Oracle Dba/aws Cloud Engineer Resume
O Fallon, MO
SUMMARY:
- An astute Oracle professional, self - motivated with around 6+ years IT experience as an Oracle DBA (versions 12c/11g/10g/9i) in Oracle products, both production and development environments spanning several industries: production, health care, financial services, and high tech.
- Installation, upgrade, maintenance, administration of multi-terabyte standalone and RAC on multiple platforms like IBM-AIX, Sun-Solaris, UNIX, Linux, Windows.
- Hands on experience in test, development databases, production support and day-to-day activity to ensure zero alert thresholds is met 24x7.
- Extensive knowledge and experience on Data Warehouse using ETL tools like Informatica.
- Extensive knowledge and experience on Amazon Web Services(AWS) Technologies like: EC2, RDS, Route53, ELB, CloudWatch, AMI (Amazon Machine Images), IAM, VPC, Subnets.
- Experience with installation of Grid Infrastructure for ASM, RAC. Very good understanding of GpnP (Grid Plug n Play).
- Migrated OS file system storage to ASM with minimal downtime and administered ASM disk groups and instance.
- Server side and Client-side fault tolerance achieved by configuring SERVICES and TAF (Transparent Application Failover).
- Proactively monitored and diagnosed symptoms using OEM (Enterprise Manager) to significantly increase the probability of success of production db and application.
- Ample knowledge and experience on Amazon Web Services and involved ongoing database technical support for RDS, EC2 environment.
- Responsible for launching EC2 instances w/ Linux AMI and bootstrapping with Apache using Bash scripting, using auto-scaling and load balancers (ELB).
- Experience in Performance Tuning (I/O, Memory & SQL Tuning etc) by using tools/utilities ESTAT/BSTAT, STATPACK, End-user tuning and troubleshooting using various tools like EXPLAIN PLAN, AUTOTRACE, SQL TRACE, TKPROF, AWR, ADDM, ASH, v$ performance views.
- Knowledge of Shareplex for Materialized Views, Good experience with Data Modeling to translate logical data elements into the physical database design.
- Experience in implementation of enterprise databases on enterprise Storage Solutions using Storage Area Networks (SAN) /Network Attached Storage (NAS).
- Involved in setting up of POC Environment for OBIEE, which involves Installation of OBIEE Platform, OBIEE Applications, Informatica; Configuring OBI Server, OBI Presentation Server and DAC.
- Build complex entity relationship models - both logical and physical database design.
- Experience in resolving complex restore and recovery issues using RMAN.
- Experience in working on Remedy (Incident management / Change management) BMC Patrol.
- Experience working with Application development team in Release and Deployment Management processes.
- Experience in UNIX Shell Scripting for automating the DBA tasks like User maintenance, Performance Monitoring of CPU, Disk and Memory usage, and File system monitoring.
- Good Experience in Hot/Cold Backups, and Cloning of Databases.
- Extensive knowledge on database backup/recovery strategy (RMAN), Import/Export & Datapump, Capacity Planning, Replication (Streams) standby databases, Oracle configuration management, Dataguard, database cloning, refresh and patch management and Oracle Exadata Database Machine.
- Experience in Database Security and Auditing.
- Extensive knowledge in Korn shell and Perl scripting.
TECHNICAL SKILLS:
Databases: Oracle 12c, 11g, 10g, 9i, 8i, 8.x MS SQL Server 2005 and 2008
Languages: C, C++, Java and J2EE
Application server: Oracle 9iAS Release 2, Websphere MQ, Web logic, iPlanet
Tools: and Utilities: OEM 2.2, Forms6i, Reports6i, SQL*Loader, Oracle Workflow, Oracle PL/SQL, Designer 6i, Developer/2000, Discoverer 3.1(Administration & User) Visual Basic 5.0
ERP Applications & Tools: Oracle Applications - 11i, 11.0.3, 12.0.6, 12.1.1
ETL Tools: Informatica (Power Mart & Power Center)
Decision Support Tools: Business Objects, Brio, Web Intelligence and Apache
Web Technologies: Weblogic, IBM Websphere MQ
Fusion Middleware: IDM, OIM, OAM, SOA, OBIEE and SSO
Replication: Golden Gate, Streams and Oracle Advanced Replication
Hardware: Sun Fire V880, Sun Ultra Enterprise 3500, Sun Ultra Enterprise 250/450, Acer Altros19000 DDE Org Supermax RISC Plus IBM, Dell 6600, Compaq Proliants, Compaq DL580, IBM Netfinity
Operating Systems: RHEL 4.x/5.x/6.x/7.x, Sun SPARC Solaris 2.x, CentOS, SUSE, Linux Red Hat Advanced server, HP-UNIX, IBM AIX Unix Windows 2000 advanced server, Windows XP, Windows 2003 and Windows 2008
PROFESSIONAL EXPERIENCE:
Confidential, O’Fallon, MO
Oracle DBA/AWS Cloud Engineer
Responsibilities:
- Install, Setup and Configure Oracle Clusterware and database software.
- Performed upgrades to Oracle 11g from earlier versions of Oracle.
