Senior Oracle Database Administrator Resume
Sanfrancisco, CA
SUMMARY
- 12+ years of experience as an Oracle Database Administrator having hands on experience in Production Support, Installation, Configuration, Upgrades, Patching, Performance Tuning, RMAN Backup and Recovery, ASM/RAC Administration, Golden Gate Replication,Cloning, Space management, Database Security, Auditing, Shareplex Replication, BCV Splits (EMC Snapshots, Backups & Recovery).
- Progressive experience in Oracle database Design and Architect.
- Proven track record of providing strategic direction while deploying tactical technical solutions.
- Exceptional analytical and problem solving skills.
- Excellent ability to look at problems from a macro level and a detailed level; always keeping the appropriate business prospective.
- Excellent experience in Installation, configuration and cloning of Oracle 8i, 9i, 10g, 11g, 12c and 11g RAC and standalone in UNIX/LINUX and Windows 2008/2012 R2 environment.
- Duties included Installation, Patching, Upgrading, Performance Tuning, Space allocation and MaintainingOracle Server according to Oracle OFA Standards.
- Work with application teams closely to implement the standard and best practices for Netezza database.
- Hands on experience in Node Addition and Deletion on RAC databases
- Experience in implementing Bi - directional data replication configuration usingOracle Golden Gate.
- Expert with Data Guard, creation of Physical standby and resolving the gaps between primary and physical standby databases.
- Good experience in working with Data Replication tools Oracle Streams, Materialized Views, Data Guard, Golden Gate & Shareplex.
- ConfiguredZero-Downtime Migration Replication using Oracle GoldenGate.
- Excellentexperience in executing ETL scripts that populate FACTS databases from external sources.
- Good hands on experience and working on oracle 10g/11g/12c RAC, ASM, Data Guard and Oracle 12c OEM, Oracle 12c Transparent Data Encryption.
- Worked on Data Mapping, Data Selection/Filtering and Data Transformation using Oracle Golden Gate.
- Implemented Advanced Data Conflict Resolution methods using Oracle Golden Gate.
- Worked (VLDB) Very Large Databases such as multi-terabyte Databases.
- Good hands on experience in working onFlashback&Database Optimization techniques.
- Active participation in Data Centre Migration.
- Hands-on experience in Planning & Designing Oracle Backups and Recovery strategies like RMAN, export/import, Data pump, Hot/Cold Backup &Logical &Physical Backup.
- Proficient in Oracle High Availability features like RAC, DATA GUARD, GRID CONTROL and Oracle Performance Tuning Utilities like ADDM, AWR, ASH, SQL-Tuning Advisor, EXPLAIN PLAN, TK PROF, DBV.
- Experience on Netezza Mako appliances, Hands-on with Netezza replication 1.6 or later.
- Regularly attendingproject meetings and provide management with statuses and updates on projects and assignments.
- Performed Data file recovery from logical and physical block corruptions
- Good understanding and Implementation expertise in RAC, ASM, Data Guard,Oracle DB security & Data masking like remedy change and user tickets, frequently communicate effectively with technical and non-technical customers.
- Exp on Cluster management, event management, application management, connection management, storage management, load balancing and availability.
- Good Experience in Monitoring the databases to ensure maximum database availability
- Installing, Configuring, Administering, Cloning, Patching, Upgrading and Migrating the Oracle Technologies Database Products on Unix, AIX, Sun Solaris SPARC, Linux, Cent OS and Windows server family.
- Work with Architect and planning teams to identify right technology investments and technical Architectural upgrades
- Hands on experience with Switchover/Failover activities.
- Expert in Support and Maintenance, Shell scripting, database upgrades and enhancements.
- Hands on experience in migration of databases using Transportable Tablespaces .
- Conducting Knowledge Sharing and Training sessions to Train staff to perform all aspects of on-going support of the databases.
- Proficiency in Analytical, Presentation, written and oral Communication and Interpersonal skills.
