In today’s rapidly evolving cyber security landscape, new and more dangerous threats are emerging daily, and vulnerabilities are being exploited almost as fast as they are discovered. The previous mindset of designing solutions, developing software, building environments, and then applying security is totally inadequate in the face of today’s realities. Agencies and programs must focus less on “What do we have to do to get an Authorization to Operate (ATO)?” and more on “What must we do to keep the data, systems, services, and resources within our boundary protected to the fullest extent possible while successfully serving the mission?” Adopting a “Cyber Security First and Continuously; Mission Always” approach will lead naturally to ATOs. The safety of our country, people, warfighters, and vital information depends on it.
As an Information Systems Security Officer (ISSO) and Cyber Security Subject Matter Expert, you will serve as a critical bridge between high-level security policies and their technical implementation, driving the Risk Management Framework (RMF) and Assessment & Authorization (A&A) lifecycle across multiple applications and environments. Your primary purpose is to ensure that system designs and implementations inherently meet rigorous security objectives by evaluating IT architectures, guiding development teams, and enforcing compliance with NIST SP 800-53 Rev 5 and other enterprise standards from concept to deployment.
In this role, your work directly safeguards mission-critical systems and reduces organizational risk. By proactively identifying, tracking, and mitigating vulnerabilities through continuous monitoring, STIG enforcement, and POA&M management, you ensure the resilience of enterprise capabilities. Your leadership in disaster recovery planning and IAVA compliance empowers engineers and developers to securely deliver operations, ultimately protecting the integrity and availability of our technological infrastructure.
Work hours are 9am – 5pm, Monday thru Friday, at least four days at customer or Amentum site.
Most work will be done at a desk or computer.
TS/SCI CI Poly
Bachelor's degree plus 10 years’ experience, associate’s degree plus 12 years’ experience, or a minimum of 14 years’ experience in a related field
CompTIA Security+ (at a minimum)
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
US:$185,000 - $200,000
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.
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
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.
09/15/2026 - 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.
Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents.
