Senior Oracle Dba Consultant Resume
SUMMARY:
- More than 12 years of IT experience as Senior Oracle Database Administrator in Production environment.
- Expertise in Oracle 11g/10g/9i/8i database administration in high availability production environment.
- Oracle 11g/10g/9i Real Application Clusters (RAC) installation and maintenance.
- Extensive experience in production database support.
- Expert in backup/recovery using RMAN, installation, configuration, apply patches, troubleshooting, performance monitoring and tuning.
- Transforming Logical data model into Physical data models.
- Solid experience in disaster recovery (standby & DataGuard), routine maintenance for Oracle databases
- Solid experience in Oracle Recovery Manager (RMAN), advanced replication, and standby database using Data Guard 9i/10g/11g
- Database backup concepts and options such as user - managed backup, RMAN-managed backup with or without catalog, operating system backup, cold and hot backup, full backup, incremental and cumulative backup. Implementing backup and recovery strategies.
- Employing Oracle Enterprise Management (OEM) with standard management, diagnostic, tuning, and change management packs to perform various administrative tasks. Setting-up and configuring Oracle Management Server (OMS) to monitoring database operation.
- Data transferring with export/import utilities and Data Pump and SQL* Loader.
- Performance monitoring/tuning/troubleshooting on Oracle, Unix, Linux, and Windows NT/2000/2003 servers
- Installation, configuration, upgrading and migration of Oracle software (9i, 10g) and tools. Applying patches under UNIX, Linux and Windows platform.
- Unix Shell scripts for hot backups, SQL*Loader, export and import of database
- Perform Daily Monitoring of Oracle instances using Oracle Enterprise Manager, TOAD, monitor users, tablespaces, memory structures, rollback segments, logs, and alerts
- Excellent interpersonal and strong analytical, problem-solving skills
- Knowledge of Banking, Data Warehousing, Telecom and ERP technologies.
- IT Consultancy skills.
- Excellent written and verbal communication skills with all levels of personnel within a client organization.
- Persuading and influencing all levels of management in the design and implementation of an integrated Oracle solution.
TECHNICAL SKILLS:
Databases: ORACLE 11g Release 2 RAC, Oracle 10g RAC, 9iRAC, 9i/8.x/7.x. SQL Server 2008
DBA Tools: SQL developer, DBA Studio, Oracle OEM, TOAD, Spotlight, Quest CentralDB Artisan, SQL server Enterprise manager, Query Analyzer.
Operating Systems: Sun Solaris, HP-UX, IBM-AIX Linux (Redhat, SUSe, Oracle Enterprise Linux) & Windows 2000 professional.
Cluster Wares: Veritas, Oracle Cluster Ware
Case Tools: Platinum ERWIN, Sybase Power Designer.
Languages: Developer/2000, Developer 6i.
ETL TOOL: Oracle warehouse builder, IBM Datastage.
Hardware: Sun Sparc, IBM PC, HP Superdome, HP superdome 2, IBM Blades.
Volume Manager: Veritas Volume manager.
Storage: EMC SAN with SRDF, IBM San with PPRC.
ORACLE Tools: OS watcher, L-TOM, Oracle GoldenGate, Rapid Install, AD utilities, Oracle Universal Installer
High Availability: Physical Data Guard, Logical Data Guard.
Oracle Storage: ASM (with ASM Lib), Oracle 11g R2 ASM
Data Loading: Oracle data pump, SQL* Loader, Export/Import
Grid Infrastructure: ORACLE 11g R2 grid Infrastructure.
Messaging System: ORACLE advanced Queue, IBM Websphere MQ v 7
ORACLE Security: ORACLE Wallet, Oracle Transparent data encryption
ORACLE: Diagnostic10046 trace, systemstate dump, hang analyze, event tracing
Monitoring Tools: HP openview, Guardium, Oracle Enterprise Manager, Introscope 7, IBM Tivoli
Automation Tools: HP Server automation
Scheduling Tools: Control-M, Maestro
Data Modeling: ER-Diagrams, Star schema, Snow Flake schema, Sybase Power Designer, ER-Win
Oracle Financials: Oracle E-Business suite R12
Virtualization: Oracle virtual Box, Oracle VM, HP-UX VPAR, IBM-AIX LPAR
Version Control: PVCS
WORK EXPERIENCE:
Confidential
Senior Oracle DBA Consultant
Responsibilities:
- Installing Oracle 11g R2 Grid Infrastructure and Oracle 11g R2 RAC software on HP, Linux and IBM AIX platforms.
- Setting up multiplexed Oracle Data Guard environment as migration strategy to BDC data center.
