Sr Information Systems Security Officer (ISSO) – Cloud, Advisor - TS/SCI w/poly

Peraton; Washington (District of Columbia); On-site; USD 140,000 - 190,000; Full time

Job summary

Peraton is seeking a Senior Information Systems Security Officer - Cloud to support Federal Strategic Cyber programs in Washington, DC. The role focuses on risk management, RMF, and secure cloud implementations across lifecycles.

The ideal candidate has extensive ISSO experience in cleared environments, multiple security certifications, and familiarity with Nessus, Splunk, Guardium, and related tools. A TS/SCI clearance with polygraph eligibility is required.

Qualifications

• Bachelor’s degree in Computer Science, Business Management, or IT related discipline.
• Minimum of 9 years of work experience in a Computer Science or Cybersecurity related field with at least 7 of those years serving as an Information Systems Security Officer (ISSO) at a cleared facility.
• Must have at least 1 of the following certifications: CISSP, GISP, or CASP+/SecurityX.
• In addition, must have one cloud certification: AWS Security Specialty, CCSP, AWS SA Associate, AZ-500, or Google Professional Cloud Security Engineer
• Must meet DoD 8140.03 Advanced proficiency aligned to Information Systems Security Manager (Work Role 722). Must have at least 1 of the following certifications or advanced education listed below: CISM - Certified Information Security Manager; CISSP - Certified Information Systems Security Professional; CISSP-ISSMP; FITSP-M; GCIA; GCIH; GICSP; GSLC; Doctorate in various fields; Masters in several fields.
• Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, Splunk, IBM Guardium, HP Web Inspect, Network Mapper (NMAP), and/or similar applications.
• Active TS/SCI security clearance with the ability to obtain a polygraph.

Responsibilities

• Guide system categorization efforts to ensure all information systems are appropriately classified based on mission/business impact and regulatory requirements.
• Advise on the selection, tailoring, and documentation of security controls aligned with system categorizations, risk appetite, and compliance requirements.
• Oversee the implementation of technical, operational, and management controls throughout system and application lifecycles, with a particular focus on quality and completeness of all deliverables.
• Ensure comprehensive security control assessments are planned, executed, and documented to validate the effectiveness of implemented safeguards.
• Prepare risk management documentation for system authorization and executive decision-making.
• Direct ongoing monitoring and continuous assessment activities, collecting metrics to adjust security strategies and ensure sustained compliance.
• Serve as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts.
• Foster a culture of security awareness, providing technical guidance and training to both team members and stakeholders.
• Track, report, and communicate status, risks, and improvement opportunities related to security engineering activities to leadership and stakeholders.
• Maintain up-to-date knowledge of RMF, NIST guidance, and industry best practices in support of continuous process improvement.

Skills

ISSO experience

CISSP

GISP

CASP+/SecurityX

DoD 8140.03 proficiency

Cloud security certs

Tenable Nessus

Splunk

IBM Guardium

HP WebInspect

NMAP

Education

Bachelor’s degree in Computer Science, Business Management, or IT related discipline

Tools

Tenable Nessus

Splunk

IBM Guardium

HP WebInspect

NMAP

Job description

Required Qualifications:

• Bachelor’s degree in Computer Science, Business Management, or IT related discipline.
• Minimum of 9 years of work experience in a Computer Science or Cybersecurity related field with at least 7 of those years serving as an Information Systems Security Officer (ISSO) at a cleared facility.
• Must have at least 1 of the following certifications: CISSP, GISP, or CASP+/SecurityX
  • In addition, must have one cloud certification:
    • AWS Security Specialty, CCSP, AWS SA Associate, AZ-500, or Google Professional Cloud Security Engineer
• Must meet DoD 8140.03 Advanced proficiency aligned to Information Systems Security Manager (Work Role 722). Must have at least 1 of the following certifications or advanced education listed below:
  • CISM - Certified Information Security Manager
  • CISSP - Certified Information Systems Security Professional
  • CISSP-ISSMP - Certified Information Systems Security Professional - Information Systems Security Management Professional
  • FITSP-M - Federal IT Security Professional-Manager-NG
  • GCIA - GIAC Certified Intrusion Analyst
  • GCIH - GIAC Certified Incident Handler
  • GICSP - Global Industrial Cyber Security Professional
  • GSLC - GIAC Security Leadership Certification
  • Doctorate - Computer Science
  • Doctorate - Cybersecurity
  • Doctorate - Data Science
  • Doctorate - Information Systems
  • Doctorate - Information Technology
  • Doctorate - Software Engineering
  • Master of Science - Strategic Information and Cyberspace Studies (NDU CIC)
  • Masters - Computer Science
  • Masters - Cybersecurity
  • Masters - Data Science
  • Masters - Information Systems
  • Masters - Information Technology
  • Masters - Software Engineering
• Familiarity with the use and operation of security tools including Tenable Nessus and/or Security Center, Splunk, IBM Guardium, HP Web Inspect, Network Mapper (NMAP), and/or similar applications.
• Active TS/SCI security clearance with the ability to obtain a polygraph.

Peraton is seeking an Sr Information Systems Security Officer - Cloudto support our Federal Strategic Cyber programs.

Location: Washington, DC

In this role, you will:

• Guide system categorization efforts to ensure all information systems are appropriately classified based on mission/business impact and regulatory requirements.
• Advise on the selection, tailoring, and documentation of security controls aligned with system categorizations, risk appetite, and compliance requirements.
• Oversee the implementation of technical, operational, and management controls throughout system and application lifecycles, with a particular focus on quality and completeness of all deliverables.
• Ensure comprehensive security control assessments are planned, executed, and documented to validate the effectiveness of implemented safeguards.
• Prepare risk management documentation for system authorization and executive decision-making.
• Direct ongoing monitoring and continuous assessment activities, collecting metrics to adjust security strategies and ensure sustained compliance.
• Serve as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts.
• Foster a culture of security awareness, providing technical guidance and training to both team members and stakeholders.
• Track, report, and communicate status, risks, and improvement opportunities related to security engineering activities to leadership and stakeholders.
• Maintain up-to-date knowledge of RMF, NIST guidance, and industry best practices in support of continuous process improvement.