- Successfully upgraded databases to version 11.2.0.4 and applied latest PSU patches.
- Performed rolling Grid Infrastructure upgrade from 11.2.0.4 to 12.1.0.2
- Implement and enforce database security to meet PCI requirements.
- Migrated development/production Oracle databases to AWS RDS.
- Assisted in developing consistent distributed databases by using shading and replication on AWS platform.
- Created network architecture on AWS VPC, subnets, Internet Gateway, Route Table and NAT Setup.
- Achieved HA (High Availability) and FT (Fault Tolerant) for AWS EC2 Instances using the AWS Technologies like: EC2, Route53, ELB, CloudWatch, AMI (Amazon Machine Images), VPC, Subnets.
- Worked with IAM to manage the users and groups using IAM by assigning individual policies and roles to each users and group as per requirements.
- Plan and implement backup, recovery solution using RMAN.
- Plan and develop contingency solutions for supported databases.
- Perform ASM Installation, Migration & Configuration as per the requirements.
- Migration of Non-ASM standalone database to One Node RAC.
- Migration of Databases to Oracle Exadata machines using datapump import.
- Creation and setup of physical standby databases and oracle active Dataguard on exadata machines.
- Designed, implemented SSL/TLS on Oracle databases for network encryption of data; Generated wallet, keystore, and imported certificates into wallets.
- Manage RAC environment for Day to Day Database administrator, performance tuning.
- Securing stored data using oracle transparent data encryption by installing TDE wallet and creating encrypted tablespaces and storing sensitive data in encrypted tablespaces.
- Successfully performed Disaster recovery exercises for highest availability using DataGuard broker (DGMGRL).
- Performed database rolling upgrades and PSU patching.
- Provide the support for day to day database maintenance activities; planning & scheduling the changes.
- Enforce and maintain database audit and security standards for PCI standards.
- Develop and implement high availability, scalability and disaster recovery solutions dataguard, replication, streaming & golden gate as per the application's business needs to meet the required SLAs.
- Database performance monitoring, tuning to optimize overall response times.
- Performed online database reorganizations as required to improve database performance.
- Administer all physical and logical database and storage structures.
- Reviewing and resolving database backup and OEM alert reports on daily basis.
- Support for Development, Stage and Production databases hosting business critical applications.
- Experience working with Enterprise Manager Cloud Control 12c.
- Managing and mentoring offshore teams and provided 24x7 on call support.
Environment: Oracle 12c/11g 3-node RAC, AWS (EC2, AMI, VPC, Route53), RHEL 6.7/5.11, IBM AIX, CRSCTL, SRVCTL, RMAN, ASM, OBIEE, Physical Standby db, Data Guard Broker, OEM Grid Control, Data pump, SQL Developer/TOAD, SQL* Plus, Putty, SSH
Confidential, Jersey City, NJ
Oracle DBA
Responsibilities:
- Managed database on 11g R2 RAC.
- Wrote PLSQL jobs and scheduled via oracle scheduler to run daily.
- Excellent knowledge of 11g RAC srvctl, crsctl, ocrdump, ocrcheck and ocrconfig utilities
- Performed converting single node instance to RAC and Adding instance to the existing RAC
- Administered GI resources like ASM, SCAN Listener, node listener, OCR, Vote files using CRSCTL and SRVCTL utility.
- Successfully added nodes to the existing RAC cluster by extending GI and Oracle binaries.
- Troubleshooted Node eviction (split brain syndrome) issue due to flooded interconnect traffic.
- High availability and load balancing achieved with Services which was fully integrated with 11g/12c Grid Infrastructure.
- Perform Database monitoring, Tuning RAC.
- Client-side fault tolerance achieved by configuring TAF (Transparent Application Failover) in RAC as well as Data Guard env.
- Upgraded more than 15 db from 10.2.0.1 to 11.2.0.1 and then 11.2.0.1 to 11.2.0.2 including patchset updates using opatch.
- Wrote procedures/packages to load data using new SQL features like copy.
- Effective use of tuning packs like ADDM, AWR, ASH, Tuning Advisors to troubleshoot resource-intensive SQL, enqueues, locks.
- 50% improved Performance of fetching LOB data by creating partitions. Data footprint reduced by purging older partitions to lowered operational cost.
- Data migration using Data Pump export/import to bring historical data from application so to analyze the growth of db over a period.
- Installing ASM environment and migrating database from NON-ASM to ASM
- Cloned databases using Export Import, Data Pump and RMAN Duplicated Databases.
- Worked on logon triggers to trace session coming from applications servers.
- Clone databases using RMAN duplicated.
- Provided technical troubleshooting and give consultation to development teams.
- Worked on loading of data from several flat files to Oracle database Targets.
- Designed the procedures for getting the data from all systems to Data Warehousing system.
- Tuned complex SQL's using SQL tuning advisor and SQL Access advisor.
- Applied High priority, security patches downloaded from Meta link
- Used Oracle Enterprise Manager to monitor database health and check log files for errors.
