Information System Security Officer
Company: MANTECH
Role summary
Information System Security Officer is a full-time role at MANTECH in Annapolis Junction, Maryland, United States (on-site). Posted 2026-10-02. Salary: USD 141,500–236,000 per year. Experience level: 10+.
- Job title
- Information System Security Officer
- Company
- MANTECH
- Location
- Annapolis Junction, Maryland, United States
- Work arrangement
- on-site
- Employment type
- full-time
- Category
- Data Science
- Salary
- USD 141,500–236,000 per year
- Experience level
- 10+
- Date posted
- 2026-10-02
This Information System Security Officer role offers a chance to make a real impact on national security by protecting vital government intelligence systems. You'll work on cutting-edge technology in a full-time position with a very competitive salary. It's a great opportunity to grow your career with a company that has a long history of innovation.
Job description
Description & Requirements
Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!
MANTECH seeks a motivated, career driven, and customer-focused Information System Security Officer (ISSO) to join our team in Annapolis Junction , Maryland.
You will play a critical role in supporting enterprise infrastructure capabilities for a global, mission-focused workforce. As an ISSO, you will work alongside customers, Integrated Product Teams (IPTs), and vendors to support the implementation and compliance of advanced EIT capabilities through Data Center & Compute Services. You will manage cybersecurity documentation, assess system vulnerabilities, and support the Risk Management Framework (RMF) lifecycle in alignment with Sponsor policies.
Responsibilities include, but are not limited to:
Update and maintain hardware and software inventory records, including associated change logs
Support and coordinate Secure the Enterprise (STE) and Secure the Network (STN) activities
Review and address Xacta notices and ensure compliance documentation is accurate and current
Complete SEAR audit log records in accordance with Sponsor standards
Track, review, and resolve POAMs (Plan of Action and Milestones) related to IAVA/IAVAx findings
Develop and maintain System Security Plans (SSPs) for both new and existing systems
Analyze vulnerability scan results and collaborate with system owners to implement remediation
Leverage sponsor tools such as Gatekeeper, Xacta, SEAR, and LatteArt in daily operations
Minimum Qualifications:
10 years of relevant experience with a Bachelors degree from an accredited college or university. 4 years of addition experience may be substituted for a Bachelors degree
Experience with Xacta, LatteArt and other sponsor tools
Experience managing POAMs, performing audit log reviews, and maintaining secure system inventories
IAM I certification (DoD 8140 required upon start of employment. Acceptable certifications include CAP/CND/Cloud+/GSLC/Security + CE/HCISSP/CASP+CE/CISM/CISSP/ or CCISO)
Preferred Qualifications:
Knowledge of STE and STN processes and coordination
Experience with Rev 5 and ServiceNow ICAM
Experience with Gatekeeper, SEAR, SCANBOY
Demonstrated experience in SSP development and incident response management
Clearance Requirements:
Must possess and maintain a current/active TS/SCI clearance with Polygraph
Physical Requirements:
Must be able to remain in a stationary position 50% of the time
Occasionally moves about inside the office to access file cabinets, office machinery, etc.
Frequently communicates with co-workers, management, and customers, including delivering presentations. Must be able to exchange accurate information in these situations
The projected compensation range for this position is $141,500.00-$236,000.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.
General information
Requisition #
R70430
Locations
USA-MD-Annapolis Junction
Posting Date
08/31/2026
Security Clearance Required
TS/SCI w/ Poly
Remote Type
Onsite
Time Type
Full time