Information System Security Officer

Job Description

Job Description

Position Title: Senior Information Systems Security Officer (ISSO)
Location: Scottsdale, AZ (Onsite)
Clearance Requirement: U.S. Citizen, active DoD Secret clearance or higher
Job Type: Full-Time

Position Overview:

SASSI is seeking an experienced Senior Information Systems Security Officer (ISSO) to support a DoD customer in Scottsdale, AZ. This role plays a critical part in securing systems across on-prem and commercial cloud environments, supporting initial system delivery, authorization, and ongoing cybersecurity efforts.

The ideal candidate holds a CISSP or CISM certification and brings 5–10 years of relevant cybersecurity or IT experience. You’ll work closely with the ISSM, System Owner, and Authorizing Officials, contributing to the development and maintenance of authorization documentation and ongoing security posture.

Key Responsibilities:

• Collaborate with the Information System Security Manager (ISSM), Information System Owner (ISO), and DoD Authorizing Official team.
• Develop, update, and maintain system security documentation including the SSP, SCTM, and RMF Body of Evidence.
• Ensure assigned systems maintain an appropriate security posture.
• Prepare systems for RMF assessments in accordance with NIST SP 800-37, 800-53, and related guidance.
• Identify security deficiencies and support resolution via POA&Ms and risk acceptance documentation.
• Monitor systems continuously to ensure compliance with the authorization package.
• Assist with system administration and the maintenance of cybersecurity tools (e.g., audit logs, vulnerability management, endpoint protection).
• Support change management processes and evaluating the security impact of proposed changes.
• Conduct regular audit log reviews (daily, weekly, monthly) and track findings.
• Participate in engineering and integration efforts across the customer’s production environment.
• Communicate clearly and professionally with both government and contractor audiences, in writing and verbally.

Basic Qualifications:

• U.S. Citizenship and active DoD Secret clearance (or higher)
• DoD 8570.01-M / DoD 8140.01-compliant certification (IAT Level II, IAM Level II, or IASAE Level II)
• Bachelor’s degree in IT, Cybersecurity, Computer Science, Engineering, or related field with 4+ years of relevant experience
  Strong working knowledge of RMF, ICD 503, NIST SP 800-53, and JSIG/DJSIG
• Familiarity with DoD system authorization processes

Preferred Qualifications:

• Experience with Windows, Linux, UNIX, Cloud platforms, Cisco, SQL/Oracle databases, and virtual environments
• Proficiency in cybersecurity tools for vulnerability scanning, patching, audit management, and endpoint protection

Work Schedule:

• 8-hour shift, Monday–Friday
• Onsite support required in Scottsdale, AZ