Senior Information System Security Officer

MANTECH; Corridor North (MD); On-site; USD 110,000 - 170,000; Full time

Job summary

MANTECH is seeking a motivated Information System Security Officer (ISSO) to join our team in Annapolis Junction, MD. You will support enterprise infrastructure for a global mission-focused workforce, managing cybersecurity documentation, RMF lifecycle activities, and system vulnerabilities in alignment with Sponsor policies.

Responsibilities include maintaining SSPs, reviewing POAMs, and coordinating with IPTs and vendors on NIST RMF implementations and compliance.

Qualifications

• 10 years of relevant experience with a Bachelor's degree; 4 years can substitute for degree.
• Experience with sponsor tools such as Xacta and LatteArt.
• Experience managing POAMs, performing audit log reviews, and maintaining secure system inventories.
• IAM I certification (DoD 8140) or equivalent (CAP/CND/Cloud+/GSLC/Security+ CE/HCISSP/CASP+CE/CISM/CISSP/CCISO) preferred.

Responsibilities

• Update and maintain hardware and software inventory records and change logs.
• Support Secure the Enterprise (STE) and Secure the Network (STN) activities.
• Review Xacta notices and ensure accurate compliance docs.
• Complete SEAR audit logs per Sponsor standards.
• Track and resolve POAMs for IAVA/IAVAx findings.
• Develop and maintain SSPs for new and existing systems.
• Analyze vulnerability scans and coordinate remediation with owners.
• Utilize Gatekeeper, Xacta, SEAR, and LatteArt in daily operations.

Skills

Xacta

LatteArt

POAM management

RMF lifecycle

SSP development

Audit logs

Education

Bachelor's degree

Tools

Gatekeeper

Xacta

SEAR

LatteArt

SCANBOY

Job description

MANTECH is seeking a motivated Information System Security Officer (ISSO) to join our team in Annapolis Junction, MD. You will support enterprise infrastructure for a global mission-focused workforce, managing cybersecurity documentation, RMF lifecycle activities, and system vulnerabilities in alignment with Sponsor policies.

Responsibilities include maintaining SSPs, reviewing POAMs, and coordinating with IPTs and vendors on NIST RMF implementations and compliance.