Skills in ePO, Splunk, STIG/SCAP, YUM, ACAS automation
- Advanced Skills in Azure VPN Gateways, Azure Monitor/Log Analytics
- Advanced Skills in SAP systems security
- Advanced Skills in GPOs
- Advanced Skills in SQL Server STIG hardening
- Proven, day-one depth of knowledge across ePO, ACAS, and Splunk
- Ability to build systems from scratch
- Troubleshooting experience with the deployment and maintenance
- Understanding of how the tools are different when they move to hyperscale
- Ability to lead, guide and mentor the other Information System Security Engineers
- Network compliance regulations knowledge
- Experience with Compliance & Frameworks (NIST, JSIG/RMF, SCTM)
- Experience with Hyperscale, Architecture and Integration
- Automation & Reporting experience
- Ability to continuously improve processes and team velocity
- Ability to communicate complex security concepts to non-technical stakeholders
- 8–12 years of demonstrated performance in related technology areas
- Bachelor's degree in Computer Science, Engineering, or related field and 3+ years of leadership experience OR equivalent professional experience
- Must be within driving distance of Lorton, VA OR willing to relocate there
- Must be willing to work onsite
- Must be willing and able to travel up to 10%
- Must possess an active TS/ SCI clearance or above
- U.S. citizenship status
- DoD 8570 Level III compliant certification
- Excellent communicator in writing and speaking
- Ability to work independently but also value teamwork
- Excellent problem-solving skills
Desired Qualifications
- 5+ years leadership experience in a related technical or cybersecurity area
- Technical certifications in Microsoft Azure or related cloud technologies
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