- Installed operating systems, patching, upgrading managing configurations
- Managed User accounts and granted directory permissions to secure UNIX systems in meeting industry practices
Environment: Oracle 12c/11g 3-node RAC, RHEL 6.6/7.1, OEL 5.8, IBM AIX, Grid Infrastructure, CRSCTL, SRVCTL, RMAN, ASM, Physical Standby db, Data Guard Broker, OBIEE, OEM Grid Control, Data pump, TOAD, SQL* Plus, Putty, SSH
Confidential, Fort Lauderdale, FL
Oracle DBA/Developer
Responsibilities:
- Installation, up gradation and Maintenances of Oracle Databases on Linux & Windows platforms.
- Used Shell Scripting for automation of job Scripts, for Startup and Shutdown, Health Check of Databases, Analyzing of Tables and Rebuilding of Indexes.
- Proactively monitored the database and database access, and maintained the database security.
- Extensively worked under UNIX environment to provide DBA support.
- Supported data management through on-site & off-site storage and retrieval service.
- Perform production system problem analysis and recommend corrective measures in a timely manner.
- Backup of database Logical and Physical (hot and cold) procedures and also using RMAN.
- Perform database monitoring, capacity planning and performance tuning.
- Scripted jobs to refresh tables/schemas and databases as well.
- Generating AWR reports to deal with performance issue.
- Tuned database SQL statements and procedures by monitoring run times and system statistics.
- Developed PL/SQL Packages, Procedures and Functions accordance with Business Requirements for loading data into database tables.
- Optimized lot of SQL statements and PL/SQL blocks by analyzing the execute plans of SQL statement, SQL queries, stored procedures for performance improvement.
- Refreshed Schema in DEV environment. As well as adding Meta data information to the database.
- Created PL/SQL stored procedures, functions and packages to process the data according the requirement.
- Created Database Deployment instruction and deploy the code on production sever.
- Troubleshoot performance issues and bugs within packages, forms, and reports using dbms output, Forms debugger, explain plan.
- Written scripts to monitor tablespaces, file systems.
- Taking care of all alerts for space issues and user requests.
- Configuration of tnsnames.ora, listener.ora and sqlnet.ora files after upgrading databases.
- Performed database cloning from old system to new system.
- Used EXPORT/IMPORT for table level and full database de-fragmentation.
- Transported tablespaces between production and development databases.
- Running scripts to check the status of databases such as growing table sizes, extent allocation, free space, used space, fragmentation etc.
Environment: Oracle 11g, 10g, RHEL 5.x/6.x, CentOS, IBM-AIX, RHEL Advanced Server/Enterprise 2.1/3.0, OEM(Grid-Control), PL/SQL, RMAN, AWR, ADDM, PL/SQL, SQL Developer, WinSCP.
Confidentia, Holland, MI
Jr. Oracle DBA
Responsibilities:
- Installation, configuration and maintenance of Oracle 10g/11g databases.
- Installation, configuration and maintenance of 11.2.0.3 Oracle Data Guard as a high availability solution.
- Installing and configuring physical standby database using RMAN duplicate from active database on RHEL 6.3.
- Possess strong RHEL and Solaris skills.
- Applying one off patches using OPATCH utility.
- Creating and managing application schemas with appropriate table spaces and Indexes.
- Rebuilding Indexes and gather statistics on tables on different databases on a regular basis to gain database performance using DBMS STATS package
- Manage users, privileges and profiles, schemas using Oracle Grid Manager, Oracle Enterprise Manager (OEM) and SQL.
- Refreshing application schemas using data pump export/import
- Tuning the Databases for optimization using AWR, ASH, ADDM, STATSPACK, Explain Plans and TKPROF, Estimating Table & Index Size.
- Used RMAN to cloned and duplicated databases.
- Migrated databases from Windows to Linux using transportable tablespaces.
- Oracle 10g & 11g RAC, ASM, Data Guard (Physical, Logical standby), Enterprise Manager (EM) Grid Control, RMAN, Installation, Upgrades, Migrations, Performance Tuning Recent Experience.
- Creating and managing application schemas with appropriate table spaces and Indexes,
- Create public and private database links.
Environment: Oracle 11g/10g, SUSE 9.x, HP-UX, OEM grid control, TOAD, Data Pump, RMAN, AWR, ASM
Confidential
Technical Analyst
Responsibilities:
- Involved in gathering requirement, Analysis, Design.
- Created database objects including tables, views, synonyms, sequences, constraints, indexes.
- Created Pl/SQL Stored Procedures, Functions, Packages, Triggers, Cursors.
- Prepared migration documents & other documentations. Monitored db performance via STATSPACK.
- Participated in design reviews for upcoming application enhancements.
- Performed data extracts/loads in the testing environment using SQL*Loader.
- Assisted developers to troubleshoot SQL and PL/SQL code and increase the efficiency of execution.
- Created daily, weekly, and monthly DBA checklists for each environment.
- Documented database/server configuration for production, test, and development databases.
- Setup Crontab jobs to automate the routine tasks.
Environment: Oracle 9i, SQL*Plus, Pl/SQL, TOAD, SQL*Loader, SQL*PLUS, UNIX, VSS, OEM, Stats pack, QC
