Job Title: Oracle DBA
Location: Gdansk, Poland (Hybrid 3 days onsite per week required)
Duration: 6-12months
***Please apply only if you are legally authorized to work in the Poland.*
Requirements
- Certification – Oracle 11g/12c certified.
- Exadata, ExaCC, CDB/PDB , Troubleshooting Exp.
- Strong database administration and troubleshooting skills.
- Hands-on experience working in Global Customer environment.
- Database Upgrades & Migrations (On-Prem → Exadata → ExaCC ·
- High availability (RAC) setup and administration.
- Real time experience in handling Disaster recovery design, planning, setup and administration
- Expert in Provisioning and decommissioning of Database including Instance/ASM/RAC/Grid Control/DataGuard/GoldenGate administration and monitoring tools.
- OEM/OMS administration and Monitoring tools Configuration and management.
- Experience on OS, Storage, Network and Virtualization activities related to Database.
- Exadata & ExaCC Performance Optimization
Responsibilities:
Managing large-scale Oracle database estates including TB-scale Exadata and Exadata Cloud@Customer (ExaCC) environments.
- Hands-on administration of Oracle Exadata (On-Prem) and ExaCC, including: Infrastructure and VM Cluster awareness, Database lifecycle operations on ExaCC, Coordination with OCI & Oracle Support for ExaCC incidents.
- Installation, administration, patching, migration and upgrade of Oracle databases across Unix and Windows platforms.
- Designing and implementing High Availability and DR solutions using RAC, Data Guard and GoldenGate on both Exadata and ExaCC platforms.
- Hands-on experience with ASM/ACFS disk group management across Bare Metal, VM-based, Exadata and ExaCC deployments.
- RMAN operations including backup, restore, refresh, clone, migration and upgrade (host-to-host, host-to-VM, Exadata to ExaCC).
- Patch management and lifecycle planning for Oracle databases, Grid Infrastructure and Exadata/ExaCC platforms.
- Expert knowledge of OEM monitoring for Exadata and ExaCC targets, including alerting, performance metrics and capacity tracking.
- Performance tuning using AWR, ADDM, ASH, SQL Baselines, SQL Profiles, ExaCheck and advisory views, including Exadata-specific optimizations.
- Implementing and periodically reviewing security, compliance and VAPT controls for databases hosted on Exadata and ExaCC.
- Coordinating with Oracle Support and OCI teams for Sev-1 / Major Incidents on Exadata & ExaCC.
- Proactive performance analysis and recommendations to application and business teams.
- Understanding of upstream/downstream systems – server, storage, network and virtualization layers.
- Automation using shell and PL/SQL scripts; periodic validation of automation effectiveness.
- SLA tracking, reporting and capacity planning for Exadata/ExaCC platforms.
- Preparing and maintaining audit-ready SOPs for Oracle, Exadata and ExaCC operations.
- Identifying, documenting and mitigating technology risks including ExaCC platform dependencies.
- Mentoring L1/L2 DBAs on Oracle, Exadata and ExaCC operational best practices.
- Providing on-call support for mission-critical databases