Information System Security Officer (ISSO)

Posted 2 Days Ago
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Sunnyvale, CA, USA
In-Office
175K-200K Annually
Senior level
Security • Cybersecurity
The Role
Supports NASA information-system cybersecurity throughout the system life cycle. Responsibilities include developing System Security Plans, managing RMF and A&A documentation, tracking POA&Ms and risk decisions, reviewing threats and vulnerabilities, supporting patching and remediation, evaluating cloud security, analyzing logs, testing contingency plans, and advising system owners on security controls, privacy assessments, and compliance requirements.
Summary Generated by Built In

Amentum is seeking an Information System Security Official for a contract at the National Aeronautics and Space Administration (NASA), Sunnyvale, CA location. The Information System Security Official (ISSO) services provide cybersecurity Subject Matter Experts (SMEs) to support NASA Information Systems.

Amentum is a leading provider of engineering, scientific, and program management support services to some of the top agencies in the U.S. Government, including NASA, Defense Advanced Research Projects Agency (DARPA), the Department of Homeland Security and the Intelligence Community. 

Job Duties and Responsibilities: 

  • Develop and maintain detailed and accurate System Security Plans (SSP), including security documentation for component and interface specifications, to support appropriate cybersecurity and privacy throughout the information systems’ life cycle 

  • Assist the Information System Owner (ISO) and Information System Security Manager (ISSM) in ensuring that all components of the information system are appropriately updated and patched in accordance with Federal and NASA requirements 

  • Support the Government with identifying and prioritizing essential system functions or sub-systems required to support essential capabilities or business functions for restoration or recovery after a system failure or during a system recovery event based on overall system requirements for continuity and availability 

  • Provide technical guidance to address the adequacy and effectiveness of information security policies, procedures, and practices

  • Ensure that cybersecurity design and development activities are properly documented (providing a functional description of security implementation) and updated as necessary

  • Ensure Privacy Threshold Assessments (PTA) and Privacy Impact Assessments (PIA) are conducted as required

  • Review cyber intelligence threats reports, including but not limited to SOC MARs, SARs, and DHS/CISA Emergency Directives, in order to identify threats to the information system and develop mitigations 

  • Provide subject matter expertise and recommendations as part of RMF process activities and development of related documentation (e.g., system life-cycle support plans, concept of operations, operational procedures, and maintenance training materials) 

  • Evaluate cloud service providers’ security posture and develop associated recommendations for restrictions, conditions and control responsibility parsing 

  • Write Plan of Action and Milestones (POA&M’s) and Risk Based Decisions (RBD’s) for the System Security Plan (SSP) controls within the NASA Risk Information Security Compliance System (RISCS) tool.   

  • Ensure contingency plans and system controls are reviewed and tested in accordance with the Agency requirements.  

  • Analyze system logs to identify potential issues and perform routine audits of systems and applications.  

  • Ensure critical vulnerabilities that require immediate attention are remediated, as identified in the Security Operation Center (SOC) Mitigation Action Recommendation (MAR).  

  • Ensure the installation of security/vulnerability patch updates, operating system level patches and upgrades to include new versions.

  • Provide IT security support to communication systems as needed and serve as a technical resource to Information System Security Officer(s) (ISSO) and other IT professionals  

  • The contractor shall assist in the development and updating of the System Security Plan, Contingency Plan, Disaster Recovery Plans, Risk Assessment Report, annual review package, work instructions, policies, and procedural guides affecting the overall IT and security posture of the environment 

  • Support the Assessment and Authorization (A&A) process by preparing associated documentation, building, and tracking Plan of Action and Milestones (POA&M), and monitoring A&A activities  

Required Qualifications:

  • Must have an active Top Secret US Government Clearance, with the ability to obtain an SCI Clearance. Please note US Citizenship is required to maintain a Top Secret Clearance.

  • Bachelor of Science degree with 5 years of professional experience in cybersecurity design and development activities

  • Strong oral and written communication skills

Desired qualifications:

  • SCI clearance eligibility

  • Experience in NASA Security or served as an ISSO in other agencies.

  • Experience in NASA Risk Information Security Compliance System and Assessment and Authorization.

  • Experience with Cloud Services and classified networks.

  • Certification level to meet DoD 8140 IAT or DoD 8570 IAT Level II certification or higher.

       

Compensation Details:

$175K-$200K

       

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:

08/19/2026 - 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.

Skills Required

  • Active Top Secret U.S. Government security clearance
  • Ability to obtain an SCI clearance
  • U.S. citizenship required to maintain the Top Secret clearance
  • Bachelor of Science degree
  • Five years of professional experience in cybersecurity design and development activities
  • Strong oral and written communication skills
  • SCI clearance eligibility
  • Experience with NASA security or serving as an ISSO at another agency
  • Experience with NASA Risk Information Security Compliance System and Assessment and Authorization
  • Experience with cloud services and classified networks
  • DoD 8140 IAT or DoD 8570 IAT Level II certification or higher

Amentum Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Amentum and has not been reviewed or approved by Amentum.

  • Healthcare Strength Healthcare offerings are described as comprehensive, with medical, dental, and vision plans and multiple PPO/HSA options. Mental health support via an employee assistance program and other wellness resources is also included in the benefits mix.
  • Retirement Support Retirement support is positioned as a meaningful part of total rewards through a 401(k) plan with employer matching. Profit-sharing contributions and immediate or near-term vesting in some cases further strengthen the retirement value proposition.
  • Leave & Time Off Breadth Time-off benefits are presented as solid for the sector, including tiered PTO accrual by tenure and a set of paid holidays. Role-dependent flexible or remote work options and leave programs add to perceived work-life support.

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The Company
HQ: Chantilly, VA
18,261 Employees

What We Do

Amentum is a premier global technical and engineering services partner supporting critical programs of national significance across defense, security, intelligence, energy, and environment. We draw from a century-old heritage of operational excellence, mission focus, and successful execution underpinned by a strong culture of safety and ethics. Headquartered in Germantown, Md., we employ more than 20,000 people in 48 states and 28 foreign countries and territories. Visit us at amentum.com to explore how we deliver excellence for our customers’ most vital missions.

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