Senior Information Systems Security Officer (ISSO)

SAIC; Port Hueneme (CA); On-site; USD 100,000 - 140,000; Full time

Job summary

SAIC is seeking a Senior Information Systems Security Officer (ISSO) to support mission-critical IT systems on the MAJESTIC JPO Team. The ISSO will implement, manage, and assess security controls for compliance with government standards including RMF and NIST 800-53, ensuring confidentiality, integrity, and availability of essential systems at Port Hueneme, CA.

The ideal candidate will work with system owners and cross-functional security teams to assess risks, maintain posture, and support ATO,

Qualifications

• Bachelor’s degree required in a relevant field.
• Experience implementing RMF/NIST 800-53 controls and producing SSPs/POA&Ms.
• Strong analytical and technical writing skills for audit artifacts.

Responsibilities

• Develop, maintain, and assess RMF artifacts including SSPs and POA&Ms.
• Implement and validate security controls per NIST 800-53 and overlays.
• Support ATO processes and maintain Authority to Operate status.
• Conduct risk assessments and vulnerability analysis to recommend mitigations.
• Harden systems for platforms, apps, and networks per DISA STIGs/CIS benchmarks.
• Monitor systems with Splunk/SolarWinds/ACAS; respond to incidents and alerts.
• Collaborate with IT teams to address security risks and incidents.
• Provide cybersecurity awareness and brief senior leadership on status.

Skills

RMF/NIST 800-53

Vulnerability assessment

Security monitoring (SIEM)

Windows AD security

Risk assessment

Security writing

Education

Bachelor’s Degree

Bachelor’s Degree in Cybersecurity/CS/IT

Tools

Nessus

ACAS

Qualys

Splunk

SolarWinds

Windows Server

Active Directory

RHEL

DISA STIGs

Job description

Description

SAIC is seeking a motivated and skilled Senior Information Systems Security Officer (ISSO)to support cybersecurity and compliance activities for mission-critical IT systems on the MAJESTIC Joint Program Office (JPO) Team. In this role, the ISSO will be responsible for implementing, managing, and assessing system security controls to ensure compliance with government regulations, standards, and best practices, including NIST 800-53,RMF, and other federal security policies.

The ideal candidate will work closely with system owners, administrators, and cross-functional security teams to assess risks, maintain security postures, and ensure the confidentiality, integrity, and availability of information systems that support the mission. This role requires on-site supportin Port Hueneme, CA.

Key Responsibilities

• Ensure compliance with Risk Management Framework (RMF) requirements by developing, maintaining, and assessing system security artifacts, including System Security Plans (SSPs), POA&Ms, and applicable policies and procedures


• Implement and validate security controls in alignment with NIST 800-53, associated overlays, and system-specific requirements


• Support the Accreditation and Authorization (A&A) process, including preparing documentation and achieving and maintaining system Authority to Operate (ATO) status


• Conduct risk assessments and vulnerability analysis, identify potential threats and weaknesses, and provide recommendations for mitigation


• Work with IT teams to implement system hardening for platforms, applications, and networks in compliance with DISA STIGs and cybersecurity best practices


• Perform continuous monitoring of systems using tools such as Splunk, ACAS, or SolarWinds, ensuring real-time threat detection, event notifications, and security compliance validation


• Collaborate with cross-functional teams, including system administrators, developers, and ISSMs, to address security risks, system vulnerabilities, and security incidents


• Support incident response activities by conducting forensic analysis, generating reports, and coordinating efforts to remediate and recover from security events


• Provide cybersecurity awareness training for users and team members to ensure adherence to organizational security requirements and best practices


• Prepare and deliver security status updates, risk reports, and briefings to senior stakeholders and leadership

Qualifications

Required Qualifications

Education

• Bachelor’s Degree

Certifications (CWF Requirements)

• Candidates must satisfy722 (Information Systems Security Manager)requirements, as outlined by Navy COOL
  This requirement can be met by possessing one or more of the following qualifyingcertifications:


• ISC2 CC (Certified in Cybersecurity)


• CompTIA Cloud+


• CompTIA Security+


• CompTIA SecurityX / CASP+


• ISC2 SSCP (Systems Security Certified Practitioner)


• GIAC GSEC (Security Essentials)


• United America Technologies CISSO (Certified Information Systems Security Officer)


• ISC2 CGRC / CAP (Certified in Governance, Risk, and Compliance)


• EC‑Council CCISO (Certified Chief Information Security Officer)


• ISC2 CCSP (Certified Cloud Security Professional)


• GIAC GCSA (Cloud Security Automation)


• GIAC GMON (Continuous Monitoring)


• ISACA CISM (Certified Information Security Manager)


• ISC2 CISSP (Certified Information Systems Security Professional)


• ISC2 CISSP‑ISSMP (Information Systems Security Management Professional)


• Federal IT Security Institute FITSP‑M (Federal IT Security Professional – Manager)


• GIAC GCIA (Certified Intrusion Analyst)


• GIAC GCIH (Certified Incident Handler)


• GIAC GICSP (Global Industrial Cyber Security Professional)


• GIAC GSLC (Security Leadership)

OR This requirement can be met through:

• ABachelor’s Degreein Cybersecurity, Computer Science, IT, or a related field

Experience

• 2-5 yearsof professional experience managing and supporting enterprise-levelIT environments

Technical Skills

• Deep understanding of security frameworks, including NIST 800-53, RMF, and/or DoD 8510.01


• Experience developing and maintaining System Security Plans (SSPs) and managing POA&Ms for compliance and audit purposes


• Proficiency with vulnerability scanning tools and security analysis platforms, such as Nessus, ACAS, or Qualys


• Knowledge of security controls implementation and system hardening using DISA STIGs or CIS Benchmarks for platforms and network-enabled devices


• Familiarity with monitoring tools such as Splunk, SolarWinds, or other SIEM solutions for proactive security monitoring and incident management


• Strong understanding of Windows Server and Active Directory security, including account policy configurations and group policy enforcement


• Basic knowledge of Red Hat Enterprise Linux (RHEL) for security configurations and patching


• General understanding of networking concepts, security configurations, and protocols (e.g., TCP/IP, VLANs, IPsec, firewalls)


• Ability to conduct risk assessments, analyze vulnerabilities, and make actionable recommendations to remediate threats


• Strong analytical and technical writing skills for maintaining security documentation, incident reports, and audit artifacts

Preferred Certifications (In Addition to CWF Requirements)

• Certified Information Systems Security Professional (CISSP) or equivalent advanced certifications


• Knowledge of continuous monitoring tools and automated compliance tracking systems


• Familiarity with encryption standards, PKI infrastructures, and secure key management practices


• Hands-on experience with virtualized environments and hyper-converged platforms, such as VMware or Nutanix


• Familiarity with ITIL v4 frameworks for managing IT operations and processes

Clearance Requirement

• ActiveTS/SCIclearance with the ability to obtain and maintain aTS/SCI with Poly


• Candidate must be a US Citizen

Work Environment and Notes

• On-Site Work:All work must be conductedon-sitein Springfield, VA


• Program Scope:Supports on-premises enterprise IT environments, including virtualized Windows servers, MS SQL Server databases, and networking layers

Subcontractor Role

Responsibilities and compensation vary based on the subcontract agreement, with a competitive salary aligned to market rates and role-specific requirements.

Target salary range: $100,001 - $140,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.