Senior Information System Security Officer

General information

Requisition # R60419 Locations USA-AL-Huntsville Posting Date 05/12/2025 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time

Description & Requirements

Transform the future of federal services with ManTech! Join a vibrant, energetic team committed to enhancing national security and public services through innovative tech. Since 1968, we’ve partnered with Federal Civilian sectors to deliver impactful solutions. Engage in exciting projects in Digital Transformation, Cybersecurity, IT, Data Analytics and more. Ignite your career and drive change. Your journey starts now—innovate and excel with ManTech!

ManTech seeks a motivated, career and customer-oriented Senior Information System Security Officer (ISSO) to join our team in Huntsville, AL.

Responsibilities include but are not limited to:

• Ensure the day-to-day implementation, oversight, continuous monitoring, and maintenance of the security configuration, practices, and procedures for each IS and that selected security controls are implemented and operating as intended during all phases of the IS lifecycle

• Provide liaison support between the system owner and other IS security personnel

• Ensure that system security documentation is developed, maintained, reviewed, and updated on a continuous basis; Conduct required IS vulnerability scans according to risk assessment parameters

• Manage the risks to ISs and other FBI assets by coordinating appropriate correction or mitigation actions, and oversee and track the timely completion of (POAMs).  Coordinate system owner concurrence for correction or mitigation actions

• Monitor security controls for FBI ISs to maintain security Authorized to Operate (ATO); Upload all security control evidence to the Governance, Risk, and Compliance (GRC) application to support security control implementation during the monitoring phase

• Ensure that changes to an FBI IS, its environment, and/or operational needs that may affect the authorization status are reported to the system owner and IS Security Manager (ISSM)

• Ensure the removal and retirement of ISs being decommissioned in coordination with the system owner, ISSM, and ISSR; Working knowledge of the National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) and ATO processes

Minimum Qualifications:

• 7 + years serving as an Information Systems Security Officer (ISSO) at a cleared facility; (5) Five years with a bachelors in comp sci, cybersecurity or related discipline or (3) three years with a master’s or advanced degree.

• Hold at least one of the following Information Assurance Management (IAM) Level III certifications: Certified Information Systems Security Professional (CISSP), Global Information Security Professional (GISP), or the CompTIA Advanced Security Practitioner (CASP) or equivalent certifications

• Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, IBM Guardium, HP Weblnspect, Network Mapper (NMAP), and/or similar applications

Preferred Qualifications:

• A bachelor's or advanced degree in Computer Science, Cybersecurity, or other cyber discipline

Clearance Requirements:

• Must have a current/active Top Secret clearance with SCI eligibility

• Program may require CI Polygraph

Physical Requirements:

• Must be able to remain in a stationary position 50%

• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

• Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer

• Often positions self to maintain computers in the lab, including under the desks and in the server closet

• Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

ManTech International Corporation 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.