Information Systems Security Officer (ISSO)

A growing cybersecurity firm is seeking a Junior Information System Security Officer to support the security and compliance of enterprise systems. This is a growth oriented role focused on learning RMF processes, supporting audits, and working with system owners and engineers. This is a 6 month contract to hire opportunity. Additional Details Eligible for Public Trust clearance Hybrid schedule with 3 days onsite in Washington DC Responsibilities Support the security point of contact for assigned

ISSO Location: WASHINGTON, DC, United States Work Location: Hybrid 3 days onsite in Washington, DC and 2 days remote (Wednesday is a mandatory onsite day) - Non-negotiable Interview Process:1st Round: Teams Video Interview2nd Round: In-Person Interview at the client site - Non-negotiableSecurity Requirement: Candidate must be eligible to obtain And/OR hold a Public Trust clearance Description This senior-level role is responsible for ensuring the security and compliance of agency information sys

ISSO Location: Washington DC Clearance: If applicable Employment Type: Full-Time Overview We are seeking a ISSO to support enterprise security operations, continuous monitoring, and incident response. This role requires deep expertise in federal cybersecurity frameworks and hands-on experience with modern security tools and cloud environments. Key Responsibilities : Conduct ongoing security assessments aligned with NIST, FISMA, and CISA guidelines Engineer and maintain secure systems and infr

Job Family: Cyber Consulting Travel Required: Up to 10% Clearance Required: Active Top Secret SCI (TS/SCI) As a Senior Consultant in Guidehouse's cyber practice, you will lead and execute core security compliance and RMF activities for classified federal systems. You will ensure systems maintain an appropriate security posture, support continuous monitoring, and assist with security assessments and incident coordination. You'll combine hands on ISSO experience with client-facing consulting: t