Oracle Database Administrator

Job description

**Req ID:** 376971 NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now. We are currently seeking a Oracle Database Administrator to join our team in Chennai, Tamil Nādu (IN-TN), India (IN). Sr Oracle Database Administration Position Summary NTT DATA is seeking a highly skilled Oracle Database Administrator to support enterprise database environments across on-premises and cloud platforms. Acts as a key resource responsible for administration, maintenance, and optimization of Oracle database environments supporting enterprise applications. Ensures high availability, performance, and security while delivering services aligned to ITIL processes, SLAs, and operational standards. This role ensures high availability, performance, security, and compliance of database systems across on-premises and cloud platforms. The position supports mission-critical environments support both on-premises and Oracle Cloud Infrastructure (OCI) environments, including RAC, Data Guard, ASM, Exadata and modernization initiatives. This role contributes to proactive monitoring, incident resolution, and continuous improvement in database services. Primary Responsibilities A. Database Administration Lifecycle Management - Manage full database lifecycle including installation, configuration, upgrades, patching, and decommissioning - Perform database provisioning, schema management, and storage optimization - Execute database migrations, upgrades, and platform modernization initiatives B. High Availability Disaster Recovery - Implement and manage Oracle RAC, Data Guard, and ASM environments - Design and support disaster recovery strategies and failover mechanisms - Ensure business continuity through resilient architecture and validation testing C. Performance Tuning Optimization - Monitor database performance and conduct query optimization, indexing, and partitioning strategies - Perform capacity planning and performance trend analysis - Leverage OEM and OCI observability tools for proactive monitoring D. Backup, Recovery Data Protection - Define and execute backup strategies using RMAN and enterprise tools - Perform database recovery, restore, and disaster recovery drills - Ensure data integrity and compliance with recovery SLAs E. Security Compliance - Implement database security controls including encryption, access control, and auditing - Manage Oracle Security, Oracle Key Vault (OKV), and compliance requirements (SOX, HIPAA, etc.) - Apply patches and security hardening practices aligned with policies F. Cloud Platform Modernization - Administer Oracle Cloud Infrastructure (OCI) environments - Support cloud migration, hybrid architecture, and database transformation initiatives - Implement OCI services including monitoring, logging, and automation frameworks G. Incident, Problem Change Management - Troubleshoot and resolve database incidents and performance issues - Conduct root cause analysis and implement preventive measures - Participate in CAB processes and change management workflows H. Stakeholder Project Management - Collaborate with application teams, infrastructure teams, and business stakeholders - Lead or support database-related projects and initiatives - Provide status reporting, documentation, and knowledge transfer - Oracle Database Administration (Core DBA) - Oracle Exadata Administration - Oracle RAC, ASM, Data Guard - Oracle Key Vault (OKV) Security Administration - PL/SQL, SQL tuning performance optimization - Backup Recovery (RMAN) - Oracle Enterprise Manager (OEM) - Oracle APEX Development Secondary / Preferred Skills - Oracle Cloud Infrastructure (OCI) - Automation tools knowledge (Ansible, AWX) would be plus - Replication tools (GoldenGate) Experience Requirements - Years of Experience: 12+ years - Experience supporting enterprise, high-availability database environments - Experience with cloud migrations and modernization initiatives preferred Education Certifications - Bachelor’s degree in Computer Science / IT or equivalent experience - Oracle certifications (DBA / OCI / Security) – Preferred Soft Skills Competencies - Strong troubleshooting and analytical skills - Ability to manage critical production environments - Effective communication and stakeholder management - Ability to work in fast-paced, SLA-driven environments - Team collaboration and mentoring capabilities About NTT DATA NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in RD. Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT