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

Peraton; Huntsville (AL); On-site; USD 146,000 - 234,000; Full time

Job summary

Peraton is seeking a Sr Information Systems Security Officer - Cloud in Huntsville, AL to support Federal Strategic Cyber programs. You will guide RMF-based system categorization, advise on security controls, and oversee lifecycle deliverables while maintaining compliance and risk management documentation.

Candidates should have 9+ years in CS/cybersecurity with 7+ as an ISSO, hold TS/SCI clearance, and possess cloud security certifications (CISSP or equivalent plus AWS CCSP/Azure/GCP).

Qualifications

• Bachelor’s degree in CS, business management, or IT related field.
• 9+ years in CS or cybersecurity with 7+ as ISSO at a cleared facility.
• At least one of CISSP, GISP, or CASP+/SecurityX with cloud certs (AWS Security Specialty, CCSP, AWS SA, AZ-500, or Google Cloud Security).
• Must meet DoD 8140.03 advanced proficiency for ISSM with listed certifications/education.
• Active TS/SCI clearance or ability to obtain a polygraph.

Responsibilities

• Guide system categorization based on mission impact and compliance.
• Advise on security controls aligned with risk appetite and compliance.
• Oversee controls across system/app lifecycles focusing on deliverables.
• Ensure security control assessments are planned, executed, and documented.
• Prepare risk management docs for system authorization and exec decisions.
• Direct monitoring/continuous assessment; collect metrics for security strategy.
• Serve as principal technical advisor on cyber risk analysis, incident response, and audits.
• Foster security awareness; provide guidance and training to team and stakeholders.
• Report status, risks, and improvement opportunities to leadership.
• Maintain RMF/NIST knowledge for continuous process improvement.

Skills

ISSO experience 7+ yrs

Security governance

RMF & NIST familiarity

TS/SCI clearance

Polygraph readiness

Cloud security certifications

CISSP

CCSP / AWS Security Specialty / AZ-500

DoD cyber professions knowledge

Education

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

Tools

Tenable Nessus

Splunk

IBM Guardium

HP Web Inspect

NMAP

Job description

Responsibilities

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

Location: Huntsville, AL

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.

Qualifications

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 from the list 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 Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Target Salary Range

$146,000 - $234,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.