Information System Security Officer (ISSO) with Top Secret/SCI Clearance

CALNET Inc.•Huntsville, AL

1d•Onsite

About The Position

CALNET, Inc. is seeking a talented Information System Security Officer (ISSO) with Top Secret/SCI Clearance to join our team in Huntsville, Alabama. As a Prime Government Contractor for a major government institution, the ISSO will be responsible for guiding IT systems through the entire Risk Management Framework (RMF) lifecycle to achieve and maintain the Authority to Operate (ATO). CALNET, Inc. is a growing company in the Technology, Intelligence Analysis, and Language Services consulting arena, known for employing best practices and world-class technologies.

Requirements

CompTIA Security+, CCNA, RHCSA, MCSA or any IAT Level II cert
A Bachelor’s degree from an accredited institution in Information Technology, Cybersecurity, Business Management, or a related field; or experience equal to.
US Citizen
Active Top Secret/SCI Clearance
Minimum 5+ years of hands-on experience dedicated to applying RMF to complex DoD IT systems.
Demonstrated mastery of eMASS, vulnerability scanning tools (e.g., ACAS/Nessus), COMSEC, and security compliance checkers (e.g., SCAP).

Responsibilities

Lead all aspects of the RMF process, from system categorization and security control selection to implementation and assessment.
Develop, maintain, and update all required RMF documentation, including the System Security Plan (SSP), Security Assessment Report (SAR), and Plan of Action & Milestones (POA&M).
Manage the system's security posture within the Enterprise Mission Assurance Support System (eMASS), ensuring all data is accurate and up to date.
Implement and manage a robust continuous monitoring strategy to actively assess security control effectiveness, track vulnerabilities, and manage configuration changes.
Serve as the primary security advisor to the system owner and liaise with the Authorizing Official (AO) and other key stakeholders to ensure a clear understanding of system risks and compliance status.