ManTech International

Information System Security Officer

ManTech International$141K — $236K *
Information Technology
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree with 12+ years of experience OR associate's degree with 15 years OR high school diploma/GED with 20 years of relevant experience.
  • Experience with Xacta, LatteArt, and other sponsor tools.
  • Skilled in managing POAMs, auditing logs, and maintaining secure system inventories.
  • Possession of an IAM I certification (DoD 8140 required upon start). Acceptable certifications include CAP/CND, Cloud+, GSLC, Security + CE, HCISSP, CASP+CE, CISM, CISSP, or CCISO.

Responsibilities

  • Update and maintain hardware and software inventory records and associated change logs.
  • Support and coordinate Secure the Enterprise (STE) and Secure the Network (STN) activities.
  • Review and address Xacta notices ensuring compliance documentation is accurate and current.
  • Complete SEAR audit log records following Sponsor standards.
  • Track, review, and resolve POAMs related to IAVA/IAVAx findings.
  • Develop and maintain System Security Plans (SSPs) for new and existing systems.
  • Analyze vulnerability scan results and collaborate with system owners for remediation.

Benefits

  • Health Insurance
  • Life Insurance
  • Paid Time Off
  • Holiday Pay
  • Short-term and long-term Disability
  • Retirement and Savings
  • Learning and Development opportunities
  • Wellness programs and optional benefit elections
Full Job Description
Description & Requirements

Information System Security Officer (ISSO) to join our team in Columbia, Maryland.

You will play a critical role in supporting enterprise infrastructure capabilities for a global, mission-focused workforce. As an ISSO, you will work alongside customers, Integrated Product Teams (IPTs), and vendors to support the implementation and compliance of advanced EIT capabilities through Data Center & Compute Services. You will manage cybersecurity documentation, assess system vulnerabilities, and support the Risk Management Framework (RMF) lifecycle in alignment with Sponsor policies.

Responsibilities include, but are not limited to:
  • Update and maintain hardware and software inventory records, including associated change logs
  • Support and coordinate Secure the Enterprise (STE) and Secure the Network (STN) activities
  • Review and address Xacta notices and ensure compliance documentation is accurate and current
  • Complete SEAR audit log records in accordance with Sponsor standards
  • Track, review, and resolve POAMs (Plan of Action and Milestones) related to IAVA/IAVAx findings
  • Develop and maintain System Security Plans (SSPs) for both new and existing systems
  • Analyze vulnerability scan results and collaborate with system owners to implement remediation
  • Leverage sponsor tools such as Gatekeeper, Xacta, SEAR, and LatteArt in daily operations

Minimum Qualifications:
  • Bachelor's degree with 12+ years of relevant experience OR associate's degree with 15 years of relevant experience OR high school diploma/GED with 20 years of relevant experience
  • Experience with Xacta, LatteArt and other sponsor tools
  • Experience managing POAMs, performing audit log reviews, and maintaining secure system inventories
  • IAM I certification (DoD 8140 required upon start of employment. Acceptable certifications include CAP/CND/Cloud+/GSLC/Security + CE/HCISSP/CASP+CE/CISM/CISSP/ or CCISO)

Preferred Qualifications:
  • Knowledge of STE and STN processes and coordination
  • Experience with Gatekeeper, SEAR, SCANBOY
  • Experience with the Service Now (SNOW) platform


Clearance Requirements:
  • Must possess and maintain a current/active TS/SCI clearance with Polygraph

Physical Requirements:
  • Must be able to remain in a stationary position 50% of the time
  • Occasionally moves about inside the office to access file cabinets, office machinery, etc.
  • Frequently communicates with co-workers, management, and customers, including delivering presentations. Must be able to exchange accurate information in these situations


The projected compensation range for this position is $141,500.00-$236,000.00. 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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