Information System Security Engineer

at ManTech
Published June 22, 2022
Location Chantilly, VA
Category Default  
Job Type Full-time  


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 Information System Security Engineer (ISSE) to join our team in Chantilly, VA.

Responsibilities include, but are not limited

  • Identify information protection needs for an IS and Network Environment.
  • Define IS and Network Environment security requirements in accordance with applicable cybersecurity requirements.
  • 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.

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.
  • Set up scheduled and ad-hoc scans/reports, and configure, maintain, and use various information security assessment tools.
  • Ability to communicate remediation recommendations and timelines to POCs. ​
  • Work with system and network POCs on remediation guidance, to assist with staying in compliance with defined remediation timelines.
  • Experience with Cloud, 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. Applicants may also require undergo a CI 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.
  • 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
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