- Performing Oracle Data Guard switch over between Production and DR servers using Oracle Data Guard Broker.
- Working with client to perform Pre-cutover activities before migrating Data Guard environment from CPO to BDC data center.
- Installing, Creating and managing new Oracle 11g R2 RAC Dev and PAT environment at BDC centre.
- Extensively using RMAN to backup and Recover 10 TeraByte of DB using IBM TSM media manager layer.
- Implemented Security in different levels of database. Utilizing Oracle Advanced Security options (Transparent Data Encryption using wallet).
- Applying quarterly released CPU and PSU patches to Grid Infrastructure and Oracle RDBMS.
- Performed data migration across databases and platforms.
- Worked with users, analysts, developers and system admins to realize root cause of performance issues, modelling, debugging and troubleshooting.
- Provide 24*7 production database support as well as development databases to ensure maximum availability of database for all applications.
- Database cloning/refresh from production to production reporting, and backup.
- Extensive experience with IBM TSM Tivoli monitoring, IBM TSM backup media manager layer.
- Converting Physical Standby database to Snapshot Standby database for User and application testing and vice versa.
- Working with Unix SA to patch Database servers.
Confidential
Senior Oracle/SQL server DBA
Responsibilities:
- Leading Team of 4 senior Production DBAs in Infrastructure migration project.
- Participating in planning and execution phases of Infrastructure migration project along with other teams.
- Demonstrating planning and execution activities to the senior management of the bank.
- Installing Oracle 11g Release 2 RAC software on HP (Superdome 2) &Red Hat Linux (HP proliant) platforms.
- Creating Oracle 11g RAC instances and databases which are failover and load balance enabled.
- Installed Oracle E-Business suite R12 on Oracle Enterprise Linux and HP-UX servers.
- Provide operational support, including troubleshooting and resolving database and application problems.
- Applying Oracle E-Business R12 Suite patches.
- Developed, analyzed, designed, and implemented the organization’s storage infrastructure/architecture to ensure high levels of data quality and availability.
- Managing physical database resources.
- Configuring and managing oracle’s clusterware and its components (voting disk, OCR, VIP & nodeapps).
- Installing and configuring Oracle GoldenGate on HP-UX & IBM-AIX servers.
- Setting up uni-directional and bi-directional replication using Oracle GoldenGate.
- Implementing, maintaining and testing backup & recovery strategies using RMAN utility.
- Migrating Oracle 10g Databases to Oracle 11g R2 (Oracle 11.2.0.3)
- Applying Oracle quarterly released PSU patches for Oracle 11g R2 DBs (Oracle 11.2.0.3)
- Setting up auditing, security standards as per Bank’s standards to be PCI compliant.
- Monitoring system and instance resources & architecture to ensure continuous database operations (i.e., database storage, memory, CPU, network usage, and I/O contention).
- Providing 24*7 on-call technical support on rotation basis.
Confidential
Senior Oracle DBA (Production)
Responsibilities:
- Installation of Oracle 11g & 10g standalone as well as RAC software on Unix (Sun, HP, Linux and AIX) platforms.
- Creation of Oracle 11g & 10g Dbs.
- Applying quarterly released Oracle PSU and CPU patches to Dev, QA, UAT and Production environments.
- Participate in the design and maintain the physical models of multiple databases consistent with BA guidelines and the Information Strategic Plan.
- In collaboration with project teams, define access security and capacity requirements.
- Develop, implement and maintain the standards and procedures related to the creation, maintenance and usage of all database resources.
- Responsible for the database tuning and administration, backup strategies, data security.
- Work in close collaboration with the ongoing project and Operation teams.
- Designing, testing, correcting and optimizing systems to ensure that the objectives of the system are met and that the outputs produced are in accordance with client requirements.
- Identifying, monitoring, managing, and reporting risks, problems and change management requests
- Creating/managing and refreshing Materialized views manually.
- Creating & enforcing security and High availability architectural standards.
- Participating in Disaster Recovery exercises.
- Participate in monthly release activities for ROGERS.
- Providing On-Call DBA support on rotational basis to ensure databases are operational 24x7.
- Restored & recovered 2 TB DB using RMAN and Symantec Netbackup
- Stabilized execution plan which changed due to table segment size and DB initialization parameters.
- Ensuring DB is compliant with IBM security standards (ISec) by running security scans every quarter.
- Working with DB auditors (external and internal) to address DB security leaks.
Confidential
Senior Oracle DBA (Infrastructure/Production Support)
Responsibilities:
- Production support for existing Oracle Databases.
- Actively involved in Performance/tuning of DB applications.
- Actively Involved with Storage and System administrators in capacity planning.
