Information System Security Engineer (ISSE) with Security Clearance

Position Title: Information system Security Engineer (ISSE)
Location: Chantilly, VA
Clearance: Active TS/SCI required
U.S. Citizenship required OMNI Consulting Solutions is seeking for Information system Security Engineer to provide technical cybersecurity expertise supporting system design, architecture reviews, security controls implementation, risk assessments, and accreditation efforts throughout the system lifecycle.

Key Responsibilities

• Provide cybersecurity engineering support throughout the system development lifecycle, from design through accreditation.
• Support system architecture reviews to ensure security controls are appropriately designed and implemented.
• Assist in the selection, implementation, and testing of technical security controls in accordance with RMF/CNSSI 1253.
• Conduct or support technical risk assessments and vulnerability analyses of system designs and configurations.
• Develop and review technical security documentation in support of the accreditation package (SSPs, security architecture diagrams, control implementation statements).
• Collaborate with system engineers, developers, and the ISSM/ISSO to integrate security requirements into system builds.
• Support security testing activities, including control assessments and penetration/vulnerability testing coordination.
• Recommend technical solutions to remediate identified security weaknesses or POA&M items Job requirements
• Bachelor's degree in a technical field (Computer Science, Computer Engineering, Cybersecurity, or related).
• Active TS/SCI clearance.
• Experience (10+ years) in cybersecurity engineering, systems security architecture, or related technical security roles.
• DoD 8570/8140 IAT Level III or IASAE certification (e.g., CISSP, CASP+, or equivalent).
• Strong technical knowledge of network, system, and application security architecture and controls.
• Experience supporting RMF control implementation and technical accreditation activities.

Preferred Qualifications

• CI polygraph.
• Experience with cloud, cross-domain, or enterprise IC/DoD system architectures.
• Hands-on experience with security engineering tools (vulnerability scanners, SIEM, configuration management tools).
• Master's degree in a related technical field. Why Join OMNI?

OMNI Consulting Solutions is a boutique consulting firm specializing in creating game-changing value and simple solutions for complex demands. OMNI is built on the idea that change moves the world forward, and through creative and entrepreneurial leadership OMNI maintains a bold reputation within the DoD/Aerospace community and across the various other industries we support. As an OMNI employee, you can be assured of extensive growth opportunities, inordinately competitive salary compensation packages, and the unparalleled support of the OMNI family. We are an equal-opportunity employer, and our benefits packages are designed to meet the needs of all our employees and dependents:

• Medical Coverage
• Dental Benefits
• Vision Benefits
• Life Insurance
• 401(k) Retirement Plan with Employer Matching
• Fully Vested on Day 1 of Employment
• Paid Time Off & Sick Leave
• Company Sponsored Social Events