TECHNICAL SKILLS
Database Admin: ORACLE 12c,11g,10g/9i
RDBMS: Oracle, Microsoft SQL Server& DB2
High Availability: 10G,11G, RAC, Data Guard, ASM& Oracle Golden Gate
Languages: SQL, PL/SQL, Shell Script, C
Operating System: LINUX (4.x, 5.x, 6.x), Sun Solaris 8/9/10, SuSE Linux Advanced Server, and HP-UX 10/11.x, IBM AIX 5.1, 5.2,5.3 & Windows Server 2003/2008/2012 R2
Development Tools: SQL Developer, Toad, SQL*plus, SQL* Loader, JIRA
Database Tools: SQL*PLUS, TOAD, Putty, OEM (11g& 10g), RMAN, EBU, SQL* LOADER, Export/Import& Data pump (expdp and impdp).
Web Technologies: Html
Ticketing Tools: Remedy, Impact
Tuning Tools: TKPROF,EXPLAINPLAN,STATSPACK,AWR,ADDM, ASH
PROFESSIONAL EXPERIENCE
Confidential - SanFrancisco, CA
Senior Oracle Database Administrator
Responsibilities:
- Working on Pre migration activities for OPS(Online Payment Services) and PYD(Payee Directory) databases migration to Exadata
- Support Online Payment Services for various releases.
- Supporting Various Failover Test plans on newly created 12c RAC Exadata environment.
- Working on creating AQ/MQ's for Transfer Scheduling services.
- Working on replacing the existing CDC streams replication mechanism with Triggers, as it was not supported in Oracle 12c Exadata environment.
- Working on Alternative solution for AQ/MQ's gateway mechanism.
- Providing support for SQL Query Tuning and Database Performance issues.
- Participated in Bill Pay Batch Volume Testing procedures for Batch Services.
- Working on Planning and Prerequisites for Volume Testing.
- Monitor and analyse database activity to proactively identify and prevent Potential Performance problems.
- Monitoring Table space size, resizing Table space, relocating data files for better disk I/O.
- Creating Privileges, Roles and user Profiles. Granting resources to users.
- Maintaining 100% SLA compliance with JIRA tickets.
- Good experience in with the 11g/12c Oracle Enterprise Manager(OEM)
- Taking AWR reports and analysing them periodically for better performance.
- Monitoring the Performance of the system and resolving any issues to ensure stable performance.
- Extensively worked on SQL tuning.
- Good knowledge in working SQL & PL/SQL procedures, functions and triggers.
- Extensively worked on database tuning and strong knowledge on using 11g and 12C Optimizers.
- Implemented custom PL/SQL packages for DBA related jobs such as purging custom tables, loading data into custom tables etc.
- CapturingPerformance Metrics during Volume test process.
- Configuring TNSNAMES.ORA and LISTENER.ORA for SQL*NET connectivity.
- Baseline and new code run-times in the Batch and Database logs
- Server-level statistics on both Batch and Database servers (using iostat, vmstat, etc)
- Process-level statistics on both Batch and Database servers using the ps unix command
- Database-level statistics by enabling a logon trace trigger, which generates the raw database trace files. We use Tkprof to massage the raw db trace files and generate a report that includes Logical I/O's, Comparison of the number of parses to number of executions,SQL statements that do not use bind variables (:variable) & Statements that perform full table scans, multiple disk reads, and exhibit high CPU consumption.
- Monitoring the critical System parameters and analysing and resolving any issues found during the monitoring.
- Working on implementing the OPS Volume Testing framework.
- Monitor the log files on the batch server and the db log table to make sure the jobs within the box progress without any issues
Environment: Oracle 11g&12c, Exadata, Sun OS 5.10, Linux (RHEL 4.x, 5.x 6.x),Toad 10.6,Visio & Shell Scripting.
Confidential - Richardson, TX
Senior Oracle Consultant
Responsibilities:
- 24X7 production support and on call rotation as per the support roster.
- Applying regular quarterly CPU/PSU patches and keeping the databases up to date with the Oracle Security updates.
- Involved in database migrations, cloning production system, for testing and development.
- Developing, Testing and Implementing RMAN Backup and Recovery Strategy on various non prod and prod for newly created 11g/10g databases
- Active participation on Node Addition and Deletion on RAC databases
- Created replication environments as physical standby for the prod databases using High availability feature Data Guard in Maximum performance mode.
- Performed Databases Refresh and Schema level refresh as per the User request from Production to UAT and DEV Environments for testing Purpose’s
- Working on Oracle 12c Installation, configuration and maintaining the databases
- Involved in Implementing Oracle Golden Gate between Production databases Active - Active configuration with CDR implementation.