- Installed Oracle 11g Release 2 Grid Infrastructure software on IBM AIX servers to use Oracle’s ASM.
- Installed ORACLE 11g Release 2 Database Software on IBM AIX servers.
- Applied ORACLE security patches for Oracle 11g R2.
- Installed and configured ORACLE messaging Gateway for message propagation between ORACLE AQ and IBM Websphere MQ.
- Installing, configuring and creating Oracle 11g RAC Infrastructure/DataBases architectures on AIX.
- Configured ORACLE restart on AIX server.
- Installed and configured Oracle 11g R2 32-bit client software on AIX servers.
- Integrating Oracle Database applications with IBM websphere MQ applications.
- Configuring DB for Inbound and Outbound message propagation.
- Managing and monitoring the Messages flow from Oracle’s Advanced queue to IBM MQ and vice versa.
- Monitoring Oracle Messaging Gateway.
- Working with IBM Tivoli Monitoring Agent development team in engineering IBM Tivoli agent for Oracle Messaging Gateway monitoring.
- Implementation of iSeC security standards.
- Developing RMAN’s Backup and Recovery strategies for High Availability of application.
- Using Oracle 11g Release 2 compression and Encryption capabilities to compress and secure the critical trading data.
- Production support/On-call rotation for existing Oracle Databases.
Confidential
Senior Oracle DBA (Production)
Responsibilities:
- Installed/Cloned Oracle Software (Oracle 10.2.0.4.0 ) on HP machine using Silent Installation method.
- Built Physical Standby DB for Confidential North America Operations.
- Database Production support/on-call rotation for existing Oracle production Databases.
- Participating in On-Going Performance/tuning issue.
- Successfully installed and configured Oracle Grid Control 10.2.0.1 (Oracle Management Server & Oracle Agent) on Linux Box.
- Successfully upgraded Oracle Grid Control to Oracle Grid Control 10.2.0.5.0.
- Installing and configuring Oracle GoldenGate on Linux servers.
- Successfully Migrated the character set of production DB from WE8MSWIN1252 to AL23UTF8 using csscan utility.
- Used Oracle 10g data guard (data guard broker, data guard observer) to automate database failover/switchover between primary and standby DB.
- Used ASMLib on Oracle Enterprise Linux to configure ASM disk for ASM instances.
- Created Logical Standby DB using ASM (Primary and Standby DB both used ASM).
- Providing 2nd Level on-call support on rotational basis.
- Working with auditors and application developers for remediation of audit action items.
- Installing/configuring/managing SQL server 2005 named Instances for Business reporting purposes.
- Production support for existing SQL server Databases.
- Actively participating with DB architects for Capacity planning for existing DBs.
Confidential, Brampton, ON
Senior Oracle DBA (Production)
Responsibilities:
- Converted Oracle 10g Non-RAC database to 10g RAC database.
- Installed Oracle E-Business suite R12 on Redhat Linux.
- Applying Oracle E-Business R12 Suite patches.
- Installing and configuring Oracle GoldenGate on AIX unix servers.
- Setting up Uni-directional replication using Oracle GoldenGate.
- Creating standby databases as part of the DR strategy and ensuring the Primary and standby DB are in sync with each other.
- Upgrade of DB running on Oracle 9i to Oracle 10g.
- Managing and supporting technical changes being implemented into the environment.
- Actively participating in Design (logical and physical), testing and implementation phases of Software Development life cycle for new projects.
- Responsible for successful execution of the ticket, documenting status, providing feedback to the owner and closure of the tickets.
- Actively participating in DR exercise to ensure the restoration of business continuity in a real disaster scenario.
- Actively participating with application owners/ application developers to fine tune the application code and optimal utilization of DB and system resources. Statspack and AWR reports are thoroughly analyzed to obtain the performance problems.
- Using various Oracle tools like (OS watcher, L-TOM) to capture the run time events and operating system/IO statistics and events.
- Ensuring the successful backups are happening and storing on tape using Net backup.
- Participating in BCV and RMAN backups.
- Providing after hours On-call Support for database related problems as part of an on-call rotation.
- Documented Oracle physical and logical data models. Developed master data management models. Reviewed and optimized current Oracle table structures.
- Implemented Oracle Data Guard, Standby, Oracle Enterprise Manager 9i/10g/11g Grid Control. Configured OEM / Grid Control to generate alerts for critical thresholds.
- Maintaining Rogers' standards for database implementations and service.
- Installing/Administering SQL server 2005 Instances and DBs on Windows servers.
- Production Support/On-call rotation for existing Oracle and SQL server Databases.
