• Location: Herndon, Virginia
  • Type: Contract
  • Job #2021

Title: Junior ISSO – Minimum 3 years experience

Location: Herndon, VA

*Clearance: *Active TS/SCI w/ Poly needed to apply *


Company Overview:

Cornerstone Defense, in partnership with our military, intelligence, and civil government customers, supports U.S. operations worldwide through the use of many different types of intelligence, satellite, and cyber technologies. Cornerstone’s Intelligence Sector provides solutions to the United States Government for information collection, operations, exploitation and dissemination, and research activities. Our Team specializes in software development, cloud architecture, systems and network engineering, systems integration, agile management, as well as targeting operations and intelligence analysis. Our support to our mission customers includes cyber network operations, exploitation and defense, signals intelligence, human intelligence, and critical missions and networks.

General Requirements:

  • Conduct security analysis of operational, administrative and development environments to assess compliance with industry and government standards
  • Implement the A&A processes for new and existing information systems
  • Facilitate development of security plans/procedures and supports Continuous Monitoring (CONMON)
  • Support configuration management and audits of assigned systems to ensure security integrity
  • Conduct risk assessments and investigations, executes appropriate risk mitigations, and support incident response activities
  • Perform periodic hardware/software inventory assessments and the disposition of old hardware
  • Interface with government customers, suppliers, and team personnel to implement protective mechanisms and ensures understanding of and compliance with security requirements
  • Provide on-call support is required as well as occasional shift and weekend work


Required Experience:

  • Implementation of security policies and system mitigations
  • Analyze vulnerabilities and mitigate identified vulnerabilities through effective risk reduction methods (patching, hardening, countermeasures)
  • Implementing Risk Management Framework with assessments and mitigations.
  • Assessing and documenting test or analysis data to show regulation compliance
  • Working with Windows, Linux and/or Unix operating system



  • Non-local travel is not expected


Security Requirements:

  • At minimum, TS/SCI with Poly
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