- Work with application teams closely to implement the standard and best practices for Netezza database.
- Worked on generating the reports using various Reporting tools.
- Worked on Hadoop with Cloudera Manager to add services and nodes to the Hadoop cluster.
- Manually starts and stops the Services in cluster when need.
- Deploy parcels and packages to the Hadoop cluster using Cloudera Manager.
- Took responsible for writing Shell scripts, SQL scripts and implementing auto manageable scripts.
- Working on Space management, User management for smooth running of the databases.
- Creating users, allocation to appropriate table space quotas with necessary Privileges and Roles for all databases.
- Having good experience in Hadoop HDFS, HBASE.
- Restarting and Refreshing the Hadoop cluster using Cloudera Manager.
- Exploring rich, interactive visuals using Data Visualization on Integrated Cloud Applications.
- Performed Switchover/Failover activities.
- Creating the new jobs for report generation, Database monitoring and Alert management.
- Managing archive logs, DB-links, partitions.
- As part of daily activity, moving the TB's of data from production to backup system using Transportable Tablespaces.
- Monitoring Table space size, resizing Table space, relocating data files for better disk I/O.
- Creating Privileges,Roles and user Profiles. Granting resources to users.
- Working on installing Oracle Enterprise Manager (OEM) and maintenance of the entire ORACLE 12c environment
- Extensively worked on RMAN Backup & Recovery scenarios.
- Designed Backup Strategies and Disaster recovery plans depending upon the criticality of the Databases.
- Conducting Knowledge sharing sessions to Team members
- Regular Team meetings with all the teams to track the progress of the work and issues.
- Track testing and development progress and document the same. This is to ensure highest quality of solution is delivered using Integrated Test Client
- Discussing with business entities and other stakeholders to resolve any issues related to the Project.
- Monitoring the critical System parameters and analysing and resolving any issues found during the monitoring
- Monitoring the Performance of the system and resolving any issues to ensure stable performance.
- Good experience in implementing hot, cold and RMAN scheduled backups and Performance Tuning of SQL statements.
Environment: Oracle 11g&12c, Netezza database, Linux (RHEL 4.x, 5.x 6.x),Hadoop,Sun OS 5.8/5.9/5.10, Toad,Cloudera Manager Shell Scripting.
Confidential, Redwood City, CA
Principle Database Administrator
Responsibilities:
- Involved in 24*7 production support for multiple (1000+) customers Oracle databases.
- Responsible for Installation, Up-gradation, Migration, Applying Patches, Cloning.
- Created new Cluster environments, ASM and databases as per the requirements.
- Developing, Testing and Implementing RMAN Backup and Recovery Strategy on various non prod and prod for newly created 10g/11gand 12C databases
- Involved in Implementing Oracle Golden gate between Production databases Active - Active configuration.
- Configured and deployed the High Availability, disaster recovery solution Data guard Physical Standby database in max-performance mode.
- Creating Support pages using Oracle Application Express (APEX)
- Performed Databases Refresh and Schema level refresh as per the User request from Production to UAT and DEV Environments for testing Purpose’s
- Responsible for managing production, development & test databases and applications.
- Extensively worked with export/import and Data Pump utilizes to migrate data from Sun Solaris to AIX
- Working on designing complex spreadsheets in Excel, and experience in Visual Basic for Applications (VBA)
- Plan and acquire the new technologies for and implementation, suitable for the applications in regard to the specific future requirements of the company's business projections and growth
- Extensively worked with indexes and table partitioning.
- Experience in Writing shell scripts, SQL scripts and implementing auto manageable scripts.
- Planning for storage spaces requirements and placing them for optimum I/O performance.
- Tuning the databases for optimal performance.
- Partitioning tables by determining the suitable methodology to improve performance and manageability.
- Implemented custom PL/SQL packages for DBA related jobs such as purging custom tables, loading data into custom tables etc.
- Provided application support to users and created a log of all the problems with solutions for future reference.
- Experience in implementing hot, cold and RMAN scheduled backups and Performance tuning of SQL statements.
