Oracle Exadata Senior Administrator

About the Role

DXC Technology is seeking a Senior Oracle Exadata Administrator to manage on-premises Oracle Exadata platforms (X8M, X9M, and X10M) and Exadata Cloud Service (ExaCS/ExaCC) on Oracle Cloud Infrastructure (OCI). This full-time position is based in Riyadh, Saudi Arabia, and requires 7-8 years of relevant experience. The role focuses on ensuring Oracle database workloads are performant, secure, and resilient across their full lifecycle.

Key Responsibilities

• Deploy, configure, and manage Exadata Database Machine racks, including compute nodes, storage servers, InfiniBand/RoCE networking, and ILOM.
• Perform quarterly and ad hoc patching using dbaascli, exadcli, PatchMgr, and opatchauto across Grid Infrastructure, database homes, and storage cells.
• Manage Exadata storage, including cell disks, grid disks, flash cache, and persistent memory (PMEM), using CellCLI and ExaCLI.
• Configure and tune Smart Scan, Storage Indexes, Hybrid Columnar Compression (HCC), and Smart Flash Cache.
• Administer Exadata Cloud@Customer deployments, including infrastructure maintenance scheduling and VM cluster lifecycle activities.
• Provision and manage Exadata Cloud Infrastructure, VM clusters, and database homes using the OCI Console, CLI, Terraform, and REST APIs.
• Configure and manage Oracle RAC and RAC One Node across Exadata environments.
• Implement and maintain Oracle Data Guard and Active Data Guard across on-premises and cloud environments.
• Monitor and optimize Exadata performance using AWR, ASH, ADDM, cell metrics, and Exadata Storage Server utilities.
• Apply Exadata security hardening in line with Oracle Maximum Security Architecture guidelines.
• Develop and maintain runbooks, architecture documentation, and disaster recovery test plans.
• Participate in on-call support, incident management, root cause analysis, and problem management.

Exadata Cloud Service and Cloud@Customer Management

• Manage OCI IAM policies, compartments, and network configurations, including VCNs, subnets, and network security groups.
• Perform scaling operations for OCPUs, storage, and nodes, and manage elastic configurations.
• Automate provisioning and lifecycle operations using the Terraform OCI provider and OCI Resource Manager.

High Availability and Disaster Recovery

• Design and test switchover and failover procedures, including disaster recovery between on-premises Exadata and ExaCS.
• Manage RMAN backup strategies, including backups to OCI Object Storage, Zero Data Loss Recovery Appliance (ZDLRA), and local Fast Recovery Areas.
• Apply Oracle Maximum Availability Architecture (MAA) practices and monitor environment readiness.

Performance Engineering and Security

• Tune Smart Scan offload ratios, I/O Resource Management (IORM), and database resource plans.
• Analyze cell server statistics, flash cache hit rates, and Storage Index efficiency using ExaWatcher and OSWatcher.
• Conduct capacity planning and workload assessments to support scaling and consolidation decisions.
• Configure Transparent Data Encryption (TDE), Oracle Key Vault integration, and network encryption.
• Support Oracle Database Vault, Audit Vault, and Data Masking requirements.
• Apply security patches and relevant benchmarks in line with change management processes.

Candidate Profile

The ideal candidate is a hands-on Exadata specialist capable of taking ownership of complex environments, diagnosing performance and availability issues, and working across on-premises and OCI platforms. This role requires leading technical activities, documenting work, and collaborating with teams responsible for critical database services. Technical guidance and mentoring to junior administrators will also be part of the role.