Rakesh Jena

Rakesh Jena is a highly experienced Multi-Cloud DBA, Oracle Applications DBA, and Database Security Engineer with over 15 years of consulting and support expertise in Oracle applications, core database administration, and cloud technologies such as AWS and OCI. He is currently working at Oracle America as a Database Security Engineer, where he specializes in advanced security implementations, authentication mechanisms like Kerberos, Centrally Managed Users (CMU), Enterprise User Security (EUS), SSL, Audit Vault & Database Firewall (AVDF), Transparent Data Encryption (TDE), and security vulnerability management. His role involves supporting top-tier Oracle clients, handling critical P1 and P2 issues, researching security vulnerabilities, and filing product improvement bugs while creating knowledge documents for both internal and external Oracle users. Prior to his current role, he worked as a Cloud DBA and Oracle Apps DBA at Cognizant Technology Solutions, where he played a key role in upgrading Oracle EBS applications from version 12.1.3 to 12.2.4 and database upgrades to Oracle 19c in a multitenant architecture. His experience includes maintaining Oracle ERP Applications in multimode environments, installing and upgrading various enterprise applications such as WebLogic, Apex, GRC, and Vertex, as well as managing Exadata refreshes and Zero Data Loss Recovery Appliance (ZDLRA) backups. He has also worked extensively on security patching, database cloning, and disaster recovery drills. Rakesh has held significant roles in major organizations such as Tata Consultancy Services, where he managed Oracle Applications instances, performed cloning and database refreshes, applied security patches, upgraded JDK versions, implemented SSL, and provided 24x7 on-call production support. His expertise spans Oracle EBS administration, database performance tuning, system migrations, patching, and automation using Unix shell scripting. He holds numerous Oracle and AWS certifications, including Oracle Database Security Expert (1Z0-116), Oracle Cloud Infrastructure Foundations, and AWS Certified Cloud Practitioner. His technical skill set covers database encryption, backup and recovery strategies using RMAN, RAC and Data Guard implementation, and configuring high-availability options such as Standby Databases. His ability to collaborate with cross-functional teams, troubleshoot complex database issues, optimize performance, and implement security best practices has made him a valuable asset in his field. Throughout his career, he has demonstrated strong leadership, problem-solving abilities, and a deep understanding of both on-premise and cloud-based database solutions. With hands-on experience in configuring Virtual Private Cloud (VPC), EC2, S3, EFS, EBS, Auto Scaling Groups, and network security in cloud environments, Rakesh is well-versed in hybrid cloud deployments and security architectures. His strong knowledge of Oracle Advanced Security features, enterprise-scale applications, and commitment to staying updated with the latest technologies have contributed to his success in designing and managing secure, high-performance database solutions for large enterprises. His extensive industry knowledge and certifications, combined with a track record of delivering robust database security and cloud-based solutions, establish him as a distinguished expert in Oracle database administration and security engineering.