Environment: Oracle 10g, 11g, 12C, RAC, ASM, Data Guard, Oracle Enterprise Manager (OEM), OEM 10g/11g Grid Control, RMAN, Linux( RHEL 5.x 6.x), Sun OS 5.8/5.9/5.10, Windows 2012 Toad, Shell Scripting, PL/SQL, SQL*Plus.
Confidential, Webster, NY
Senior Oracle Database Administrator
Responsibilities:
- Handling high availability (24/7) database in onshore-offsite model.
- Applying regular quarterly CPU/PSU patches and keeping the databases up to date with the Oracle security updates.
- Developing, Testing and Implementing RMAN Backup and Recovery Strategy on various non prod and prod for newly created 11g/10g databases
- Involved in Implementing Oracle Golden gate between Production databases Active - Active configuration with CDR implementation.
- Migration of around 2000 Schemas across 65 prod databases to New 5 Node PROD RAC database
- Working on Database Optimization techiniques.
- Setup the Data Replication configuration using Shareplex tool.
- Good hands on experience in working with Unified Modelling Language (UML) and Use Cases.
- Preparing the deployment plans with pre and post installation steps
- Created replication environments as physical standby for the prod databases using High availability feature Data Guard in Max performance mode.
- Configured Data Guard to ensure high availability, data protection and disaster recovery for enterprise data.
- Working on Application Lifecycle Management with Visual Studio Team Foundation Server (TFS)
- Performed Databases Refresh and Schema level refresh as per the User request from Production to UAT and DEV Environments for testing Purpose’s
- Working on executing ETL scripts that populate FACTS databases from external sources.
- Extensively worked with export/import and data pump utilizes to migrate data from Sun Solaris to AIX
- Working with Data ETL (Extraction, Transformation and Loading) using SSIS (SQL Server Integration Services) in SQL Server 2008 with Import/Export Data, Bulk Insert.
- 24X7 production support and on call rotation
- Installing, Configuring, Managing, Monitoring and Troubleshooting SQL Server 2008
- Involved in database migrations, cloning production system, for testing and development.
- Extensively worked with indexes and table partitioning.
- Experience in Writing shell scripts, SQL scripts and implementing auto manageable scripts.
- Planning for storage spaces requirements and placing them for optimum I/O performance.
- Tuning the databases for optimal performance.
- Partitioning tables by determining the suitable methodology to improve performance and manageability.
- Implemented custom PL/SQL packages for DBA related jobs such as purging custom tables, loading data into custom tables etc.
- Provided application support to users and created a log of all the problems with solutions for future reference.
- Experience in implementing hot, cold and RMAN scheduled backups and performance tuning of SQL statements.
Environment: Oracle 11g/10g, RAC, ASM, Data Guard, Shareplex,TFS, OEM 10g/11g Grid Control,SQL Server 2008 RMAN, AIX OS 5.1,5.2,5.3, Toad, UML, PL/SQL, SQL*Plus.
Confidential, NJ
SeniorOracle Database Administrator
Responsibilities:
- Handling high availability (24/7) database in onshore-offsite model
- Handling Performance issues at application level and database level
- Applying regular quarterly CPU patches and keeping the databases upto date with the Oracle security updates
- Providing support to the data warehouse jobs and tuning queries.
- Upgrading the databases from 9i to 10g and 11g
- Installation, configuration and maintenance of standby databases using Dataguard
- Cloning the Oracle home and upgrades.
- Creating health monitoring Unix shell scripts
- Scheduling the health scripts using cron tab, mailx.
- Working with DB2 utilities for maintenance (Reorgchk/Reorg/Runstats), data movement (Export/Import/Load/Move/Look)
- Troubleshooting DB2 database issues using db2diag, db2pd, db2dart, db2inspect, db2trace, db2support, db2top, explain plan, db2exfmt and snapshots. Partitioning of huge tables.
- Working closely with the application teams on scheduling the patching windows.
- Cloning the databases regularly for the reporting databases and stage environments.
- Tuning the database level performance issues.
- Taking AWR reports and analyzing them periodically for better performance.
- Creating SOX level auditing scripts and making the validations and changes as required.
- Creating Backup schedules and taking periodic backups both offline and online using RMAN
- Participating in corporate DR drills and ensuring the data protection.
- Trouble shooting the application server issues.