Confidential, Toronto, ON
Senior Database Administrator (Production)
Responsibilities:
- Verifying the node reach ability, user equivalence, node connectivity, system requirements and kernel packages by using Oracle Clusterware CVU (Cluster Verification Utility) utility.
- Installation, configuration and management of Oracle 10g Clusterware (CRS, Voting Disk, OCR).
- Managing CRS (Cluster Ready Services) for start, stop and status checking.
- Managing Voting disk and OCR (Oracle Cluster Registry).
- Installation, configuration of Oracle 10g RAC software.
- Creating Real Application Databases which are Failover enabled and Load Balanced.
- Managing RAC DB using srvctl utility for various administration tasks.
- Installation and creation of Oracle 9i RAC software on VeritasClusterware.
- Creation of RAC DBs which are Failover enabled and Load Balanced.
- Installation, configuration of ORACLE 9i and 10g NON-RAC software on Sun Solaris platform.
- Migrating Oracle 9i Release 2 DB to ORACLE 10.2.0.3.0.
- Creation of RAC and NON-RAC databases on SUN Solaris platforms.
- Participating in the design, engineering, configuration, testing, and performance tuning of all Relational database management systems (RDBMS).
- Evaluating and recommending the acquisition of database and data management solutions to meet changing business requirements and to continuously optimize the business application environment.
- Coordinating and oversee ongoing maintenance and upgrades for all RDBMS's with internal teams and external service providers.
- Providing rigorous testing for new DBMS releases and patches, configuration changes, indexing strategies, maintenance routines, upgrade and data migration strategies, data distribution (replication) strategies, extraction-transformation-load (ETL) strategies, high availability strategies, disaster recovery, and other application design strategies.
- Providing project oversight for large-scale complex database application changes and implementation.
- Providing technical leadership in the Unix and Wintel based application environments working with the AEE group and the LOB CIO’s:
- Provides consulting services to application development teams to understand the World Markets DBMS standards and system infrastructure to optimize application performance attributes prior to production implementation
- Continuously develop and improve Confidential standards for software tools and system design
- Employ Confidential standards and industry best practices when designing and implementing new solutions.
- Actively provide leadership and technical expertise to ongoing problem identification/resolution and root cause analysis process for database environments:
- As a Level 3 escalation resource for problem determination and resolution of all issues encountered during development, quality assurance and user acceptance testing, production system integration, and all issues escalated by Level 1 and Level 2 Command Center staff post-production.
- Accountable for adhering to problem management process for DBMS related incidents consistent with Global processes to meet service expectations of regional customers.
- Provide mentorship to database engineers and Confidential Command Centre analysts in all aspects of database management, automation, trouble-shooting, and problem resolution.
- Accountable for problem determination, troubleshooting and resolution of database-driven application problems through use of system diagnostic utilities and industry recognized best practices.
- Participates in the improvement of support processes, subject matter expertise, and technical capabilities with the Database Services and Command Center teams to continuously improve service delivery and efficiencies.
- Participates as a team member in evaluating system resource utilization and storage usage/capacity, and makes recommendations to increase application performance to meet business and financial requirements.
- Support production environments, configuration, testing, and performance tuning of all Oracle database environments.
- Verify the database support requests and execute them in timely manner as the business SLA’s.
- Coordinate and oversee ongoing maintenance and upgrades for all Oracle with internal teams and external service providers
- Manage the production, deployment & maintenance of Oracle RAC. Provide expertise around optimizing performance and ensuring high-availability.
- Provide consulting services to application teams and possess good understanding of Confidential DBMS standards and system infrastructure.
- Provide rigorous testing for new Oracle server releases and patches, configuration changes, indexing strategies, maintenance routines, upgrade and data migration strategies, data distribution (replication) strategies, extraction-transformation-load (ETL) strategies, high availability strategies, disaster recovery, and other application design strategies.
- Managing problem/project tickets queue and maintaining communication with business team members.
- Consult with problem/project ticket owners in resolving issues and executing scripts as per the requirements.
- Continuously monitor the request queue and prioritize tickets in the queue as per the guidelines from the management.
- Responsible for successful execution of the ticket, documenting status, providing feedback to the owner and closure of the tickets.
Confidential, New York, USA
Senior Database Administrator
Responsibilities:
- Installation of Oracle software (10g, 9i/8.x) on SUN SOLARIS & Windows 2000 professional.
- Creation and configuration of oracle based databases on Sun Solaris and Windows platforms.
- Conduct research and provide advice to other informatics professionals regarding the selection, application and implementation of relational database management systems.
- Design/support in defining and modifying logical and physical database model for data warehouse and data marts.
- Managing users by assigning them privileges through roles, and quotas.
