System Administrator

About the role

Oceaneering International is seeking a Systems Administrator to partner on a large enterprise IT contract for the DOD. The Systems Administrator provides technical system administration and operations.

Responsibilities

• Provides technical system administration and operations for enterprise network infrastructure.
• Maintains enterprise network infrastructure to ensure proper configuration, availability, performance, capacity, and maintenance (including application of the latest patches and upgrades).
• Monitors technology obsolescence, manages upgrades, and evaluates alternatives across on-premises and IT infrastructures, both virtual and physical.
• Partners with a small, agile, embedded team that provides on-site support, including system administration, network administration, information assurance, communication, and infrastructure.
• Resolves network problems in cooperation with senior network engineers.
• Troubleshoots problems using tools and routine procedures; escalates as appropriate.
• Executes scheduled maintenance routines in accordance with standard procedures.
• Administers, maintains, and troubleshoots Microsoft Active Directory infrastructure, including user and group account management, OU structure, and Group Policy Objects (GPOs).
• Monitor domain controllers, replication, and DNS configurations to ensure high availability and performance of the AD environment.
• Implement and manage Group Policy to enforce security settings, software deployment, and user environment configurations.
• Collaborate with Cyber teams to implement role-based access control (RBAC) to systems and network storage, administer account lifecycle management.
• Plan, configure, and deploy Microsoft Windows Servers, Desktops, and Laptops, including installation, patch management, and baseline system configuration.
• Implement standard configuration baselines and security settings on all deployed systems in line with organizational policies.
• Implement and maintain system security baselines, including firewall settings, antivirus configurations, and user access controls aligned with organizational policies.
• Provide post-deployment support including troubleshooting hardware/software issues and validating adherence to baseline configurations.
• Install, configure, and maintain VMware ESXi hosts and vCenter Server to ensure a stable and scalable virtualization infrastructure.
• Monitor and manage virtual machines (VMs), including provisioning, cloning, migrating (vMotion), and resource allocation.
• Perform regular updates, patches, and upgrades of ESXi hosts and related VMware tools to maintain security and performance.
• Configure, deploy, and maintain Cisco switches, including Catalyst and Nexus series, to support enterprise network infrastructure.
• Manage switch stacking and link aggregation (EtherChannel) to enhance network bandwidth and resilience.
• Document network configurations, topology changes, and maintain accurate inventory of hardware and software versions.
• Manage and maintain NetApp storage arrays, including configuration, provisioning, and monitoring of storage volumes and aggregates.
• Configure and optimize storage protocols such as NFS, CIFS/SMB, iSCSI, and Fibre Channel for diverse client environments.
• Implement data protection strategies including snapshots, replication (SnapMirror), and backups to ensure data availability and disaster recovery.
• Monitor system health, capacity utilization, and performance metrics.
• Work independently and as a team member. Individual contributor that works under limited supervision. Determines approach to work, monitored / supervised based on key objective check-ins. Lead assignments for specific job function or projects. Lead entry level individual contributors to ensure the work completion as per set standards and procedures.

Qualifications

• Must have 2-6 years of relevant experience with Associate’s Degree in information technology, computer science. Equivalent work experience may be considered in lieu of a degree.
• Basic cybersecurity knowledge.
• Experience working independently on technical network activities in support of a client.
• Must have or be able to obtain a TS security clearance, be able to take/pass a polygraph, and be able to maintain both for the tenure of this position.
• Must have all required IT / Security certifications and maintain for the tenure of this position.
• Must be a U.S. Citizen.