- Defragmentation of the tables using exp/imp, Reorg and shrink
- Creating process documents for the DBA activities and making sure that team adhere to the process outlined.
- Creating shift schedules
- Maintaining stringent response / resolution SLAs.
- Creating partitions for partitioned tables periodically
- Managing materialized views and refreshes
- Creating DB links to heterogeneous environments for the data warehouse
- Periodic index management, index rebuilding.
Environment: Oracle 11g/10g/9i,DB2 V9.7 RAC, ASM, Data Guard, Oracle Enterprise Manager (OEM), OEM 10g/11g Grid Control, RMAN, Linux(RHEL 4.x,5.x),Sun OS 5.9/5.10,AIX OS 5.1,5.2,5.3, Toad, Performance Tuning Shell Scripting, PL/SQL, SQL*Plus.
Confidential, New York, NY
Senior Oracle Database Administrator
Responsibilities:
- Creating New RAC database as per the requirement.
- Working on Space management, User management for smooth running of the databases.
- Refreshing data from prod to lower environments for testing
- Creating the new jobs for report generation, Database monitoring and alert management.
- Creating RMAN backup strategies as per the requirements.
- Creating, adding new disk groups and members to ASM for new databases
- Resolving user issues immediately and closing the issues on timely manner
- Monitoring jobs, troubleshooting on failure and addressing alerts
- Performed heavy data loads using SQL *Loader, Export, Import for backing certain tables.
- Creating users, allocation to appropriate table space quotas with necessary privileges and roles for all databases.
- Configuring TNSNAMES.ORA and LISTENER.ORA for SQL*NET connectivity.
- Monitoring table space size, resizing table space, relocating data files for better disk I/O.
- Designed Backup Strategies and Disaster recovery plans depending upon the criticality of the Databases.
- Performed large data loads through SQL*Loader.
- Managing archive logs, DB-links, partitions.
- Involved in database schema creations
- Monitoring the growth of the database to ensure the smooth functionality of daily activities.
- Performing logical and online backups.
- Monitor and resize Oracle database objects (table spaces, tables, and indexes).
- Creating privileges, roles and user profiles. Granting resources to users.
- Importing of schemas and tables.
- Plan and implement appropriate backup and recovery strategies for the database.
- Rebuilding indexes for faster access and to reduce disk I/O.
- Observing Logs generated every day.
Environment: Oracle 9i/10G/11G, MS SQL Server 2000/2005, Oracle Enterprise Manager (OEM), OEM 10g Grid Control, RMAN, RAC, ASM, DBArtisan, DataGuard, AIX OS 5.1,5.2,5.3,Linux( RHEL 4.x, 5.x),Sun OS 5.8/5.9/5.10, Toad, Shell Scripting, PL/SQL, SQL*Plus.
Confidential
Oracle Database Administrator
Responsibilities:
- Checking health systems of Oracle Database.
- Installed Oracle10g RAC with ASM on Raw devices
- Handling different database issue and resolving those within SLA.
- Installed Grid control and maintaining the databases through the Enterprise Grid Control
- Implemented RMAN backup and tested various recovery scenarios
- Implemented Backup Policy and Move the backups to the Tape drives at regular intervals
- Generated the Entity-Relationship diagrams using ERWIN tool
- User Administration & Security Implementation (Role Based and / Privilege Based)
- Schema refreshment & Database Up gradation
- Used Data pump utility
- Backup & Recovery of database
- Linux & HP-UX System administration like installing Operating System Patches, Job scheduling, Space management etc
- Oracle10g Application Server administration
- Creating shell scripts for automating manual jobs
- Creating and Maintaining the Database & Tuning the database for optimal performance
- Involved in Oracle database logical and physical Backups
- Ensure the completion of all daily backups.
- Monitoring database growth and space management.
- Checking the alert logs regularly
- Configuring the database to archive mode
- Maintaining database security by creating users and profiles
- Resolving user process error
- Monitoring Database Performance by Dynamic Performance views.
Environment: Oracle 10g/9i, Toad, Oracle Enterprise Manager (OEM), RMAN, RAC, Data Suse Linux Advanced Server and AIX 5.1/5.2/5.3, TOAD, Performance Tuning, Shell Scripting, PL/SQL, SQL*Plus