Amentum · 12 hours ago
Information Systems Security Officer (ISSO), Senior
Fort Meade, MD
Full-time
Onsite
Senior Level, Lead/Staff
$200K/yr - $200K/yr
10+ years expAmentum is a company supporting critical network capabilities for the Department of Defense. They are seeking a Senior Information Systems Security Officer (ISSO) to implement and enforce security policies, analyze threats, and manage compliance and accreditation processes for information systems.
Mechanical EngineeringSecurityTechnical Support
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Provide support for implementing and enforcing information systems security policies, standards, and methodologies
Analyze threats and develop and implement best practice methodologies for incident detection, reporting, and vulnerability remediation
Serve as a focal POC between the project team and the accreditation office
Review/assess network diagrams and schematics
Review and interpret system vulnerability scans and work with project team to resolve security issues
Resolve inconsistencies and irregularities in the submission of A&A documentation
Conduct self-assessments and create and submit assessment reports analyzing organizational risk to the Government client
Manage software and hardware compliance, systems certification and accreditation, patch management, and continuous monitoring/scanning
Maintaining systems as well as working with SETA and development contractors to prepare SSPs and work through the A&A processes
Generate and continually review/update the Body of Evidence (BOE) and artifacts
Evaluate security solutions to ensure they meet security requirements for processing information
Provide support to the Information System Security Manager (ISSM) for maintaining the appropriate operational IA posture for a system/program/enclave
Develop and update system security plans and other IA documentation
Support Information Assurance Vulnerability Alerts (IAVAs) management (initiating IAVA responses and system security scans, completing remediation, extending IAVA patches and security updates to designated sites, etc.)
Maintain comprehensive eMASS records by managing system documentation, assigning and validating security controls, and overseeing the Plan of Action and Milestones (POA&M) to track and resolve system vulnerabilities
Qualification
Required
Bachelor's degree in a related field and at least 10 years of relevant experience. Additional experience may be substituted for a degree
TS/SCI security clearance
Current DOD 8570 Information Assurance Technician 'IAT' Level II certification
Must have at least 8 years of experience as ISSO working independently, and/or on teams maintaining secure information system operations
Must have at least 5 years of experience using tools to support IAVA management
Must have at least 5 years of experience using tools to support the preparation, maintenance, and management of SSPs and other security related documentation
Direct experience with patch management, continuous monitoring, and vulnerability scanning/remediation activities including implementing a continuous monitoring plan across multiple security domains
In-depth knowledge of and experience with tools used for vulnerability assessments such as ACAS, Nessus, SCAP, etc
In-depth experience completing security evaluations of software systems or architectures to ensure they meet security requirements
In-depth experience proposing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies, preferably on a large IT program
Demonstrated experience performing day-to-day security operations of large, complicated information and information processing systems
Proven hands-on experience with the eMASS platform, including system registration, managing security controls, and developing A&A packages
Must have active Top Secret clearance with SCI eligibility
Bachelor's degree or equivalent in the fields of mathematics, telecommunications, electrical engineering, computer engineering, or computer science
10 Years of relevant experience
DoD 8570 IAT Level II certification
Preferred
Master's degree in IT or related field
Previous SAP experience
Prior experience as an ISSM or ISSE
DoD 8570 IAT or IAM Level III certification
Familiarity with cloud computing and related security concepts as well as cross-domain solutions
Benefits
Health, dental, and vision insurance
Paid time off and holidays
Retirement benefits (including 401(k) matching)
Educational reimbursement
Parental leave
Employee stock purchase plan
Tax-saving options
Disability and life insurance
Pet insurance
Company
Amentum
Amentum is a technology and engineering company for security, defense, and energy.
10001+ employees
Funding
Current Stage
Public CompanyTotal Funding
$321.16M2025-03-12Post Ipo Secondary· $321.16M
2024-09-27IPO
2020-01-01Private Equity
Leadership Team
Ajay Nagar
Vice President
Darren Burton
Chief People Officer
Recent News
2026-02-03
2026-01-20
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