Information Systems Security Officer (ISSO) 2

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 and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations. Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities.

Procedure Compliance - Each employee must read, understand and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/her job. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status.

#javelin

Compensation Details:

$175,000-$190,000

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• 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

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:

05/11/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters ( .