Sr. Cybersecurity Information System Security Officer; ISSO

Overview

Title: Sr. Cybersecurity Information System Security Officer (ISSO)

Location: Patrick SFB, FL

Job Type: Full-Time, On-site (Pending Contract Award February 27, 2026)

Clearance Requirement: Active DoD Secret clearance required

Salary: Competitive

Experience and

Certifications:

Senior ISSO — 8+ years cybersecurity/IA experience, 5+ years DoD RMF experience, CISSP or CAP (DoD 8570/8140 compliant);
Security+ CE acceptable if combined with relevant experience.

Mandatory: Considering candidates with US Citizenship only. Employer will not sponsor applicants for work visas for this position.

About the company: Since its founding in 1986, MILVETS Systems Technology, Inc. has been a reliable provider of quality services in the information and technology fields. As a Service-Disabled Veteran-Owned Small Business, certified by the Small Business Administration as a Small Disadvantaged Business, the company was founded to offer efficient, cost-effective information technology services to commercial and government clients.

Position Overview: The Senior Cybersecurity Information System Security Officer (ISSO) supports DoD information systems by ensuring compliance with Department of Defense cybersecurity policies and Risk Management Framework (RMF) requirements. This role provides senior-level cybersecurity oversight across system life cycles, supporting system authorization (ATO), continuous monitoring, and operational security for classified and unclassified systems in support of unmanned rocket launches from the Eastern Range (Cape Canaveral Air Force Station, FL).

The Senior ISSO works closely with Information System Owners (ISOs), Information System Security Managers (ISSMs), system engineers, and program leadership to manage cybersecurity risk and maintain compliance in accordance with DoD and federal regulations.

• RMF & Authorization Support:
  Lead and support Risk Management Framework (RMF) activities per DoDI 8510.01
• RMF documentation:
  Create, review, and maintain RMF documentation, including System Security Plans (SSPs), Security Assessment Plans (SAPs), Security Assessment Reports (SARs), Plans of Action and Milestones (POA&Ms), and Continuous Monitoring (CONMON) plans
• Authorization:
  Support Authority to Operate (ATO), Interim Authority to Test (IATT), and ATO renewals for DoD systems
• Lifecycle coordination:
  Coordinate with Authorizing Officials (AOs), Security Control Assessors (SCAs), and Information System Security Managers (ISSMs) throughout the authorization lifecycle

• Ensure compliance with DoD cybersecurity policies, including DoD 8500-series, NIST SP 800-53, and CNSSI 1253
• Prepare systems for eMASS submissions, audits, and inspections
• Support internal and external cybersecurity assessments, including DCMA, DCSA, and command inspections
• Interpret and apply security controls to meet mission and contractual requirements

• Execute continuous monitoring (CONMON) activities, including vulnerability scanning, STIG compliance, and security control assessments
• Track and manage vulnerabilities, findings, and POA&Ms to closure
• Monitor system changes for security impact and ensure RMF change management compliance
• Support incident response, reporting, and remediation in coordination with program and Security Operations Center (SOC) teams

• Ensure implementation and validation of DISA STIGs, SCAP scans, and security technical implementation guidance
• Review system configurations for compliance with DoD security baselines
• Coordinate with network, system, and cloud engineering teams to remediate security findings
• Support both classified and unclassified environments, as applicable

• Provide senior-level cybersecurity guidance to ISSOs and technical staff
• Serve as the primary cybersecurity advisor to program managers and system owners
• Brief leadership on cybersecurity posture, risks, and compliance status
• Contribute to program planning, security strategy, and process improvements

• Education & Experience:
  
  Bachelor’s degree in Cybersecurity, Information Technology, or related field (or…