Senior Information Systems Security Officer TS/SCI w/Poly
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Senior+$321M raised
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Senior Information Systems Security Officer TS/SCI w/Poly
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$140k–$180k/yr
Full-time
high school, associate degree, bachelor degree, postgraduate degree
Health Insurance, Dental Insurance, Vision Insurance, Paid Time Off, Holidays, Retirement Benefits
Posted 25d ago
~40 hrs/week
Responsibilities
Maintain the security posture and compliance of critical mission systems and six System Security Plans using the Risk Management Framework. Perform regular audits and continuous monitoring to detect vulnerabilities and support periodic reaccreditation.
Requirements
Requires a TS/SCI with Poly clearance and an IAM Tier 1 certification. Candidates must have significant experience as an ISSO, with education and experience combinations ranging from a Bachelor's plus 8 years to a high school diploma plus 12 years.
Full job description
Purpose and Impact:
Amentum is seeking a self-starting, motivated individual to be the Information System Security Officer supporting Computer Network Operations with maintaining compliance and strengthening the security posture of critical mission systems via the Risk Management Framework; will be responsible for 6 System Security Plans (SSPs).
Essential Responsibilities:
Ensure the appropriate operational security posture is maintained for information systems. Support continuous monitoring of networks to detect and correct areas of security non-compliance, unmitigated vulnerabilities, and other risks. Follow consistent security processes and play a role in the information systems continuous monitoring program. Perform regular audits of information systems. Assist the information systems security manager in preparing the information system for periodic reaccreditation.
Minimum Requirements (Knowledge, Skills, and Abilities):
Experience as an ISSO with emphasis on Defense-in-Depth principles, network, and enterprise security architecture.
Experience applying the principles of the NIST 800-53 including the procedures in the Risk Management Framework (RMF).
Familiarity with STE/STN requirements and associated tools and tradecraft.
Security Clearance Required:
TS/SCI Poly
Minimum Years of Experience:
Bachelor's degree plus 8-years of relevant experience
or Master's degree plus 6-years of relevant experience.
An Associate's degree or 18 semesters hours of military coursework/training in a computer-related field plus 10-years of relevant experience
or high school diploma/GED plus 12-years of relevant experience may be considered.
Required Certifications:
Information Assurance Manager (IAM) Tier 1 certification.
Preferred Qualifications:
Excellent written and oral communication skills
#javelin #ICpoly
This position is not designated as a safety sensitive position.
As part of our commitment to maintaining a safe and compliant work environment, Amentum is a drug-free workplace and requires all personnel to comply with company drug and alcohol policies as a condition of employment. Employment is contingent upon successful completion of the drug screening process. Please note that this may include pre-hire screening for marijuana, as well as other federally controlled substances due to Amentum’s role as a federal contractor and trusted partner to the US Government.
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.
Compensation Details:
$140000-180000
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:
07/15/2026 - 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.
A global leader in advanced engineering and innovative technology solutions.
Industry
Defense and Space Manufacturing
Company size
10,001+ employees
Headquarters
Chantilly, Virginia
LinkedIn followers
264,026
Total funding
$321M
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.
Offices: 4800 Westfields Blvd, 400, Chantilly, Virginia 20151, US · 20501 Seneca Meadows Pkwy, Suite 300, Germantown, Maryland 20876, US
A global leader in advanced engineering and innovative technology solutions.
Industry
Defense and Space Manufacturing
Company size
10,001+ employees
Headquarters
Chantilly, Virginia
LinkedIn followers
264,026
Total funding
$321M
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.
Offices: 4800 Westfields Blvd, 400, Chantilly, Virginia 20151, US · 20501 Seneca Meadows Pkwy, Suite 300, Germantown, Maryland 20876, US