Core DBA

Job description

Performance Engineering & Optimization (Core Focus) Lead advanced performance tuning using: AWR/ASH analysis SQL tracing Execution plan deep analysis Wait-event methodology SQL Monitor & Real-Time ADDM Diagnose systemic issues (I/O bottlenecks, latch contention, memory pressure, CPU saturation). Optimize: Indexing strategies Partitioning strategies Query rewrites PL/SQL optimization Connection pooling patterns Establish performance baselines for OLTP-heavy core banking workloads. 2. High Availability & Disaster Recovery Architect and manage: Oracle RAC (multi-node clustering) Data Guard / Active Data Guard DR drills & failover simulations Own RPO/RTO alignment with banking regulatory requirements. Design backup & recovery frameworks (RMAN, incremental merge, backup validation). Ensure DR readiness with periodic validation and audit documentation. 3. Banking Domain Alignment Leads client situations in crisis management, good executive communication and cross-functional leadership to Leadership Competencies, e.g. Lead crisis resolution for Sev1/Sev2 database incidents and delivers executive-ready RCA reports. Aligns with cross-functional stakeholders (IT, business, audit) in large banking teams Communicate complex database risk and strategy to C-suite executives and regulatory auditors. Support mission-critical systems such as: Core Banking (CBS) UPI / Payments / Switch systems Treasury systems Risk & Compliance platforms Data Warehouse & Regulatory reporting Ensure compliance with RBI/central bank guidelines and audit standards. Support high transaction throughput environments (large OLTP systems). 4. Security & Compliance Implement database hardening and security best practices: Role-based access control Privilege minimization Database Vault (if applicable) Transparent Data Encryption (TDE) Data masking for non-prod environments Support audit requirements and regulatory inspections. Ensure encryption at rest and in transit (SSL/TLS, wallet management). 5. Automation & Operational Excellence Develop automation using: Shell / Python Ansible Infrastructure-as-Code principles Standardize patching, upgrade, and rollback frameworks. Enhance observability via OEM / custom monitoring. Improve MTTD/MTTR via structured incident response and RCA processes. Required Experience 10+ years of enterprise Oracle database experience with 3+ years of preferred hands-on banking/financial services . Expert-level experience in: Oracle RAC Data Guard / Active Data Guard RMAN AWR/ASH performance diagnostics Partitioning & Advanced Compression OEM Strong experience in large OLTP workloads (high TPS environments). Experience handling multi-terabyte databases. Strong scripting/automation experience (Shell, Python, Ansible). Experience in Pre-Sales for Oracle, MS-SQL, Open source Database Hands-on experience with multicloud - OCI, Azure, AWS, GCP Ability to execute DBA tasks such as Upgrade, migration. Experience with Golden Gate replications Experience with SQL Server AG Experience with Weblogic upgrade Technical Skills (Expanded) Oracle 12c/19c/21c /26Ai architecture ASM & storage management Exadata (Smart Scan, Storage Indexes, HCC) GoldenGate (replication & migration scenarios) Database upgrades & migration strategies Edition-Based Redefinition (EBR) SQL Plan Management (SPM) Real Application Testing (RAT) Resource Manager Connection pooling (WebLogic, application integration) Linux performance diagnostics (vmstat, iostat, top, sar) Network latency analysis Cloud exposure (OCI preferred) Preferred Qualifications Oracle OCP / OCM certification. Experience with Exadata or engineered systems. Exposure to cloud-native database architectures. Experience in regulatory audits within banking sector.