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 will help protect our national security while working on innovative projects that offer opportunities for advancement.

ManTech is seeking a motivated, career and customer-oriented Principal Information System Security Engineer (ISSE) to join our team in Chantilly, VA.

Responsibilities include, but are not limited to:

• Provide support to the implementation and maintenance of IT system infrastructure supporting sensitive operations related to national security

• Execute system or network designs that encompass multiple enclaves, to include those with differing data protection/classification requirements

• Provide security planning, assessment, risk analysis, and risk management

• Recommend system-level solutions to resolve security requirements

• Support the Government in the enforcement of the design and implementation of trusted relationships among external systems and architectures

• Design and implement security related products on an enterprise level, and integrate into current environment

• Participate in the change management process, including reviewing Change Requests and assisting in the assessment of security impact of proposed changes

• Monitor system recovery processes to ensure security features and functions are properly restored and functioning correctly following an outage

• Work on project teams responsible for engineering and packaging releases to integrate within the customer's production IT environment

Basic Qualifications:

• Bachelor’s degree (IT, Cyber Security, Computer Science, Information Systems Management, Engineering, or similar field of study)

• 7+ years’ experience with information networks and related security concerns; or a Master's degree with 5+ years’ experience

• DoD 8570.1 / DoD 8140.01 (IAT III Level) certification required, CISSP is preferred

• Experience designing and implementing enterprise IT/IA solutions.

• Experience using various IA tools in audit collection, audit review, audit management, and end point protection (HBSS, McAfee ePO, ENS, DLP)

• Experience with Splunk, RHEL 7+, ACAS, Tenable

• Experience with security efforts related to modern Windows, Linux, UNIX, Cisco, SQL or Oracle databases, and virtualized systems.

Preferred Qualifications:

• A background and some experience with RMF, ICD 503, NIST SP800-53 or DCID 6/3, or knowledge of current authorization practices, particularly within the DoD is desired.

• Splunk Enterprise Architect certification with implementation and dashboard creation experience highly desired.

• Experience performing duties as a DTA.

Security Clearance Requirements:

• US Citizenship and active Top Secret clearance adjudicated within the last 6 years

• Willing to submit to a random polygraph

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.

• 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.

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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