Secure our Nation, Ignite your Future

Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

Currently, ManTech is seeking a motivated, career and customer-oriented Information Sr. Systems Security Officer (ISSO) to join our team in the Herndon/Chantilly, VA locations.

As the Sr. ISSO, you will work under the direction of the Information Systems Security Manager (ISSM). This is a multi-tasking environment that demands customer service, communication, and organizational skills. A successful candidate will be motivated, results-oriented and have a willingness to learn. The Sr. ISSO will maintain the operational security posture to ensure information systems (IS) security policies, standards, and procedures are established and followed.

Responsibilities include, but are not limited to:

• Develop supporting documentation and apply standards, directives, guidance, policies, and security control to classified computing environments in support of Intelligence Community Directive (ICD) 503
• Utilizing one or more Risk Management Framework implementation methods to include but not limited to; JSIG, CNSSI 1253, NIST SP 800-53, NIST SP 800-171, DoDM-5220-22 (NISPOM)
• Ability to obtain and maintain customer system accreditations through the System Development Life Cycle (SDLC)
• Prepare and review documentation to include System Security Plans (SSPs), Risk Assessment Reports (RAR), Security Controls Traceability Matrix (SCTM), and other Assessment & Authorization (A&A) artifacts
• Performs vulnerability/risk assessment analysis to support Assessment & Authorization (A&A)
• Conduct Independent scans of the application, network, and database with tools such as Nessus, DISA STIGS compliance check and SCAP (SCC)
• Ability to research and address information security issues as required, and develop and maintain the Plan of Action and Milestones (POA&M) and support remediation activities
• Provide continuous monitoring, security reviews, and technical inspections to enforce security policies, controls and procedures and mitigate identified vulnerabilities and weaknesses
• Create processes and reports that will provide oversight into continuous monitoring and assessment activities for the system owner, ISSM and ManTech management
• Provide configuration management and accurately assess the impact of modifications and vulnerabilities to system components
• Maintain inventory of system software, hardware, and firmware
• Develop, coordinate, test, and train on Contingency Plans and Incident Response Plans, and support Incident Response and Contingency activities
• Responsible for conducting system account management, training tracking and audit log reviews and recording and reporting results
• Provide direction and guidance to other employees with regard to computer security issues via security education and awareness, conduct Information Systems Security briefings, participate in self-inspections and audits, and investigate security incidents
• Ad hoc duties as assigned.

Experience and Education:

• 4+ years of ISSO experience
• DoD Directive 8570-01-M – Cyberspace Workforce Management compliant certification: Information Assurance Management (IAM) Level I
• CompTIA CASP+CE, ISC2 CAP, or ISC2 CISSP preferred
• Bachelor’s degree in Computer Science, or cyber/security related discipline preferred

Security Clearance Requirements:

• Must current possess an active Top-Secret SCI and able to obtain CI Poly

Physical Requirements:

• Must be able to remain in a stationary position 50%
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer
• Frequently communicates with co-workers, management and customers, which may involve delivering presentations

Must be able to exchange accurate information in these situation

For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access