Modern Technology Solutions, Inc. (MTSI) · 1 day ago
Information Systems Security Officer (ISSO)- Senior
Huntsville, AL
Full-time
Onsite
Senior Level, Lead/Staff
10+ years expModern Technology Solutions, Inc. (MTSI) is seeking a dedicated Senior Information System Security Officer (ISSO) to provide cybersecurity expertise for a vital Department of Defense initiative. The ISSO will support the development, implementation, and maintenance of the cybersecurity program to ensure compliance with DoD security requirements and the Risk Management Framework.
Information Technology
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Implement and maintain cybersecurity controls for mission systems to protect sensitive data and assets
Assist in the development and maintenance of System Security Plans (SSPs), Risk Assessment Reports (RARs), and other RMF documentation
Ensure compliance with DoD regulations, policies, and guidance, such as STIGs, FISMA, and NIST SP 800-53
Support the RMF process, including categorization, control selection, assessment, and continuous monitoring of system security posture
Assist in the preparation and submission of Authorization to Operate (ATO) packages and ensure systems maintain their authorized status
Collaborate with engineering and operational teams to implement required security controls and resolve deficiencies
Conduct security audits, scans, and continuous monitoring to validate compliance and identify vulnerabilities
Maintain logs, reports, and documentation related to system access, security incidents, and cybersecurity status
Prepare briefings and reports for program managers and stakeholders regarding cybersecurity performance and risks
Monitor systems for security incidents, conduct initial investigations, and assist in handling and reporting incidents according to DoD protocols
Develop and implement plans to mitigate identified vulnerabilities and reduce risks to the systems
Liaise with Information System Security Managers (ISSMs), program leadership, and engineering teams to ensure cybersecurity objectives are met
Support cross-functional teams to align cybersecurity efforts with mission requirements
Ensure personnel are trained and aware of cybersecurity responsibilities, policies, and best practices relevant to the systems
Qualification
Required
Bachelor's degree in Cybersecurity, Information Assurance, Computer Science, or related technical field
10+ years experience in information systems security or related roles within DoD environments
Knowledge of RMF processes, DoD cybersecurity standards, and NIST 800-53 control frameworks
Familiarity with security tools such as ACAS, Nessus, Splunk, or SIEM platforms
Strong problem-solving and analytical skills with attention to detail in a compliance-driven environment
Excellent communication skills for collaboration with technical teams and program managers
Active TOP SECRET (TS) clearance with eligibility for Sensitive Compartmentalized Information (SCI)
U.S. Citizenship is required for this position
Preferred
Certifications such as Security+, CEH, CISSP, or other DoD-approved cybersecurity certifications
Experience with space-based systems or satellite communications cybersecurity
Familiarity with implementing and maintaining security controls for classified and unclassified systems
Company
Modern Technology Solutions, Inc. (MTSI)
Modern Technology Solutions, Inc.
1001-5000 employees
Funding
Current Stage
Late StageLeadership Team
Kevin Robinson
President and CEO
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