Systems Administrator / Information Systems Security Officer (ISSO)

Leidos

Hybrid

Quick summary

Work type
Hybrid
Location
Shaw Air Force Base, SC
Salary
$73,450–$132,775 / yr
Posted
7 days ago
Nearby
7 roles within 25 mi

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $167k
This role $103k
$58k most similar roles pay here $214k

This role pays less than 95% of similar roles. Most pay $136,200–$198,775 — the shaded band above. At the midpoint, this role pays about $103k versus about $167k for comparable roles.

Based on 240 similar postings.

Employer

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations.

Leidos currently has 237 open roles on FindRole.

Listed pay typically runs $106,600–$192,700 across 230 roles with salary data.

Most-posted roles

View all roles at Leidos

At a glance

TL;DR · Systems Administrator / Information Systems Security Officer (ISSO)

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Leidos’ Defense Sector seeks a Systems Administrator / Information Systems Security Officer (ISSO) to join the Sentinel G2 Army MI Enterprise team at Shaw Air Force Base, SC. This role involves providing comprehensive IT support from Tier I through Tier III, resolving complex hardware and software issues while managing enterprise server data storage environments. The candidate will work with technologies such as Microsoft Outlook, SharePoint, Teams, Power Apps, PKI encryption, Office 365 integration, and Azure/Intune, ensuring strict compliance with DoD security standards. Responsibilities include maintaining system security posture, tracking ACAS scan results, creating POA&M items, and developing policies to comply with RMF and SDLC requirements. The ideal candidate has a hybrid skill set combining technical support expertise with rigorous audit discipline, requiring experience in Microsoft Windows 10, Power Apps development, and NIST 800-53 security controls.

Skills

Microsoft Outlook SharePoint Teams Power Apps Azure Intune NetApp ONTAP Windows Server PKI ACAS Visio Word PowerPoint Risk Management Framework NIST 800-53 eMASS Microsoft PowerShell NetApp Data Administrator

What you'll do

  • Deliver technical support from Tier I to Tier III across multiple networks and systems.
  • Administer enterprise server data storage environments and resolve complex system issues.
  • Maintain security posture on all systems in accordance with DoD requirements.
  • Review ACAS scan results weekly, ensuring violations are mitigated promptly.
  • Develop and update organizational policies and procedures for RMF compliance.
  • Support the Information System Security Manager (ISSM) in maintaining IA posture.
  • Create and track Plans of Action and Milestones (POA&M) for security controls.

What we're looking for

  • Active IAT Level II baseline certification (Security+, CASP or higher) required.
  • At least 4 years of experience in IT systems administration and security compliance.
  • Solid understanding and application of Risk Management Framework (RMF) using NIST 800-53 controls.
  • Hands-on experience developing low-code applications in Power Apps to streamline IT workflows.
  • Strong troubleshooting skills for complex hardware, software, and network issues across multiple environments.

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