Cybersecurity Engineer III (48241)

Job Description

Job Description

Cybersecurity Engineer III

Client : Information Systems Solutions, Inc.
Location : San Diego, CA
Work Arrangement : 100% Onsite at NIWC PAC
Employment Type : 6-Month Contract-to-Hire
Clearance : Active Secret
Worksite : 53560 Hull St., San Diego, CA 92152 Position Details

This position supports the NIWC PAC Information Technology Management Support Services contract. The Cybersecurity Engineer III will provide hands-on cybersecurity and accreditation support for a DoD environment, with a strong focus on RMF, A&A, eMASS, security controls, STIGs, POA&Ms, and ATO activities.

Key Responsibilities

• Support Assessment & Authorization (A&A) activities and the Risk Management Framework (RMF) accreditation lifecycle.

• Develop, maintain, and update A&A documentation, including SSPs, SAPs, SARs, and POA&Ms.

• Manage accreditation activities within eMASS, including scheduled tasking, ATO-related activities, quarterly IV&V, STIG checks, ASRs, and monthly POA&M updates.

• Test and evaluate security controls based on security categorization, applicable overlays, and control tailoring.

• Conduct security assessments, identify vulnerabilities, document findings, and recommend appropriate remediation.

• Develop and maintain accurate POA&Ms, including mitigation statements, milestone tracking, and alignment with applicable security controls.

• Perform and support DISA STIG assessments and remediation activities.

• Support cybersecurity monitoring and incident response activities, including incident triage and impact assessment.

• Support ATO, ATC, IATC, and IATT submissions and resubmissions, as applicable.

• Maintain DISA circuit connections (CCSDs), system inheritance relationships, and accreditation workflow schedules.

• Apply security requirements across classified, intelligence, privacy, and other applicable environments.

Required Qualifications

• 10+ years of cybersecurity or incident response experience, preferably within DoD or federal environments.

• Active Secret clearance.

• Strong hands-on experience with RMF and Assessment & Authorization (A&A).

• Hands-on experience with eMASS and DoD accreditation processes.

• Experience developing and maintaining:

  • System Security Plans (SSPs)

  • Security Assessment Plans (SAPs)

  • Security Assessment Reports (SARs)

  • Plans of Actions & Milestones (POA&Ms)

• Strong experience with security controls, DISA STIGs, vulnerability assessment, testing, and remediation.

• Experience supporting cybersecurity monitoring, security testing, auditing, and risk assessment.

• Ability to work 100% onsite in San Diego, CA at the NIWC PAC location.

Required Certification

IAM Level II certification required. One of the following:

• CISSP or CISSP Associate

• CASP+

• CAP

• CGRC

• CISM

• GSLC

Preferred: CISSP