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 Senior In formation System Security Engineer (ISSE) to join our team in any of the following locations: Washington DC, Chantilly VA, or Quantico, VA . This position is fully on-site.

Basic Qualifications:

• Bachelor’s plus minimum 8 years’ experience, or equivalent education/experience; Doctorate plus 6 years; Master’s plus 6 years; Associates plus 10 years; or H.S./GED plus 14 years.

• Hold at least one of the following certifications: Certified Information Systems Security Professional (CISSP) (or Associate), CompTIA Advanced Security Practitioner (CASP) CE, Certified Secure Software Lifecycle Professional (CSSLP), CISSP- Information System Security Engineering Professional (ISSEP), or CISSP- Information System Security Architecture Professional (ISSAP). At least one IASAE Level II or IASAE Level III proficiency .

• Familiarity with the use and operation of security tools including: Tenable Nessus and/or Security Center, IBM Guardium, HP WeblInspect, Network Mapper (NMAP), and/or similar applications.

• Experience with Amazon Web Services (AWS) or Microsoft Azure.

Preferred Qualifications:

• Degree in Computer Science, Cybersecurity, or other cyber discipline.

Security Clearance Requirements:

• Applicants must have an active Top Secret security clearance with eligibility to obtain SCI (to start). Applicants will be required to undergo a CI Polygraph (eventually).

Responsibilities include, but are not limited to:

• Identify information protection needs for an IS and Network Environment.

• Define IS and Network Environment security requirements in accordance with applicable cybersecurity requirements.

• Set up scheduled and ad-hoc scans/reports, and configure, maintain, and use various information security assessment tools.

• Work with system and network POCs on remediation guidance, to assist with staying in compliance with defined remediation timelines.

• Design security architectures for use within the IS and Network Environment.

• Design and develop cybersecurity-enabled products for use within an IS and Network Environment.

• Integrate and/or implement security with Cross Domain Solutions (CDS) for use within an IS and Network Environment.

• Develop and implement security designs for new or existing network system(s). Ensure that the design of hardware, operating systems, and software applications adequately address cybersecurity requirements for the IS and Network Environment.

• Design, develop, and implement network security measures that provide confidentiality, integrity, availability, authentication, and non-repudiation.

• Design, develop, and implement specific cybersecurity countermeasures for the IS and Network Environment.

• Develop interface specifications for the IS and Network Environment.

• Develop approaches to mitigate IS and Network Environment vulnerabilities and recommend changes to network or network system components as needed.

• Ensure that network system(s) designs support the incorporation of FBI directed cybersecurity vulnerability solutions.

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

. 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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