NTT

3 months ago

Core DBA

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Last checked: 5 hours agoStatus: Live

Job Summary

Lead performance engineering for Oracle database environments, driving advanced tuning through AWR/ASH analysis, SQL tracing, execution plan deep dives, and wait-event methodologies. Diagnose and optimize OLTP-heavy core banking workloads while establishing performance baselines. Architect high availability and disaster recovery using Oracle RAC and Data Guard, designing backup/recovery frameworks and ensuring DR readiness through validation and audits. Manage security hardening and align with RBI/audit requirements.

Location: Bengaluru

Workplace: Onsite

Employment Type: Full time

Job Function: IT Operations (Systems/Network Admin)

Key Responsibilities

•Lead advanced performance tuning using AWR/ASH analysis, SQL tracing, execution plan deep analysis, wait-event methodology, and SQL Monitor/Real-Time ADDM.
•Diagnose systemic database issues (I/O bottlenecks, latch contention, memory pressure, CPU saturation) and improve performance.
•Optimize databases with indexing, partitioning, query rewrites, PL/SQL optimization, and connection pooling patterns for OLTP-heavy core banking workloads.
•Architect high availability and disaster recovery using Oracle RAC and Data Guard/Active Data Guard, including DR drills and failover simulations.
•Implement database hardening and security best practices such as role-based access control and privilege minimization, ensuring compliance with RBI/central bank guidelines and audit standards.

Key Requirements

•Lead advanced Oracle database performance tuning for OLTP-heavy core banking workloads using AWR/ASH, SQL tracing, and execution plan analysis.
•Diagnose systemic issues such as I/O bottlenecks, latch contention, memory pressure, and CPU saturation.
•Optimize databases using indexing strategies, partitioning strategies, query rewrites, PL/SQL optimization, and connection pooling patterns.
•Architect and manage high availability/disaster recovery with Oracle RAC, Data Guard/Active Data Guard, and DR failover simulations.
•Design backup and recovery frameworks (RMAN, incremental merge, backup validation) and ensure readiness with periodic validation and audit documentation.

Skills:Cross-functional leadershipExecutive communicationCrisis managementCommunicationRisk communication

Tech Stack:OracleAWRASHSQLSQL tracingExecution plansWait eventsSQL MonitorReal-Time ADDMIndexingPartitioningQuery rewritesPL/SQLConnection poolingOracle RACData GuardActive Data GuardDR drillsFailover simulationsRMAN

Company Brief

NTT

Dimension Data, operating under NTT Ltd, provides managed IT services, cloud and data center solutions, networking, cybersecurity, and digital transformation services to enterprise customers worldwide.

Industry: Professional Services

Company Size: Enterprise (1,001+ employees)

Revenue: USD 1B+

Growth: Established Company

Valuation: Public Company (Market Cap in USD)

Headquarters: London, United Kingdom

Founded: 1983

Website LinkedIn

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NTT