Information System Security Officer (ISSO) - Remote

Posted 4 Days Ago
Be an Early Applicant
Hiring Remotely in Washington, DC, USA
In-Office or Remote
100K-115K Annually
Mid level
Information Technology • Software • Cybersecurity
The Role
Supports federal cybersecurity compliance and system security activities, including RMF assessment and authorization, SSP development, vulnerability assessments, POA&M tracking, audit remediation, training compliance, security control implementation, and leadership reporting. The role collaborates with engineers, administrators, and stakeholders to maintain system authorization and alignment with RMF, NIST, and FISMA requirements.
Summary Generated by Built In

Location: Remote (U.S.-Based)
Clearance Requirement: Ability to Obtain and Maintain a Public Trust Clearance
Salary Range: $100,000 to $115,000

Who We Are

RCG is a growing federal contracting company proudly Certified™ as a Great Place to Work®. We deliver innovative technology and mission support services that help federal agencies succeed while fostering a culture of collaboration and excellence.

The Opportunity

We are currently seeking an Information System Security Officer (ISSO) to support a federal government customer.

This is a remote position supporting cybersecurity, compliance, and system security activities across federal environments. This role supports both hands-on RMF execution and security compliance efforts, ensuring systems remain authorized and aligned with federal requirements.

What You’ll Do

  • Support Assessment & Authorization (A&A) activities to maintain system accreditation and acceptable risk levels
  • Work with system engineers and administrators to develop corrective action plans based on internal and external audit findings
  • Perform routine self-assessment audits to ensure compliance with federal and agency security requirements
  • Provide tracking, coordination, and reporting for cybersecurity training compliance activities
  • Develop and maintain system security plans (SSPs) and other required security documentation
  • Perform or interpret vulnerability assessment scans and track mitigation actions with system teams
  • Manage and track POA&M activities and remediation progress
  • Collaborate with engineers, administrators, and stakeholders to ensure security controls are implemented and maintained
  • Provide input through reports, briefings, and documentation to support compliance and leadership visibility

What We’re Looking For

Required Qualifications:

  • Must be able to pass a public trust background check
  • 3–5+ years of experience in IT or cybersecurity roles, with at least 1 year supporting ISSO or security compliance functions
  • Bachelor’s degree in IT, Cybersecurity, Computer Science, Business, or related field
    OR Associate’s degree with relevant experience and certification
    OR additional relevant experience in lieu of degree
  • Knowledge of federal cybersecurity frameworks and compliance requirements (RMF, NIST, FISMA)
  • Experience with vulnerability scanning, assessment, and remediation tracking
  • Experience developing or reviewing security documentation and system security plans
  • Strong written and verbal communication skills

Preferred Qualifications:

  • DoD 8570/8140 certification (Security+, CISSP, or equivalent)
  • Experience with ACAS, Nessus, or similar tools
  • Familiarity with eMASS or similar A&A tools
  • Experience supporting federal IT or cloud-based environments

Work Environment

This is a remote position. Occasional travel or on-site support may be required based on program needs.

Please Note

Due to the secure nature of this government agency, all candidates must be U.S. citizens and be able to obtain a public trust clearance.

The successful candidate will receive a contingent offer based on the outcome of a government background investigation. This process may take several weeks, and candidates cannot begin employment until the background check is successfully completed.

Why You’ll Love Working Here

  • Competitive compensation
  • Remote work with occasional travel to the WDC based office
  • Comprehensive benefits package
  • Growth opportunities in federal cybersecurity
  • Supportive, people-first culture
  • Certified™ as a Great Place to Work®

Equal Employment Opportunity

RCG is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to protected status

Skills Required

  • Ability to pass a Public Trust background check
  • U.S. citizenship
  • 3–5+ years of experience in IT or cybersecurity roles
  • At least 1 year supporting ISSO or security compliance functions
  • Bachelor's degree in IT, Cybersecurity, Computer Science, Business, or a related field; alternatively, an associate degree with relevant experience and certification, or additional relevant experience in lieu of a degree
  • Knowledge of federal cybersecurity frameworks and compliance requirements, including RMF, NIST, and FISMA
  • Experience with vulnerability scanning, assessment, and remediation tracking
  • Experience developing or reviewing security documentation and system security plans
  • Strong written and verbal communication skills
  • DoD 8570/8140 certification, such as Security+, CISSP, or equivalent
  • Experience with ACAS, Nessus, or similar tools
  • Familiarity with eMASS or similar assessment and authorization tools
  • Experience supporting federal IT or cloud-based environments
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The Company
80 Employees
Year Founded: 1987

What We Do

Reston Consulting Group, Inc. (dba RCG, Inc.) is a minority- and woman-owned IT services company that delivers network design, engineering, integration, operations, and security solutions. Founded in 1987, it supports government and commercial clients through IT infrastructure, data-center consolidation and virtualization, service-desk, CIRT, and cybersecurity services, while providing experienced technical personnel and technology-focused solutions aimed at business and mission success.

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