Cyber Infrastructure Support

Description

Leidos' Corporate Information Security Office (CISO) has an opening for a Cyber Infrastructure Support professional in our Omaha, NE office. This position will support the testing, implementation, deployment, maintenance, and administration of classified cyber systems, networks, and their supporting infrastructure hardware and software.

In this role you will perform hands‑on systems administration and infrastructure support activities across Windows and Linux environments. Responsibilities include configuring and deploying hardware, installing and updating software, applying operating system and firmware updates, managing patches, implementing approved security configurations, troubleshooting technical issues, and maintaining accurate system documentation.

To be successful in this position, you must be able to work independently on moderately complex assignments while collaborating effectively with system administrators, cybersecurity personnel, engineers, program management, and other technical stakeholders. You should possess a strong technical foundation, demonstrate sound troubleshooting practices, and be willing to learn and support a broad range of infrastructure technologies within a classified, air‑gapped environment.

Location: All work will be performed on‑site in our Omaha, NE office.

Clearance: You must currently hold an active Secret clearance to qualify for consideration. You must also be eligible to obtain a Top Secret clearance post hire.

This role may include a combination of duties to maintain reliable, secure, and properly configured information systems and supporting infrastructure.

• Install, configure, maintain, and troubleshoot Windows and Linux servers, workstations, and supporting infrastructure components.
• Perform approved software installations, upgrades, updates, removals, and configuration changes.
• Support operating system and application patch management activities, including identifying applicable updates, coordinating testing, scheduling deployment, validating installation, and documenting completion.
• Install and validate firmware, driver, and hardware‑management updates for servers, workstations, storage devices, network‑connected equipment, and peripheral hardware.
• Support the secure transfer, validation, scanning, and installation of software and updates within classified or air‑gapped environments.
• Configure and deploy new servers, workstations, peripheral devices, and other information technology equipment in accordance with approved build documentation and security requirements.
• Perform hardware installation, replacement, troubleshooting, repair coordination, and lifecycle support.
• Configure and administer Microsoft Windows Server operating systems and associated enterprise services.
• Support Microsoft Active Directory administration, including user and computer objects, organizational units, security groups, permissions, and related functions using Active Directory Users and Computers and other approved administrative tools.
• Assist with the development, testing, implementation, and troubleshooting of Group Policy Objects.
• Apply and validate Security Technical Implementation Guide requirements and other approved security configuration baselines.
• Use approved security and compliance tools to evaluate system configurations and identify potential vulnerabilities or configuration deficiencies.
• Coordinate with Information Assurance personnel to remediate security findings, configuration deficiencies, patching gaps, and vulnerability scan results.
• Support Red Hat Enterprise Linux systems, including installation, configuration, patching, service management, account administration, log review, and troubleshooting.
• Support virtual…