Johnson Service Group (JSG) is currently looking for a Senior Oracle Database Administrator (DBA) with experience in Oracle Exadata Cloud@Customer (ExaCC), Oracle Database administration, RAC, ASM, Data Guard, GoldenGate, OCI, database migrations, and high availability/disaster recovery. This is a contract opportunity with an electric utility client in Calgary, Alberta.

Job Description

JSG’s client is seeking a highly skilled and experienced Oracle Exadata Cloud@Customer (ExaCC) Database Administrator (DBA) consultant to support a multi-year initiative to implement and operationalize ExaCC as an enterprise database platform for multiple applications and business services. The successful candidate will be a hands‑on technical implementer with deep Oracle database engineering expertise and demonstrated experience delivering ExaCC environments from implementation through database migration and onboarding, stabilization, and transition to production operations.

Required Qualifications And Experience

- Bachelor’s degree in Computer Science, Engineering, Information Technology, or a related field, or an equivalent combination of education and relevant professional experience.
- 7+ years of hands‑on Oracle Database administration experience, including advanced administration and troubleshooting of Oracle RAC, ASM, backup/recovery, and Data Guard.
- Demonstrated hands‑on experience implementing and operating Oracle Exadata Cloud@Customer; experience with Oracle Exadata engineered systems is essential.
- Robust practical experience implementing, configuring, and troubleshooting Oracle GoldenGate replication. Candidates should be able to explain and demonstrate implementation choices, monitoring, recovery,



and problem resolution—not only routine monitoring.
- Hands‑on experience planning and executing Oracle database migrations and onboarding, including assessment, rehearsal, validation, cutover, rollback planning, and post‑migration stabilization.
- Experience implementing and testing Oracle Data Guard high‑availability and disaster‑recovery configurations, including switchover/failover procedures as applicable.
- Practical experience with Oracle RAC and ASM administration, performance tuning, database troubleshooting, patching, and production support.
- Experience administering relevant OCI tenancy services, including IAM, compartments, networking, monitoring, and other OCI services used by the ExaCC solution.
- Experience with Oracle Enterprise Manager (OEM) or equivalent tooling for database monitoring, alerting, diagnostics, and operational visibility.
- Experience with scripting and automation to make implementation and operational processes repeatable and supportable.
- Strong understanding of change management, incident/problem management, technical documentation, operational readiness, and production service transition.

Key Responsibilities

ExaCC Implementation and Technical Delivery

- Participate in technical planning and implement ExaCC database environments in accordance with approved strategy and architecture,



security standards, prerequisites, and delivery plans.
- Coordinate with platform/infrastructure teams and Oracle support on ExaCC provisioning, connectivity, lifecycle activities, configuration, and technical issue resolution.
- Validate environment readiness, database prerequisites, network connectivity, access, monitoring, backup/recovery, and operational dependencies before onboarding workloads.
- Develop implementation plans, runbooks, test plans, rollback procedures, cutover plans, and technical documentation.
- Troubleshoot implementation issues across the database, RAC, ASM, Exadata, OCI connectivity, and related service components.

Database Migration, Onboarding and Cutover

- Assess source databases and application dependencies for migration to ExaCC, including versions, configurations, database size, growth, workload characteristics, availability requirements, and compatibility considerations.
- Develop and execute database migration and onboarding plans, including migration method selection, prerequisites, rehearsal, validation, cutover, rollback, and post‑migration verification.
- Coordinate with application owners and technical teams to schedule migrations, manage dependencies, minimize business disruption, and confirm application connectivity and functionality after cutover.
- Validate database objects, data consistency, performance, security, jobs, interfaces, and operational monitoring following migration.
- Maintain migration records, issue logs, acceptance evidence, and lessons learned; support remediation of migration‑related defects.

Oracle GoldenGate Implementation and Replication

- Design, co

📌 Senior Oracle Database Administrator (Calgary)
🏢 JSG (Johnson Service Group
📍 Calgary