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Cybersecurity System Security Engineer III
Cybersecurity System Security Engineer III-March 2024
Los Angeles
Mar 28, 2026
About Cybersecurity System Security Engineer III

  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 Cybersecurity System Security Engineer III to join our team in Los Angeles, CA.

  The System Security Engineer’s primary function is working within Special Access Programs (SAPs) supporting SMC and AFSPC acquisition programs. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities to meet NIST Cybersecurity requirements for system assessment & authorization.

  The Cybersecurity System Security Engineer III regularly conduct the following activities:

  Lead a team of System Security Engineers and Certification and Accreditation Analysts responsible for ensuring the customer’s national and international security interests are protected as acquisition systems are designed and tested

  Chair and or Co-Chair customer and SAP community Cybersecurity working groups, participate in SSE IPT reviews

  Perform oversight of the development, implementation and evaluation of information system security program policy; special emphasis placed upon integration of existing SAP network infrastructures

  Provides expert level consultation and technical services on all aspects of Information Security

  Review SSE related designs and provides security compliance recommendations

  Develop and provide Cybersecurity risk management recommendations to the customer

  Provide SSE support for Mission and Training systems design and development

  Assist with development and maintenance of the Program Protection Plan & Cybersecurity Strategy

  Assist with site activation activities and design reviews, to include test & evaluation of systems

  Represent the Government Program Manager in various SSE related working groups, advisory groups, and advisory council meetings

  Work directly with approval/accreditation authorities to obtain systems’ Authorization to Operate

  Experience:

  12 - 15 years total experience, including minimum 8 years’ experience within SCI or SAR environment.

  Minimum 4 years of SAP relevant experience highly desired

  Education:

  Bachelor’s degree or equivalent additional experience (4 years)Certifications:

  Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level 3 and Information Assurance Manager Level 3 within 6 months of the date of hire. CISSP RecommendedSecurity Clearance:

  Current Top Secret Clearance with SCI Eligibility

  Eligibility for access to Special Access Program Information

  Willingness to submit to a Counterintelligence polygraph

  Other Requirements:

  Must be familiar with security policy/manuals and the appropriate ICDs/JAFANs/DOD Manuals and other guiding policy documents

  Full understanding of Risk Management Framework (RMF) and Joint SAP Implementation Guide (JSIG) processes for system accreditation, along with legacy (DITSCAP, DIACAP) processes

  Must have the ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners

  Working knowledge of Microsoft Office (Word, PowerPoint, and Excel)

  Possess a high degree of originality, creativity, initiative requiring minimal supervision

  Willingness to travel within the organizational Area of Responsibility (AOR) (note - could be extensive, and will include both air and ground transportation)

  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 situations.

  The projected compensation range for this position is $119,000-$198,300. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, ManTech invests in it’s employees beyond just compensation. ManTech’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, Short Term and Long Term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

  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 http://www.mantech.com/careers/Pages/careers.aspx as a result of your disability. To request an accommodation please click [email protected] and provide your name and contact information.

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