Oracle E-Business Database Administrator Consultant

Position overview / Statement of Work
The Office of Innovation and Technology and Department of Revenue IT unit are seeking an experienced
Oracle E-Business Suite (EBS) DBA to lead the planning of an upgrade from Oracle EBS 12.1 to 12.2. The
ideal candidate will have deep expertise in Oracle Database Administration, EBS architecture, and upgrade
methodologies. This role involves analyzing the existing environment, the ability to clone the system with
standard EBS tool and designing an upgrade strategy that will ensure post-upgrade stability and
performance optimization.
Key Responsibilities:
• Develop a comprehensive upgrade plan for Oracle EBS from 12.1 to the latest subversion of 12.2,
including risk assessment and rollback strategies.
• Perform technical analysis, impact assessment, and design pre-upgrade validation to ensure a
smooth transition.
• Determine impact to basis2 customer information/water billing system and factor into upgrade plan.
• Plan installation and configuration of Oracle EBS 12.2, including WebLogic, Fusion Middleware, and
Online Patching (ADOP).
• Define optimization of the Oracle Database (if required) in alignment with EBS 12.2 compatibility.
• In collaboration with the Basis2 custom module's vendor, define code customizations and retrofitting
as needed to ensure compatibility with 12.2.
• Design cloning, backup, and recovery processes to safeguard data during the upgrade.
• Create plan for troubleshooting and resolving performance, patching, and configuration issues postupgrade.
• Work closely with functional consultants, developers, and business users to develop a
comprehensive plan that ensures minimal disruption to business operations. The plan to include
detailed technical choices (source constraints, target Database, target Operating System) and a
feasibility assessment thereof.
• Conduct training and documentation for internal teams on new features and best practices.
Work activities and Essential Functions:
1. Pre-Upgrade Planning & Assessment
a. Conduct a system assessment to analyze the existing EBS 12.1 architecture, including database,
application tier, and customizations.
b. Evaluate system compatibility with EBS 12.2, including database versions, third-party software
(including basis2 water billing system), and hardware.
c. Perform a custom code impact analysis of basis2.
d. Identify deprecated features, unsupported objects, and necessary modifications.
e. Develop an upgrade strategy, including timelines, rollback plans, and resource requirements.
2. Environment Preparation & Cloning
a. Define test environments (development, test, and UAT) required for the upgrade process.
b. Create plan for cloning of the production EBS 12.1 environment to create a sandbox for dry runs.
c. Create plan for upgrading the database to a certified version (e.g., Oracle Database 19c) as per EBS
12.2 requirements.
d. Define required patches to prepare for the upgrade.
e. Define a test plan to prepare for the upgrade.
3. Plan the components of executing the Upgrade Process
a. Follow Oracle's 12.2 upgrade roadmap, including:
b. Running Rapid Install for 12.2
c. Applying Release Update Pack (RUP) patches
d. Enabling Online Patching (ADOP framework)
e. Execute data migration scripts and update metadata as required.
f. Verify integrity of concurrent manager processes, workflow mailers, and business-critical
integrations.
g. Work with developers to define how to retrofit and remediate customizations impacted by the new
architecture.
4. Plan Post-Upgrade Validation & Optimization to include but not limited to:
a. Conduct thorough functional and performance testing to ensure system stability.
b. Optimize database and application performance, including SQL tuning, indexing, and JVM tuning.
c. Validate patching functionality using Oracle's AD Online Patching (ADOP) feature.
d. Perform cutover planning and execution for the final upgrade to production.
e. Provide end-user support, documentation, and knowledge transfer to stakeholders.