Information Systems Security Officer (ISSO) ...

our Impact: Are you interested in using your skills to help shape the Cyber, Security, & Intel space? If so, look no further. Amentum is seeking an Information Systems Security Officer (ISSO) to join our team of passionate individuals in Linthicum, MD . In this role you will support challenging, mission-critical projects that make a direct impact on the Nationu2019s security and intelligence mission. The work environment is fast-paced and sometimes involves deadline pressures. The nature of the work requires a high degree of teamwork and cooperation with other members of the staff as well as individuals across the Company and Customers. Our program includes easily available process information and support from others with similar positions across the team. Responsibilities: u2022 Maintain the appropriate operational security posture for assigned systems, programs, and/or enclaves. u2022 Provide guidance and technical expertise on all matters that impact or effect the security of the information system. u2022 Assist in the development and execution of an enterprise level continuous monitoring program to minimize security risks and ensure compliance with that program on a routine basis. u2022 Developing, updating, and submitting the System Security Plan and other required documentation that make up the Security Authorization Package. u2022 Conduct configuration management for security-relevant changes to software, hardware, and firmware. u2022 Perform and deliver security impact analyses of changes to the system or its environment of operation. u2022 Assess the effectiveness of system security controls on an ongoing basis to determine system security status. u2022 Maintain and enforce IT security policies and implementation guidelines for customer systems in diverse operational environments. u2022 Provides configuration management for security-relevant information system software, hardware, and firmware. Requirements: u2022 Ten (10) years of related work experience in the field of security authorization. u2022 A Bacheloru2019s degree in Computer Science, Information Technology Engineering, or a related field may be substituted for four (4) yearsu2019 experience. u2022 DoD 8570.1 compliant IAM Level I certification, such as the CompTIA Security+ certification. A higher-level certification, such as GSLC, CAP, CASP, CISM and/or CISSP will also be accepted. u2022 US Citizen with an active TS/SCI and a current polygraph u2022 A working knowledge of the security authorization processes and procedures as defined in the RMF in NIST SP800-37 and familiarity with the ICD503, CNSSI1253, SP800-53, etc. u2022 Knowledge of commercial security tools and their uses. u2022 Experience with hardware/software security implementations. u2022 Knowledge of different communication protocols, encryption techniques/tools, and PKI and authorization services. u2022 Familiarity with security incident management, experience collaborating with Incident Response Teams, and able to provide viable recommendations for the resolution or computer security incidents and vulnerability compliance. u2022 Experience creating and presenting documentation and management reports. u2022 Attendance is always critical. Must be able to work a 40-hour workweek, normally Monday through Friday. However, times and days may vary depending on business requirements. Needs to be available to work overtime during critical peaks and be available to meet last minute requests for overtime should the situation occur. u2022 Must be able to communicate effectively both verbally and in writing. u2022 Must put forward a professional behavior that enhances productivity and promotes teamwork and cooperation. u2022 Must be able to interface with individuals at all levels of the organization both verbally and in writing. u2022 Must be well-organized with the ability to coordinate and prioritize multiple tasks simultaneously. Clearance Required: u2022 TS/SCI with poly Minimum Education: u2022 A Bacheloru2019s Degree in Computer Science or IT Engineering or related field may be substituted for four (4) years of experience. Minimum Years of Experience: u2022 Ten (10) years of related work experience in the field of security authorization or six (6) with applicable BS degree. Required Certifications: u2022 DoD 8570.1 compliant IAM Level I certification, such as the CompTIA Security+ certification. A higher-level certification, such as GSLC, CAP, CASP, CISM and/or CISSP will also be accepted. Preferred: u2022 Should have experience working with the XACTA IA Manager. u2022 Should be highly analytical and effectively able to troubleshoot and prioritize needs, requirements, and other issues. u2022 Should be committed to continuous learning and system development because of the constant developing nature of cyber-attacks. u2022 Should have the ability to quickly learn new concepts, data formats, and software. u2022 Should be a self-motivated, independent, detail oriented, responsible team player, and exhibit exceptional relationship management skills. #javelin #externalreferral Pay Transparency Verbiage Amentumu2019s health and welfare benefits are designed to invest in you and in the things you care about. Your health. Your well-being. Your security. Your future. Eligible employees and their dependents may elect medical, dental, vision, and basic life insurance. Employees are able to enroll in our companyu2019s 401k plan, and, if eligible, a deferred compensation plan and Executive Deferral Plan. Employees will also receive 17 days of vacation per year, eight paid holidays, plus floating holidays.. Hired applicants will be able to purchase company stock and have the opportunity to receive a performance discretionary bonus. The base salary range for this position is $170k to $195k . This range reflects the minimum and maximum target for new hire salaries for the position across all US locations. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training. Compensation Details: $170000-195000 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: 01/12/2026 - 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 (.

Created: 2026-01-14