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Isso System Administrator Jobs (NOW HIRING)

ManTech

System Administrator

Eglin, FL · On-site

The successful candidate will act as a systems Administrator for the Partner Support Complex. This ... May work closely with the ISSO for data transfers and media creation. * Facilitate and coordinate ...

ManTech

System Administrator

Eglin, FL · On-site

The System Administrator's primary function is to support the United States Air Force's 53rd Wing ... May work closely with the ISSO for data transfers and media creation. * Facilitate and coordinate ...

ManTech

System Administrator

Eglin, FL · On-site

The System Administrator's primary function is to support the United States Air Force's 53rd Wing ... May work closely with the ISSO for data transfers and media creation. * Facilitate and coordinate ...

CACI

Linux System Administrator

Sarasota, FL

Linux System Administrator Job Category: Information Technology Time Type: Full time Minimum ... Perl, Bash) Experience with DevSecOps and respective tools Experience supporting ISSO and ISSEs via ...

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How much do isso system administrator jobs pay per year?

As of Sep 14, 2026, the average yearly pay for isso system administrator in the United States is $88,927.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,000.00 and $104,000.00 per year, depending on experience, location, and employer.

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Infographic showing various Isso System Administrator job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 12% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $88,927 per year, or $42.8 per hour.

Information System Security Officer (ISSO) / System Administrator

Huntsville, AL • On-site

Sanmina Corporation
Manufacturing • 10K+ employees
Learn more about Sanmina Corporationexternal

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Posted 13 days ago

Sanmina rating

6.3

Company rating: 6.3 out of 10

Based on 40 frontline employees who took The Breakroom Quiz

Job description

Information System Security Officer (ISSO) / System Administrator - (113593)

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Category (For Job Seekers)

Defense & Aerospace, Information Technology, Professionals

Location

Job Description

Information System Security Officer (ISSO) / System AdministratorJob Purpose

The Information System Security Officer (ISSO) / System Administrator serves as the primary cybersecurity and compliance lead for the organization, ensuring systems adhere to Risk Management Framework (RMF) and Defense Counterintelligence and Security Agency (DCSA) security requirements. This role is primarily focused on strategic cybersecurity alignment, system accreditation, continuous monitoring, and risk management, while also providing operational system administration support and maintenance for desktop and standalone computing environments.

Key ResponsibilitiesCybersecurity & Compliance (Primary)
  • Develop, maintain, and update System Security Plans (SSPs) and associated authorization artifacts for standalone and networked systems.
  • Ensure RMF security controls are properly implemented, validated, and loaded into the Enterprise Mission Assurance Support Service (eMASS).
  • Perform weekly security audits and log reviews using Splunk Enterprise or native monitoring tools as required by DCSA; execute corrective actions as needed.
  • Conduct vulnerability scanning and management using Tenable Nessus, coordinating patching and remediation strategies.
  • Apply, enforce, and verify Security Technical Implementation Guides (STIGs) across operating systems and applications.
  • Create, track, and manage Plans of Action and Milestones (POA&Ms) through resolution.
System Administration & Operations (Secondary)
  • Perform system administration functions, including user account management and access controls on standalone computers.
  • Provide tier 2/3 technical support, computer setup, hardware/software troubleshooting, and root-cause resolution.
  • Configure and administer Group Policy Objects (GPOs) to enforce security configurations and user policies.
  • Execute regular system backups, disaster recovery tests, and routine operating system updates.
  • Assist in maintaining virtual machine (VM) environments.
Qualifications & Requirements
  • Clearance: Active DoD Secret clearance.
  • Education: Bachelor’s Degree in Information Technology, Cybersecurity, Computer Science, or a related field (or equivalent work experience).

Experience:

  • o 3+ years of dedicated experience acting as an ISSO or in a direct cybersecurity compliance role.
  • o Demonstrated experience with DoD or DCSA accreditation processes and SSP development.
  • o Deep understanding and hands-on experience with the Risk Management Framework (RMF) and eMASS.
  • o Proficiency in tracking and resolving POA&Ms.

Certification: Current CompTIA Security+ (or equivalent DoD 8140/8570 IAT II / IAM I baseline certification).

Core Technical Skills
  • Experience using Nessus / Security Center for vulnerability scanning.
  • Working knowledge of audit log review platforms like Splunk Enterprise.
  • Working knowledge of Windows desktop administration, Group Policies, and standalone computer environment.
Preferred Qualifications
  • Hands-on experience performing dual ISSO and System Administrator duties in a classified or sensitive environment.
  • Current Windows Operating System certification.
  • Experience with virtual machine configuration and backup management platforms.
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