- Enforcing security using encryption/decryption and Fine grained access control.
- Entirely responsible for maintaining the Production, Test and Development databases of the company, which mainly includes the following:
- Managing files of a database.
- Replicating the data between production databases (Avis and Budget) residing on same server using snapshot master replication method and Oracle streams.
- Analyze SQL queries and make recommendations to Data Warehouse engineers and extraction programmers for possible alternates to accomplish the tasks.
- Execute backup procedures: COLD backup, HOT Backup with database in Archive log mode using RMAN & also Full and Incremental Database Exports.
- Execute restoration procedures of complete & incomplete media recovery using RMAN. Restoring full backup & Time based Recovery.
- Design and implement Networking between Oracle Servers on different operating Systems.
- Extensive hands on working experience of Oracle Utilities: Export, Import, SQL*Loader, RMAN.
- Hands on working experience of TOAD, Spotlight, OEM and DBA studio.
- Experienced in Partitioning large tables across physical disks to increase throughput and better management and maintenance.
- Provide 24x7 system support as a system DBA for Production and development systems on a rotational basis
Confidential
Oracle DBA
Responsibilities:
- Installation and configuration of ORACLE and MS SQL server 2000 software, installation and configuration of application database at customer sites.
- Diagnose and tune performance problems and locking conflicts using Oracle database monitoring and diagnostic tools (SQL TRACE, EXPLAIN PLAN, TKPROF, UTLBSTAT/UTLESTAT) and dynamic performance tables/views.
- Writing bespoke PL/SQL code (packages and procedures) to accomplish the requirements for the production and Admin modules of the ERP.
- Performing the Tuning and Maintenance of the application and database.
- Performing physical and logical backups of application database running on ORACLE and MS SQL server 2000.
- Tuning RDBMS to optimum levels of performance.
- Checking and controlling user access and authentications to the DB through roles and system/object privileges.
- Implementation of audit trails for key transaction/data.
- Provide rigorous testing for new DBMS releases and patches, configuration changes, indexing strategies, maintenance routines, upgrade and data migration strategies, data distribution (replication) strategies, extraction-transformation-load strategies, high availability strategies, disaster recovery, and other application design strategies.
- Creating and implementing the physical design form the logical design.
- Verifying that all instances are up and running and checking unusual entries in alert log and trace files on daily basis.
- Checking of CPU, memory and disk utilization and checking the existing constraints and indexes. Also checking and verifying rollback segments and temporary tablespaces.
- Provide 24x7 system support as a system DBA for Production systems on a rotational basis
Confidential
DatabaseAdministrator (ORACLE)
Responsibilities:
- Planning, Installation and deployment of Oracle based applications to 3rd party Sites.
- Writing bespoke PL/SQL code according to client specification.
- Writing Shell scripts to wrap PL/SQL code.
- Advising customer of coding techniques for optimum performance.
- Performing the Tuning and Maintenance of the product specific database.
- Performing physical and logical backups and advising Customer of Backup and Recovery routines.
- Tuning RDBMS to optimum levels of performance.
- Installation of Oracle Software at customer’s sites and Islamabad office on Sun and HP servers.
- Checking and controlling user access and authentications to the DB.
- Configuring the Sun and HP servers for the installation of ORACLE software and creation of DB.
- Verifying that all instances are up and running and checking unusual entries in alert log and trace files on daily basis.
- Overseeing the day-to-day requests for objects creation, user creation and structure modifications.
- Provide 24x7 system support as a system DBA for Production systems on a rotational basis.
Confidential
Computer Officer/DBA (ORACLE)
Responsibilities:
- Smooth functioning and management of Database. This included controlling user access, backup and recovery, storage management, application software upgrades, SQL Tuning, and automating support issues with bespoke program suites.
- Analyzing, designing, development and implementing new software to fulfill the needs of organization.
- Working for the welfare of 30 Database operators under my jurisdiction.
- Performance reviews for Oracle resulting in massive gains for Oracle based systems
- Administration and planning of In-house databases for high performance output.
- Taking Backups of database using oracle’s features for backups and restore.
- Providing Oracle Consultancy to other National Logistic Cell departments to integrate organization’s skill set.
- Tuning RDBMS to optimum levels of performance for optimal usage of database resources.
- Checking and controlling user access and authentications to the DB.
- Overseeing the day-to-day requests for objects creation, user creation and structure modifications.
- Checking of CPU, memory and disk utilization and checking the existing constraints and indexes. Also checking and verifying rollback segments and temporary tablespaces.
- Verifying that all instances are up and running and checking unusual entries in alert log and trace files on daily basis.