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Information Systems Security Officer; ISSO

Job in Gaithersburg, Montgomery County, Maryland, 20883, USA
Listing for: Peraton
Full Time position
Listed on 2026-06-09
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security, IT Consultant
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Information Systems Security Officer (ISSO)

Basic Qualifications:

  • US Citizenship required; active Secret clearance
  • Bachelor’s degree in Computer Science, Computer Studies, Information Security and 8 years experience or MS/MA degree in Computer Science, Computer Studies, Information Security and 6 years experience or high school diploma and 12 years experience
  • Good understanding of computer network security technologies used in the industry and related security configurations (e.g., DISA STIGs, CIS Benchmarks and settings)
  • Knowledge of the security countermeasures and overall RMF and NIST compliance guidelines
  • Must have the ability to influence system stakeholders in the execution of security and compliance requirements
  • Certifications

    Required:

    CISM;
    At least one Cloud Security Certification: AWS Cloud Practitioner, AWS Security Professional; CCSP; MS Azure Security Certification; CCSK
Preferred Qualifications
  • Certifications:

    CISA, CRISC, GSEC, CompTIA Sec+
  • Excellent communication skills
  • Ability to work effectively in diverse, multi-national and virtual environments
  • Self‑motivated and tenacious
  • Demonstrate sound judgment and integrity
  • Experience of working with Federal Information Processing (FIPS), FISMA, FedRAMP and other cyber security related laws, regulations and directives
  • Experience of presenting at client meetings
  • Experience of translating contractual security requirements to deliverables
Knowledge of Federal Government Security, industry and market trends and CS&PS business and offerings
  • Understands federal security and regulations.
  • Understands DHS’ Security Policy and has in-depth knowledge of DHS’ Security Policy 4300a.

Peraton is seeking an Information Systems Security Officer (ISSO) to join our team. The Information System Security Officer (ISSO) is part of the PERATON DHS’ Security team and plays a cybersecurity operational compliance role within the Citizen Security and Public Services Sector (CS&PS). The position is responsible for performing as a named ISSO for a Government Systems and assisting other ISSOs with end‑to‑end Governance Risk and Compliance (GRC) functions that entail security control implementation, continuous monitoring, and federal Assessment and Authorization (A&A) activities.

Day

to Day Work Responsibilities
  • Works closely under the supervision of Cybersecurity Manager and with other security personnel within Peraton CS&PS Sector to ensure operational security measures are implemented.
  • Assesses and mitigates system security risks; determines and analyzes security requirements for implementation and testing.
  • Reviews and continuously monitors implemented security controls.
  • Creates and maintains security checklists, templates, and other tools to aid in the A&A process.
  • Performs security control assessment using Agency guidelines/NIST guidance and as per continuous monitoring requirements.
  • Performs risk analyses to determine and recommend essential safeguards.
  • Proactively reviews Vulnerability Scans (Nessus, ACAS, We‑App, etc.) and mitigates system vulnerabilities and recommends compensating controls.
  • Prepares supporting materials for the security authorization package in accordance with the client contractual requirements.
  • Develops core documents such as System Security Plan, Contingency Plan, Incident Response Plan, Standard Operating Procedures, Plan of Actions and Milestones, Remediation Plans, Configuration Management Plan, etc.
  • Maintains client‑specific Plan of Action and Milestones (POA&Ms) and supports remediation activities using Information Assurance (IA) and Risk Management tools such as CSAM, eMASS, etc.
  • Maintains an inventory of hardware and software for the information system.
  • Develops, tests and trains on Contingency and Incident Response planning.
  • Experience working with the National Institute of Standards and Technology (NIST) and Federal Information Security Management Act (FISMA) requirements and reporting.
  • Experience in managing security certification and accreditation activities utilizing common control frameworks.
  • Experience with risk mitigation and selecting or designing appropriate security controls for implementation.
  • Experience applying cloud security concepts, requirements, design development, implementation, and…
Position Requirements
5+ Years work experience
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