Systems Security Engineer

• Security Architecture Design: Design and implement security solutions to ensure the confidentiality, integrity, and availability of systems in compliance with government regulations and standards (e.g., NIST 800-53, Risk Management Framework (RMF), DISA STIGs).
• Risk Assessment: Identify threats and vulnerabilities related to systems, networks, and applications, and provide recommendations to mitigate risks.
• Compliance Management: Ensure systems and processes align with DoD policies, federal regulations, and agency-specific security requirements.
• System Hardening: Perform system hardening activities, including configuring devices, removing unnecessary services, and applying patches according to DISA STIG guidelines.
• Incident Response: Lead efforts to respond to cybersecurity incidents by investigating, analyzing, and documenting security breaches.
• Monitoring and Reporting: Oversee real-time monitoring processes, analyze alerts, and prepare security reports to share with senior management or government agencies.
• Collaboration: Work closely with engineering, IT, and program management teams to integrate security into project lifecycles and provide guidance on best practices for safeguarding classified and sensitive information.
• Documentation: Develop and maintain comprehensive documentation, including system security plans (SSPs), risk matrixes, and assessment/evaluation reports.

• Education: Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or related field (Master's degree preferred).
• Experience: 5+ years of experience in systems security architecture or engineering, ideally within a government or DoD environment.
• Certifications: Relevant certifications such as CISSP, CEH, CISM, CompTIA Security+, or CAP.
• Knowledge: Deep understanding of cybersecurity frameworks (NIST) and standards, RMF, DISA STIGs, and system accreditation processes.
• Technical Skills: Expertise in network security, firewalls, intrusion detection/prevention systems, secure coding practices, and vulnerability scanning tools.
• Must possess an active Top Secret clearance with eligibility for SCI.

• Experience with government contracting and DoD security program management.
• Familiarity with scripting, automation tools, and secure system integration techniques.
• Understanding of cloud security in classified environments.

• Strong analytical skills to identify cybersecurity risks and solutions.
• Excellent verbal and written communication skills for interfacing with internal teams and external government agencies.
• Ability to work in high-pressure environments and handle sensitive information securely.

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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