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Information Systems Security Officer; ISSO Security Clearance

Job in Linthicum, Anne Arundel County, Maryland, USA
Listing for: Amentum
Full Time position
Listed on 2026-06-11
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security, Network Security, IT Consultant
Job Description & How to Apply Below
Position: Information Systems Security Officer (ISSO) 2 with Security Clearance
Purpose and Impact:
Amentum is seeking an Information Systems Security Officer (ISSO) 2 for a prime contract that is based out of Linthicum, MD

Essential Responsibilities:

* Provide support for a program, organization, system, or enclave's information assurance program.
* Provide support for proposing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies.
* Maintain operational security posture for an information system or program to ensure information systems security policies, standards, and procedures are established and followed.
* Assist with the management of security aspects of the information system and perform day-to-day security operations of the system.
* Evaluate security solutions to ensure they meet security requirements for processing classified information.
* Perform vulnerability/risk assessment analysis to support security authorization.
* Provide configuration management (CM) for information systems security software, hardware, and firmware.
* Manage changes to system and assess the security impact of those changes.
* Prepare and review documentation to include System Security Plans (SSPs), Risk Assessment Reports, Certification and Accreditation (C&A) packages, and System Requirements Traceability Matrices (SRTMs).
* Support security authorization activities in compliance with National Institute of Standards and Technology Risk Management Framework (NIST RMF).

Minimum Requirements (Knowledge, Skills, and Abilities):
* Provide support to senior ISSOs for implementing, and enforcing information systems security policies, standards, and methodologies
* Assist with preparation and maintenance of documentation
* Assist in the evaluation of security solutions to ensure they meet security requirements for processing classified information
* Assist with Configuration Management (CM) for information system security software, hardware, and firmware
* Maintain records on workstations, servers, routers, firewalls, intelligent hubs, network switches, etc. to include system upgrades
* Propose, coordinate, and implement information systems security policies, standards, and methodologies
* Develop and maintain documentation for Security Authorization in accordance with ODNI and DoD policies
* Provide CM for security-relevant information system software, hardware, and firmware
* Ensure compliance with system security policy
* Evaluate security solutions to ensure they meet security requirements for processing classified information
* Maintain operational security posture for an information system or program
* Provide support to the information System Security Manager (ISSM) for maintaining the appropriate operational Cybersecurity posture for a system, program, or enclave
* Develop and update the system security plan and other Cybersecurity documentation
* Assist with the management of security aspects of the information system and perform day-to day security operations of the system
* Track and ensure appropriate user identification and authentication mechanism of the information System (IS)
* Obtain system authorization for ISs under their purview
* Provide support for a program, organization, system, or enclave's information assurance program
* Plan and coordinate implementation of IT security programs and policies
* Manage and control changes to the system assessing the security impact of those changes
* Provide daily oversight and direction to contractor ISSOs
* Interact with customers, IT staff, and high-level corporate officers to define and achieve required Cybersecurity objectives

Clearance Required:

* TS/SCI

Minimum Education:

* Bachelor's degree in computer science, Cyber Security, IT Engineering or related field is required.
* In lieu of a bachelor's degree, four (4) additional years of work-related experience may be substituted for a total of twelve (12) years. Minimum Years of

Experience:

* Eight (8) years of combined work-related experience in the fields of IT, cybersecurity or security authorization is required. Experience in at least two of the following areas is required: knowledge of current security tools, hardware/software security implementation; communication protocols; or encryption tools and techniques. Familiarity with commercial security products, security authorization techniques, security incident management, and PKI and authorization services.

Required

Certifications:

* Compliance with DoD 8570.01-M with a minimum certification of IAM Level I is required.

Other Responsibilities:

Safety - Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams. Quality - Quality is the foundation for the management of our business…
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