Senior System Administrator IV — Secure Enterprise IT

Independent Software; Fort Meade (MD); On-site; USD 120,000 - 150,000; Full time

Job summary

Independent Software seeks a System Administrator Level 4 to support mission-critical IT systems in highly secure environments. You will work across Linux and Windows, lead troubleshooting, and manage configurations across enterprise infrastructure.

Collaborate with engineers, ISSOs, and leadership to maintain compliance and resolve complex issues in classified settings, ensuring reliable operations and security.

Qualifications

• Bachelor’s degree in a technical field or equivalent experience.
• 20+ years of System Administrator experience on similar programs.
• 8+ years supporting IT Service Management (ITSM).
• Active DoD 8570 / 8140 IAT Level III certification required to start.
• ITIL v4 certification.
• OS certification.

Responsibilities

• Provide Tier 1–3 support for system issues across client, server, storage, and network environments.
• Configure, manage, and maintain Linux and Windows operating systems.
• Monitor system performance, troubleshoot issues, and implement reliability improvements.
• Support Desktop Services, including VDI and thin clients.
• Coordinate with ISSO and leadership on security compliance and changes.
• Communicate system status and updates to stakeholders.

Skills

Linux admin

Windows admin

Troubleshooting

ITSM

Networking & storage

Patch management

Education

Bachelor’s degree in a technical field

20+ years System Administrator experience

8+ years ITSM experience

Active DoD 8570 / 8140 IAT Level III certification

ITIL v4 Certification

OS Certification

Job description

Independent Software seeks a System Administrator Level 4 to support mission-critical IT systems in highly secure environments. You will work across Linux and Windows, lead troubleshooting, and manage configurations across enterprise infrastructure.

Collaborate with engineers, ISSOs, and leadership to maintain compliance and resolve complex issues in classified settings, ensuring reliable operations and security.