Senior Systems Administrator – Secure Infra & Cloud

Leidos; Fort Meade (MD); On-site; USD 92,000 - 167,000; Full time

Benefits offered by this job

Paid Time Off

11 paid Holidays

401K with 6% company match

Flexible Schedules

Discounted Stock Purchase Plans

Technical Upskilling

Education and Training Support

Parental Paid Leave

Job summary

Leidos is seeking a Systems Administrator to provide hands-on administration, maintenance, and troubleshooting for mission-critical IT systems in secure environments. The role emphasizes Linux/Windows management, security, and system hardening in a DoD context.

You will configure core enclave services, deploy virtualized environments, and ensure system availability while adhering to SSPs and compliance standards. Fort Meade location supports classified operations with cross-functional teams.

Qualifications

• Hands-on administration, maintenance, and troubleshooting for mission-critical IT systems in secure environments.
• Strong Linux administration experience with networking, virtualization, storage, and security.
• Ability to diagnose issues independently, maintain system compliance, and ensure availability.

Responsibilities

• Administer, maintain, and troubleshoot Linux and Windows systems, diagnosing and resolving issues from the operating system through the application layer.
• Install, configure, patch, upgrade, secure, and maintain Linux servers (RHEL, Rocky Linux, CentOS).
• Configure and maintain core enclave services: DHCP, DNS, domain services, identity management, authentication.
• Deploy and support virtualized and/or containerized environments, managing compute, storage, networking, and resources.
• Support storage platforms, network connectivity, interfaces, and infrastructure; troubleshoot performance and connectivity issues.
• Maintain systems per SSPs and secure administration requirements, including STE/STN activities.
• Provide day-to-day admin in classified environments, ensuring systems remain operational and compliant.

Skills

Linux administration

Networking

Security

Troubleshooting

Windows administration

DoD / classified environment

TCP/IP networking

System hardening

Education

Bachelor’s degree in a technical discipline

Five additional years of System Administration experience may be substituted for the bachelor’s degree

Tools

Docker

Podman

KVM

VMware

Proxmox

AWS

FreeIPA

LDAP

Active Directory

Job description

Leidos is seeking a Systems Administrator to provide hands-on administration, maintenance, and troubleshooting for mission-critical IT systems in secure environments. The role emphasizes Linux/Windows management, security, and system hardening in a DoD context.

You will configure core enclave services, deploy virtualized environments, and ensure system availability while adhering to SSPs and compliance standards. Fort Meade location supports classified operations with cross-functional teams.