Senior Systems Administrator — Secure, Multi-User Ops (Air-Gapped)

Lockheed Martin; Boulder (CO); On-site; USD 79,000 - 147,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Flexible work arrangements (e.g., 4x10

401(k) match

Paid time off

Job summary

Lockheed Martin's NGG team is seeking an experienced System Administrator to ensure smooth operation of multi-user computer systems, including classified environments. You will coordinate with network admins, manage user access, maintain documentation, and deploy system-wide software while optimizing performance and backups.

You will work across Linux and Windows servers, allocate storage, evaluate vendor products, and help develop policies for computing resource use.

Qualifications

• Active SECRET clearance with eligibility to obtain TS/SCI clearance.
• Bachelor’s Degree in Engineering, Computer Science, or related field; or equivalent work experience.
• DoD 8572 qualified certification (e.g., CompTIA Security+ or equivalent).
• Some experience administering Linux and Windows server environments.
• Proven experience in a multi-user, multi-environment system administration role.

Responsibilities

• Maintain and operate multi-user computer systems in a classified/air-gapped environment.
• Coordinate with network administrators to ensure system stability and security.
• Set up administrator and service accounts; manage user access and permissions.
• Maintain accurate system documentation and operational procedures.
• Monitor and tune system performance across Linux and Windows server environments.
• Install, configure, and update system-wide software and utilities.
• Allocate and manage mass storage space and storage resources.
• Interact with end-users to assess needs and evaluate vendor products.
• Research and recommend hardware and software purchases.
• Coordinate installation of new systems and software upgrades; implement and test backup and recovery procedures.
• Develop, enforce, and monitor policies and standards for computing resource allocation.

Skills

System administration

Linux administration

Windows server administration

Security clearance

Multi-user environment experience

Education

Bachelor’s degree in Engineering, Computer Science, or related field; or equivalent

DoD 8572 certification (e.g., Security+)

Tools

VMware

KVM

NetApp

Nimble

Active Directory

Ansible

Puppet

Chef

Python

Bash

PowerShell

Job description

Lockheed Martin's NGG team is seeking an experienced System Administrator to ensure smooth operation of multi-user computer systems, including classified environments. You will coordinate with network admins, manage user access, maintain documentation, and deploy system-wide software while optimizing performance and backups.

You will work across Linux and Windows servers, allocate storage, evaluate vendor products, and help develop policies for computing resource use.