ManTech International

Information System Security Officer

ManTech International$99K — $165K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience in cybersecurity, preferably as an ISSO in government/DoD settings.
  • Strong knowledge of Windows and Linux OS, networking basics, and cybersecurity tools.
  • Experience in continuous monitoring and conducting audits for security compliance.

Responsibilities

  • Lead documentation and coordination for annual A&A with government assessors.
  • Develop and maintain system security plans (SSPs) and RMF documentation for ATO processes.
  • Conduct internal audits to ensure compliance with security standards.
  • Advise system administrators on the implementation of security controls.
  • Oversee vulnerability management, ensuring timely security updates.
  • Collaborate with CSOC during incident response to support security operations.
  • Create and update security policies and training materials to enhance security awareness.

Benefits

  • Health Insurance
  • Life Insurance
  • Paid Time Off
  • Holiday Pay
  • Short-term and long-term Disability
  • Retirement and Savings options
  • Learning and Development opportunities
  • Wellness programs and optional benefits.
Full Job Description
MANTECH seeks a motivated, career and customer-oriented Senior Information System Security Officer (ISSO) to join our team in Fairmont, WV.

In this critical full-time role, you will be responsible for the overall cybersecurity posture of a large-scale government enterprise. As a senior member of the team, you will serve as the principal advisor on all matters related to information systems security and compliance, ensuring that a government cybersecurity center maintains authorization to operate (ATO) and maintains a strong security posture against evolving threats.

Responsibilities include but are not limited to:
  • Lead the preparation of documentation and coordination with government and technical staff for annual A&A's performed by government assessors.
  • Lead the development, maintenance, and oversight of system security plans (SSPs) and other RMF documentation required for system accreditation and authorization to operate (ATO).
  • Conduct continuous monitoring and internal audits to ensure compliance with government security standards and policies.
  • Advise and assist system administrators and engineers in the implementation and management of security controls.
  • Oversee the vulnerability management program, ensuring security patches and vulnerability mitigations are implemented in a timely manner.
  • Collaborate with the Cybersecurity Operations Center (CSOC) and other security teams during incident response efforts, providing expertise on system security and controls.
  • Develop and update security policies, procedures, and training materials to promote a culture of security awareness.


Minimum Qualifications:
  • 5+ years of experience as an ISSO or in a similar cybersecurity role, with a strong background in government or DoD environments.
  • In-depth knowledge of Windows and Linux operating systems, networking, and common cybersecurity tools.
  • Continuous monitoring and internal auditing experience.


Preferred Qualifications:
  • Professional certifications such as CISSP, CISM, or Security+ are preferred.
  • Extensive experience with the NIST Risk Management Framework (RMF) and other security control standards preferred.


Clearance Requirements:
  • Must be a U.S citizen with a current/active Top Secret clearance.


Physical Requirements:
  • Must be able to remain in a stationary position 50% and constantly operate a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.


The projected compensation range for this position is $99,500.00-$165,900.00. 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 its 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.

About ManTech International

ManTech International Corporation is an American defense contracting firm that was founded in 1968. The company provides cybersecurity, intelligence, and defense solutions to the United States Government. ManTech has over 9,000 employees and operates in 40 countries worldwide. The company's services include software development, systems engineering, and enterprise IT solutions. ManTech has been awarded numerous contracts by the U.S. Department of Defense and other government agencies.
Learn more about ManTech International
Size
9,800 employees
Market Cap
$3.7 billion
Industry
Net Income
$120.5 million
Founded
1968
5 Year Trend
+9.8%
Revenue
$2.5 billion
NASDAQ

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