Information System Security Engineer

SAIC - Information System Security Engineer in McLean Virginia United States

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Job ID: T2600313 Location: McLean, VA, United States Date Posted: Mar 8, 2026 Category: Cyber Subcategory: Cybersecurity Spec Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: TS.SCI_wPoly Clearance Level: Must Be Able to Obtain: None Potential for Remote Work: On-Site Benefits: Click here Share mail Apply Now > Apply Now >

Job Description

SAIC is seeking an Information System Security Engineer (ISSE) to provide information security support. This position is in McLean, VA, and requires an active TS/SCI clearance with Polygraph. This Customers office is the force of choice for the development of global infrastructure and delivery of solutions that drive influence operations. If you have specialized skills in information security and tech ops, this is the role for you.

Job responsibilities include but are not limited to:

• Support the Lifecycle Assessment and Authorization (A&A) process.
• Develop a Systems Security Plan (SSP).
• Assist and maintain a formal Information Security Program that includes recommendations on continuous improvement of the processes and architectures.
• Maintain and make accessible documentation of all operational and business process activities in the form of Standard Operating Procedures (SOPs).
• Monitor and track projects in the A&A queue.
• Analyze SSPs to develop an understanding of the customers systems and applications.
• Coordinate A&A actions and system testing with appropriate security personnel.
• Develop risk assessments, recommend mitigating countermeasures, and write short, succinct risk assessments and certification reports for submission to the Chief Information Officer (CIO).
• Monitor and track projects in the A&A queue.
• Maintain a document repository where A&A project documentation is stored and recorded, and register actions concerning project approvals to operate in the A&A database.
• Assemble and submit A&A packages to the Principal Accreditation Authority or Designated Accreditation Authority.
• Review and approve product requests for procurements.
• Provide security guidance in terms of policy and technical implementation of those policies.
• Produce and assist with production of technical artifacts required for A&A packages, such as a System Security Plan, Audit Strategy, Configuration Management Plan, Security Controls Traceability Matrix, Project Plan of Action and Milestones.
• Monitor and address cyber risks, such as malware zero-day attacks, denial of service attacks, as well as associated mitigations regarding computer and network devices.

Qualifications

• Active TS/SCI with Polygraph.
• Bachelors degree and 14 years or more experience.
• Masters degree and 12 years or more experience.
• PhD and 9 years or more experience.
• CISSP Certification.
• Demonstrated experience with:
• Computer networking in Windows and Linux.
• Website configuration.
• Basic software development knowledge.
• Eliciting information on complex technical problems from non-technical personnel for use in diagnosis, analysis, resolution of problems.
• Customer regulations and standards, including Information Security (INFOSEC) and Communications Security (COMSEC).
• Managing security aspects of deployed infrastructure and technical solutions.

Desired Skills

• Demonstrated experience with Rapid7 WebInspect, AppDetective, CIS-CAT, and other vulnerability assessment tools and processes.
• Information security certifications, such as CISSP, CISSE, CISA, CEH, CCSP, etc.
• Demonstrated experience with computer and network vulnerabilities, e.g., malware zero-day attacks, denial of service attacks, etc.

Overview

SAIC accepts applications on an ongoing basis, and there is no deadline. SAIC is a premier Fortune 500 mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense space, civilian, and intelligence markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology rapidly and securely into mission-critical operations that modernize and enable critical national imperatives. We are approximately 24,000 strong, driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.5 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

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