Intermediate Systems Admin: Classified Infra & Cloud

Johns Hopkins University Applied Physics Laboratory LLC; Laurel (MD); On-site; USD 100,000 - 195,000; Full time

Job summary

Johns Hopkins University Applied Physics Laboratory (APL) seeks an Intermediate Systems Administrator to secure and optimize our IT environments across stand‑alone, networked, and secure cloud systems within Special Access and SCI facilities.

You will manage Linux/Windows, virtualization, and storage, implement patches, handle backups, and support RMF/compliance activities while maintaining documentation and security controls.

Qualifications

• Bachelor's Degree with 4+ years in CS/IT or Associate's with 5+ years experience.
• Proven ability to provide technical support and proactive system administration beyond helpdesk.
• Proficient in Linux/Windows admin, AD, and Group Policy.

Responsibilities

• Manage Linux/Windows systems, virtualization, storage, and HPC in SAP/SCI environments.
• Configure, install, maintain, document systems per baselines.
• Support VM deployment, monitoring, and maintenance with standard tools.
• Perform backups, recovery, and continuity testing to protect data.
• Administer storage devices, capacity monitoring, and backups.
• Coordinate basic network switch troubleshooting with senior staff.
• Manage users, permissions, and privileged accounts; conduct access reviews.
• Apply patches and maintain approved configuration baselines.
• Monitor health, capacity, security status; respond to alerts with fixes.
• Support RMF/authorization by maintaining docs, diagrams, evidence.

Skills

Linux administration

Windows administration

Cloud/Virtualization

Active Directory

Security/STIG

PKI/certificates

Splunk

DoD 8140 certs

TS/SCI eligibility

Networking

Education

Bachelor's Degree

Associate degree +5 years

Tools

VMware

Hyper-V

QEMU

ACAS

SCAP

Splunk

Ivanti

McAfee

Job description

Johns Hopkins University Applied Physics Laboratory (APL) seeks an Intermediate Systems Administrator to secure and optimize our IT environments across stand‑alone, networked, and secure cloud systems within Special Access and SCI facilities.

You will manage Linux/Windows, virtualization, and storage, implement patches, handle backups, and support RMF/compliance activities while maintaining documentation and security controls.