Senior Cloud Database Administrator at Tata Consultancy Services (TCS) (2022-08 – Present)
Client: Avis Budget Group
- Kept Oracle EBS R12.2.x and R12.1.3 Finance modules (GL, AP, AR) stable across their lifecycle by running ADOP online patching cycles, cloning, AutoConfig and multi-node configuration, and by resolving patch exceptions.
- Delivered 24x7 availability for OLTP and Data Warehouse workloads by administering Oracle 19c on OCI ExaCS, DBaaS and Autonomous Database.
- Secured the OCI environment by designing and managing VCN, DRG, NAT/Service Gateways and Load Balancers, and by setting up IAM policies, identity domains and Entra ID federation for SSO.
- Made environment builds repeatable and auditable by provisioning OCI infrastructure through Terraform (Resource Manager), OCI CLI and the Console.
- Enabled proactive incident detection by configuring OCI Monitoring alarms, notifications, metrics and logging, and by using OEM 13c, Performance Hub, AWR/ADDM and SQL Tuning Advisor for root-cause analysis.
- Protected recoverability by running the RMAN backup strategy (full, incremental, archive log) with OCI Object Storage integration, and by testing and documenting restore procedures.
- Assured DR readiness by maintaining Data Guard Physical Standby, including switchover/failover testing, lag monitoring and gap resolution.
- Supported EBS integration workflows by administering WebLogic, SOA Suite, OIC and MFT; mentored junior DBAs on OCI, patching and RMAN practices.
Senior Azure Database Consultant at Persistent Systems (2020-06 – 2022-07)
Sub-contractor to Microsoft. End Client: AT&T
- Modernized 50+ Oracle, SQL Server, PostgreSQL, MySQL and NoSQL workloads by leading on-premises-to-cloud migrations. Used GoldenGate MCS and Azure DMS for zero-downtime cutovers.
- Guided cloud architecture decisions for 50+ workloads by producing IaaS vs PaaS cost analyses and Detailed Design Documents with capacity planning.
- Enabled repeatable provisioning of POC, NPRD and PROD environments by building database infrastructure as code with Terraform and ADO Pipelines.
- Met AT&T enterprise security standards by implementing TDE for data at rest and certificates for data in transit; configured RMAN and OEM 13c monitoring.
Senior Oracle / Apps DBA Consultant at Birlasoft Limited (2010-10 – 2020-05)
9+ years continuous employment with 4 client engagements
Senior Oracle / Apps DBA Consultant at National Oilwell Varco (NOV) (2019-06 – 2020-05)
Client engagement during Birlasoft employment
- Sustained 24x7 production for EBS R12.2.5/R12.1.3 multi-node environments with DMZ and the external iSupplier portal by running ADOP patching, cloning and refreshes.
- Secured EBS access by implementing SSO with OAM/OUD; managed WebLogic, SOA and WebCenter domains, Node Manager and clustered managed servers.
Senior Oracle / Apps DBA Consultant at Synchrony Financial (2016-04 – 2019-05)
Client engagement during Birlasoft employment
- Led the end-to-end EBS upgrade from 11.5.10.2 to R12.2.3, with a concurrent database upgrade from 10.2.0.5 to 11.2.0.4, including the OFA-to-OATM tablespace conversion for R12.2 readiness.
- Maintained the zero-downtime patching SLA by owning the full ADOP cycle (prepare, apply, finalize, cutover, cleanup) and resolving patching exceptions.
- Strengthened resilience by designing the RMAN backup strategy and Physical Standby DR with tested runbooks; built OEM 12c monitoring across the DB, middleware and EBS tiers; supported Workflow Mailer and Concurrent Manager.
Senior Oracle / Apps DBA Consultant at Synchrony Financial (2014-06 – 2016-03)
India Operations - Client engagement during Birlasoft employment
- Performed AWS cloud migration activities and TDE encryption with key vaulting; led Solaris-to-Linux migrations and Oracle 11.2 to 12.1 upgrades.
Senior Oracle / Apps DBA Consultant at GE Corporate / GE Energy (2010-10 – 2014-05)
Client engagement during Birlasoft employment
- Implemented Oracle RAC 11gR2 clusters and Physical Standby DR; managed RMAN, cloning, opatch/adpatch patching and SQL tuning.
Oracle Apps DBA at 4CS (2008-09 – 2010-09)
Client: Mahindra USA
- Delivered the EBS 11.5.9 to 11.5.10.2 upgrade and an R12 multi-node implementation; handled adpatch/opatch patching, SSO integration and 24x7 support.
