Parsons Corporation Information Systems Security Officer (ISSO) in Chantilly, Virginia

Information Systems Security Officer (ISSO)


Denver, Colorado, United States

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Information Security System Officer (ISSO)

Denver, Colorado Springs, Chantilly, VA, and Los Angeles

Do you have an interest in the information security field? Do you want to work with talented security engineers who you can learn from? Do you want to work for a company that is making a difference in this world? If so we are looking for you.


Information Systems Security Officer (ISSO) is responsible for gathering information necessary to maintain a system’s security posture and help establish functioning external/internal barriers such as controlled interfaces and other security measures. They define, create and maintain the security documentation for certification and accreditation (CA) of each information system in accordance with government requirements (i.e., ICD 503). They perform research and assess the impacts on system modifications, technological advances, and malicious code. ISSOs review system’s security documentation in order to identify potential security weaknesses, recommend improvements to amend vulnerabilities, implement changes and document security relevant changes. ISSOs inform users about security measures, track CA expirations, explain potential threats, perform software scans on networks and computers for vulnerabilities, review audit data for intrusions in order to protect information and prevent unauthorized access. As a vital member of the Cyber Incident Response Team (CIRT), ISSO also participate and respond to computer security breaches and malicious code.


  • Advise the system owner regarding security considerations in applications systems procurement or development, implementation, operation and maintenance, and disposal activities (i.e., system development life cycle management)

  • Assist in the determination of an appropriate level of security commensurate with the impact level

  • Assist in the development and maintenance of system security plans and contingency plans for all systems under their responsibility

  • Participate in risk assessments to periodically re-evaluate sensitivity of the system, risks, and mitigation strategies

  • Participate in self-assessment of system safeguards and program elements and in certification and accreditation of the system

  • Notify the government of any suspected incidents in a timely manner, and assist in the investigation of incidents, as necessary

  • Maintain cooperative relationship with business partners or other inter connected systems

  • Control, label, virus scan andappropriatelytransfer data(upload/download) between information systems at varying classification levels

  • Conduct research and analysis on the impacts on system modifications, technological advances, and malicious code


Associate’s Degree or higher and at least 4 years of related experience


High school degree and 7 - 10 years of computer or network related experience


Must have a Security+ Certification for Level II ISSO position and must have a Security+ Certification and a CISSP for Level III ISSO position


  • Self-motivation and initiative

  • Sound judgment

  • Effective interpersonal and team building skills

  • Effective communication skills

  • Familiarity with conducting research and analysis

  • Familiarity with network and information systemssecurity principles and best practices

  • Familiarity with controlling, labeling, virus scanning andappropriatelytransferring data (uploading/downloading) between information systems at varying classification levels

  • Ability to engender rapport with the military, civilians, and other contractors at all levels

  • Ability toprioritize tasks

  • Familiarity with applicable NRO, IC,DoD policies, procedures and operating instructions related to information technology,information assurance, information management (IT/IA/IAM)

Candidates must have an active TS/SCI security clearance

Applicants selected for employment will be subject to a Federal background investigation and must meet additional eligibility requirements for access to classified information or materials.

All applicants must be US Citizens to be considered for the position.

Parsons is a digitally enabled solutions provider focused on the defense, security, and infrastructure markets. With nearly 75 years of experience, Parsons is uniquely qualified to deliver cyber/converged security, technology-based intellectual property, and other innovative services to federal, regional, and local government agencies, as well as to private industrial customers worldwide.

Parsons is an equal opportunity, drug-free employer committed to diversity in the workplace. Minority/Female/Disabled/Protected Veteran/LGBT.

For more about Parsons, visit and follow us on Facebook , Twitter , LinkedIn , and .

Equal Opportunity Employer Minorities/Women/Protected Veterans/Disabled