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

Peraton; Winchester (VA); On-site; USD 146,000 - 234,000; Full time

Job summary

Peraton is seeking a Sr Information Systems Security Officer to support Federal Strategic Cyber programs in Winchester, VA. You will apply cybersecurity standards and implement security controls in line with RMF and NIST guidance.

This role requires deep RMF v5 experience, policy development (SSP/SSPP), and collaboration with IT teams to remediate STIGs and manage POA&M. A TS/SCI with polygraph ability is required.

Qualifications

• Bachelor’s degree in CS/IT or related field.
• 9+ years in cybersecurity with ISSO/ISSE roles at a cleared facility.
• Active TS/SCI with the ability to obtain a polygraph.
• Must hold one of listed certifications (e.g., CISSP, CASP+).

Responsibilities

• Apply cybersecurity program standards, processes, and frameworks.
• Implement and assess controls per RMF v5 and NIST guidance.
• Develop security policies, SSP/SSPP and assess ATO artifacts.
• Collaborate with IT, translate complex tech for non-tech audiences.
• Use RMF v5 workflows and eMASS to manage status, controls, POA&Ms.
• Ensure Security Authorization documentation compliance.
• Coordinate STIG remediation with admins and developers.
• Conduct risk assessments and monitor security incidents.
• Understand network, OS, databases, and security architectures.

Skills

RMF v5

NIST SP 800-53

Security controls

STIG remediation

Education

Bachelor's degree in Computer Science / IT related discipline

Tools

Tenable Nessus

Splunk

IBM Guardium

NMAP

HP Web Inspect

Job description

Responsibilities

Peraton is seeking an Sr Information Systems Security Officerto support our Federal Strategic Cyber programs.

Location: Winchester, VA

In this role, you will:

• Apply best practices for cybersecurity program standards, processes, procedures, and industry-standard security frameworks.
• Implement and assess security controls in accordance with NIST SP 800-53, NIST SP 800-53A requirements and guidance.
• Develop security policies and procedures, CSS, SSP, SSPP, and assess ATO package artifacts.
• Apply expert knowledge of Risk Management Framework (RMF) v5 processes and workflows.
• Use eMASS to execute RMF v5 activities, document and update system status, identify and manage operational and technical security controls, assess implementation and risk, manage non-compliant and non-validated controls, manage POA&M from entry through closeout, produce reports, and track POA&M due dates.
• Complete checklists to ensure Security Authorization Process documentation is complete and complies with applicable guidance.
• Collaborate with IT counterparts, communicate complex technical information to non-technical audiences, and coordinate STIG remediation with system administrators and developers.
• Conduct risk assessments, monitor security incidents, and respond appropriately to security threats.
• Apply knowledge of network technologies and protocols, TCP/IP, operating systems, security protocols, system architecture and data flows, security categorization, requirements, configuration management processes, firewalls and configurations, intrusion detection and prevention systems, encryption techniques, Windows, Unix, Linux, databases, web servers, and other applications.

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) or Information System Security Engineer at a cleared facility.
• Must have at least 1 of the following certifications:
  • CISSP, GISP, or CASP+/SecurityX
• 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 degrees 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 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.