Cyber Infrastructure Support

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:

• Installing, configuring, maintaining, and troubleshooting Windows and Linux servers, workstations, and supporting infrastructure components.
• Performing approved software installations, upgrades, updates, removals, and configuration changes.
• Supporting operating system and application patch management activities.
• Installing and validating firmware, driver, and hardware-management updates.
• Supporting the secure transfer, validation, scanning, and installation of software and updates within classified or air-gapped environments.
• Configuring and deploying new servers, workstations, peripheral devices, and other information technology equipment.
• Performing hardware installation, replacement, troubleshooting, repair coordination, and lifecycle support.
• Configuring and administering Microsoft Windows Server operating systems and associated enterprise services.
• Supporting Microsoft Active Directory administration.
• Assisting with the development, testing, implementation, and troubleshooting of Group Policy Objects.
• Applying and validating Security Technical Implementation Guide requirements and other approved security configuration baselines.
• Using approved security and compliance tools to evaluate system configurations and identify potential vulnerabilities or configuration deficiencies.
• Coordinating with Information Assurance personnel to remediate security findings, configuration deficiencies, patching gaps, and vulnerability scan results.
• Supporting Red Hat Enterprise Linux systems.
• Supporting virtual infrastructure hosted on VMware vSphere and ESXi platforms.
• Monitoring system health, availability, performance, storage utilization, service status, and other operational indicators.
• Troubleshooting system outages, degraded performance, authentication issues, application failures, network connectivity problems, and other infrastructure incidents.
• Reviewing system, application, security, and infrastructure logs to support troubleshooting, event analysis, and incident resolution.
• Assisting with device discovery, operating system fingerprinting, service scanning, passive scanning, and other approved network or infrastructure assessment activities.
• Supporting enterprise cybersecurity and infrastructure tools used for endpoint protection, vulnerability management, compliance validation, logging, and monitoring.
• Creating and maintaining system documentation.
• Documenting completed work, technical findings, configuration changes, patching activities, incidents, and corrective actions.
• Participating in configuration management and change-control processes.
• Maintaining accurate hardware and software inventory information.
• Supporting hardware and software refresh activities.
• Assisting senior technical staff with larger projects, complex troubleshooting efforts, infrastructure upgrades, system migrations, and technology-refresh initiatives.
• Coordinating with vendors, manufacturers, and other technical support personnel to resolve hardware, software, licensing, warranty, and compatibility issues.
• Supporting internal and external audits, assessments, inspections, inventory reviews, and security-validation activities.

Basic Qualifications:

• Bachelor’s degree and 2–4 years of prior relevant experience or a master’s degree with less than 2 years of prior relevant experience.
• Current DoD 8140 IAT II CompTIA Security+ certification or an equivalent certification.
• Current Secret clearance and eligibility to obtain Top Secret clearance.
• Hands-on experience supporting information technology infrastructure, systems administration, cybersecurity operations, or a related technical discipline.

Preferred Qualifications:

• Familiarity with Windows Server installation, configuration, maintenance, patching, and troubleshooting.
• Familiarity with Microsoft Active Directory and Active Directory Users and Computers.
• Familiarity with Group Policy concepts and the application of security and configuration settings through Group Policy Objects.
• Familiarity with Red Hat Enterprise Linux or a comparable Linux operating system.
• Familiarity with VMware vSphere and ESXi virtualization technologies.