Information System Security Manager (ISSM)

• Support the ISSE's with day-to-day management ofinformation systems
• Support the ISSE's with RMF lifecycle tasks: categorization, control selection, implementation, assessment, authorization, and continuous monitoring.
• Ensure systems comply with applicable standards such as NIST RMF, DoD 8500 series, and organizational policies
• Manage ATO packages in coordination with selected performers cybersecurity team, including SSPs, SCTM's, POA&Ms, SARs, and risk assessments
• Oversee the development, implementation, and maintenance of system security plans (SSPs), POA&Ms, and other accreditation artifacts
• Coordinate and support security authorization activities (ATO, etc.)
• Conduct risk assessments and vulnerability analyses; implement mitigation strategies
• Manage continuous monitoring activities and ensure timely remediation of findings
• Interface with auditors, assessors, and government stakeholders
• Provide guidance and training to system owners, administrators, and users on security best practices
• Monitor system changes and assess security impact in accordance with configuration management processes

• Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or related field (or equivalent experience)
• 5+ years of experience in information assurance or cybersecurity roles
• Strong knowledge of Risk Management Framework (RMF) and security controls (e.g., NIST SP 800-53)
• Experience supporting system accreditation and authorization processes
• Experience with cloud security frameworks (e.g., AWS GovCloud, Azure Government)
• Active DoD 8140 certification (e.g., CISSP, CASP+, CISM, or equivalent)
• Excellent analytical, communication, and documentation skills
• Ability to work independently and manage multiple priorities

• Experience in DoD or federal environments
• Familiarity with tools such as eMASS, ACAS, SCAP, or similar
• Prior experience as an ISSO or ISSM
• Master's degree in a related field

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  Interesting Work:
  
  
  
  Our co-workers support some of the most important and critical programs to our national defense and security.
  
  
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  Values:
  
  
  
  Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.
  
  
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  100% Employee Owned:
  
  
  
  We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.
  
  
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  Great Benefits - Most Full-Time Staff Are Eligible for:
  
  
  




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  Starting PTO accrual of 20 days PTO/year + 10 holidays/year
  
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  Flexible schedules
  
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  6% 401k match with immediate vesting up to $9k annually
  
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  Semi-annual bonus eligibility (July and December)
  
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  Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
  
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  Up to $10,000 in annual educational reimbursement
  
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  Other company funded benefits, like life and disability insurance
  
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  Optional zero deductible Blue Cross/Blue Shield health insurance plan
  




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  Track Record of Success:
  
  
  
  We have grown every year since our founding in 1993.
  
  

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.

For more information about MTSI, please visit www.mtsi-va.com