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CACI International Security Systems Engineer in Reston, Virginia

Job Description

What You’ll Get to Do:

In this role as a Security Systems Engineer your responsibilities will include:

  • Serving as the organization’s focal point to guide projects through ICD 503 Assessment and Authorization (A&A) efforts, as well as System Security Plan (SSP) creation, maintenance, and re-accreditation.

  • Maintaining all security-related documentation for all systems including, but not limited to body of evidence, Plan of Action and Milestones (POAM), Certification and Accreditation (C&A) documentation leveraging on-line record keeping systems.

  • Establishing and maintaining strong relationships with the organization’s Information Systems Security Managers (ISSM), seeking guidance for approval as needed.


  • Manage enterprise systems, from inception to deployment, using the ICD 503 Risk Management Framework (RMF) six step workflow.

  • Navigate projects through the RMF process to achieve ATD, IATT, and ATO.

  • Write NIST 800-53 Rev 4 responses to security controls to include inherited, shared, or system level controls.

  • Request and analyze Nessus, AppDetective, and WebInspect scans when required for assessment or to be FISMA compliant.

  • Mitigate the risk elements (formerly POAMs) identified during assessment and seek validation from CAD and ISSM depending on level of risk element.

  • Facilitate and attend TEMs with engineers and other partners to gather requirements for project registration and control implementation.

  • Document, maintain, and communicate assessment and authorization status of all projects.

  • Support weekly and ad hoc reporting requirements.

  • Lead the annual resiliency testing exercise for an enterprise system. Preparation includes communications with multiple high visibility mission partners.

  • Create and maintain the resiliency documentation to include a Resiliency Test Validation Plan, Contingency Plan, and After Action Report.

You’ll Bring These Qualifications:

  • Strong understanding of information systems security and how to translate ICD 503 requirements into organizational needs.

  • Knowledge of the Xacta 360 Tool to navigate projects through the RMF process to achieve ATD, IATT, and ATO.

  • Understanding of the Information Management Office and Continuity for IT (CFIT) roles in the RMF.

  • Solid communication skills both verbal and written.

These Qualifications Would be Nice to Have:

  • Project Management

Education and Experience Requirements:

Candidate must have one of the following:

  • 12 Years of job related experience and High School/GED diploma

  • 10 Years of job related experience and Associate degree

  • 8 Years of job related experience and Bachelor’s degree

  • 6 Years of job related experience and Master’s degree

  • 4 Years of job related experience and Doctorate


  • Certified Information Systems Security Professional (CISSP)

  • Certification & Accreditation Professional (CAP)

Work Hours: Core Hours 9:00 - 5:00

Location: Herndon, VA

What We Can Offer You:

  • We’ve been named a Best Place to Work by the Washington Post.

  • Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives.

  • We offer competitive benefits and learning and development opportunities.

  • We are mission-oriented and ever vigilant in aligning our solutions with the nation’s highest priorities.

  • For over 55 years, the principles of CACI’s unique, character-based culture have been the driving force behind our success.

EIT_Intel Mission

Job Location


CACI employs a diverse range of talent to create an environment that fuels innovation and fosters continuous improvement and success. At CACI, you will have the opportunity to make an immediate impact by providing information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. CACI is proud to provide dynamic careers for employees worldwide. CACI is an Equal Opportunity Employer - Females/Minorities/Protected Veterans/Individuals with Disabilities.