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ManTech Principle Information System Security Officer (ISSO) in Dallas, Texas

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 Principle ISSO to join our team in Dallas, TX.

Responsibilities include, but are not limited to:

  • Ensures AIS and network nodes are operated, maintained, and disposed of in accordance with security policies and practices.

  • Perform Information System Security Officer (ISSO) duties in support of in-house and external customers. Also, perform duties as the alternate Information Systems Security Manager (ISSM).

  • Duties include, but are not limited to reviewing and developing AIS accreditation/ certification support documentation; notifying the customer when changes occur that might affect AIS accreditation/certification

  • Performing system and network self-inspections; providing security coordination and review on all system test plans; attending system IPT and CCRB meetings

  • Identifying AIS vulnerabilities and implementing countermeasures; representing the customer on various technical review teams

  • Conducting security surveys at subordinate facilities and gathering pertinent security documentation for inclusion into system accreditation packages

  • Coordinating, preparing and tracking AIS inspections, reports and responses; maintaining AIS security records

  • Advising on and preparing Co-utilization Agreements for network nodes operating in subordinate government and contractor facilities

  • Receiving direction from the ISSM and government PSO.

  • May provide work leadership for lower level employees and customer.

Basic Qualifications

  • 7 – 9 years of experience

  • Must be knowledgeable of the Department of Defense (DoD) information system security compliance and implementation guidance. Specifically, NIST Risk Management Framework (RMF), DISA Security Technical Implementation Guides (STIG)

  • DoD 8140/8570 certification for IAM Level II (CAP, CASP+CE, CISM, CISSP (or Associate), GSLC or CCISO)

  • Ability to handle stress and work well under pressure

  • Ability to use MS Office, Ability to use PC, Interpersonal and People Skills, Listening Skills, Multitasking

  • Ability, Oral and Written Communication Skills, Organizational Skills


B.S. in electrical or computer engineering, or equivalent from an accredited institution

Security Clearance Requirements: Active Top Secret

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.

  • Often positions self to maintain computers in the lab, including under the desks and in the server closet.

  • Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

  • May be asked to move Audio/Visual or Computer equipment

  • Must be able to lift to shoulder height and move items, like servers, computers, racks, up to and over 25 pounds with varying dimensions.

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.

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