Senior ISSO (With TS/SCI and active full scope polygraph)

J&T Business Consulting; Annapolis (MD); On-site; USD 140,000 - 190,000; Full time

Job summary

J&T Business Consulting in Annapolis, MD seeks a Senior ISSO with TS/SCI and active full-scope polygraph to lead security posture, policy enforcement, and certification activities for complex information systems. The role involves coordinating ISSO duties, documenting security plans, and supporting vulnerability remediation across large IT programs.

Qualified candidates have extensive ISSO experience, strong knowledge of IAVA management, and proven abilities to lead security operations with

Qualifications

• Senior ISSO with independent or team-based security operations responsibility.
• Experience maintaining system authorization, security plans, and IA documentation.
• Proven ability to enforce policies across large software/IT programs.
• Experience with IAVA management and security scanning processes.
• Strong written and verbal communication for cross-functional teams.

Responsibilities

• Provide support for implementing and enforcing information systems security policies and methodologies.
• Assist in evaluating security solutions for processing multiple information types.
• Maintain Configuration Management for security software, hardware, and firmware.
• Analyze threats and implement incident detection and vulnerability remediation best practices.
• Maintain records on hardware and networking devices, including upgrades.
• Support ISSM to maintain IA posture for systems/enclaves.
• Develop and update system security plans and IA documentation.
• Support IAVA management activities and security updates deployment.
• Administer authentication mechanisms for information systems.

Skills

Senior ISSO experience

TS/SCI with polygraph

ISSO ownership of security posture

IAVA management tooling

SSP documentation

Security policy enforcement

Security evaluations of software

Incident detection and remediation

Interpersonal communication

Configuration management for security

Education

Bachelor's degree in a related field

Tools

Security tooling

Job description

Senior ISSO (With TS/SCI and active full scope polygraph)

Annapolis, United States | Posted on 08/20/2026

• Provide support for implementing and enforcing information systems security policies, standards, and methodologies.
  
• Assist in the evaluation of security solutions to ensure they meet security requirements for processing multiple types of information.
  
• Assist with the Configuration Management for information system security software, hardware, and firmware.
  
• Analyze threats and develop and implement best practice methodologies for incident detection, reporting, and vulnerability remediation.
  
• Maintain records on workstations, servers, routers, firewalls, intelligent hubs, network switches, etc. to include system upgrades.
  
• Evaluate security solutions to ensure they meet security requirements for processing information.
  
• Maintain operational security posture for information systems.
  
• Provide support to the Information System Security Manager (ISSM) for maintaining the appropriate operational IA posture for a system/program/enclave.
  
• Develop and maintain documentation for Certification & Accreditation in accordance with specified policies.
  
• Develop and update system security plans and other IA documentation.
  
• Provide support for Information Assurance Vulnerability Alerts (IAVAs) management (initiating IAVA responses and system security scans, completing remediation, extending IAVA patches and security updates to designated sites, etc.).
  
• Provide CM for security-relevant information system software, hardware, and firmware.
  
• Develop system security policy and ensure compliance.
  
• Administer the user identification and authentication mechanisms of the Information System.
  

Required Skills

• Currently serving as a Senior Information Systems Security Officer (ISSO)
  
• Recently functioning in a Senior ISSO capacity with ownership of system security posture and compliance activities
  
• Must have at least 10 years of experience as an ISSO working independently, and/or on teams maintaining secure information system operations in isolated, connected, and standalone environments.
  
• Must have at least 5 years of experience using tools to support IAVA management.
  
• Must have at least 5 years of experience using tools to support the preparation, maintenance, and management of SSPs and other security-related documentation.
  
• Demonstrated knowledge of and experience with several of the following: current security tools; hardware/software security implementation; communication protocols; and encryption techniques/tools.
  
• In-depth experience completing security evaluations of software systems or architectures to ensure they meet security requirements.
  
• In-depth experience proposing, coordinating, implementing, and enforcing information systems security policies, standards, and methodologies, preferably on a large software or IT program.
  
• Demonstrated experience performing day-to-day security operations of large, complicated information and information processing systems.
  
• Must be committed to developing and adhering to best practices.
  
• Must possess a high level of self-initiative and must be a solutions-oriented team player.
  
• Must have excellent interpersonal skills.
  
• Active TS/SCI security clearance with a current polygraph is required
  

Desired Skills

• Bachelor's degree in a related field and at least 12 years of relevant experience.
  
• Extensive experience as an Information Systems Security Officer on large software development and integration programs.