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Member Since: 25.11.2022

Oracle Database Administrator

Score
100%
Experience:
35 y
Score
100%
Experience:
35 y
Location:
2768 Glenwood
Last update:
25.11.2022
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Available
Onsite hourly: 0 €
Remote hourly: N/A
German: Basic knowledge
English: Intermediate
Europe
Curious, Cautious, Confident and Committed to fast product development with emphasis on database stability and combined with strong skills to produce positive results in an efficient and effective manner. Also possesses the skills to adapt to any environment quickly at any point of the project cycle. As an individual, I am a very motivated and disciplined person, extremely eager to prove my potential. I enjoy collaborating with like-minded and talented individuals, and I am happy both to assist and provide valuable support, but also to take initiative and adopt a responsible role, should the occasion and the need arise, always bearing in mind the overall goal and ensuring the most optimal result for the task at hand.
ORACLE 10g/11g DB Oracle ORACLE RAC
SQL queries database tuning Oracle WebLogic Server Oracle 7 Sun Solaris databases OLAP 12c disaster recovery Oracle 8i Oracle Linux banking software Real Application Clusters 9i backups UNIX shell scripts Windows NT Server database administration WebLogic Server Grid Control shell scripting ZENITH Fedora Oracle database SQL scripts data access Korn Oracle Enterprise Manager SUSE IBM AIX Computer Science servers RedHat MS SQL MS SQL Server database design Oracle Databases MySQL OCFS2 Exadata Unix Shell HP-UX Data Guard Windows Operating System IT projects shell programming Oracle 9i database performance scripting Database Administrator Oracle UNIX shell scripts database security SQL tuning Solaris PL/SQL UNIX System SQL SCADA Oracle 10g/11g AIX Application Software Virtual machines database designs Windows server Database Analyst HP UNIX performance tuning Programming Linux RMAN Linux Operating System high availability database systems Windows RHEL Web Services RedHat Linux Database backups Oracle database administration Oracle 8 stored procedures Oracle RAC UNIX Operating System Linux OS Cassandra OLTP Mobile Network database server Oracle 10g Oracle Data Guard data centres MS-SQL JavaScript Solaris Operating System web server Java applications SQL*PLUS WebLogic HTML failover database XML
04.07.2022 — Now
Datacom Systems Ltd
IT
Oracle Database Engineer
Perform core DBA activities and Support various clients.
01.01.2007 — 05.11.2020
SYDNEY WATER
UTILITY
Oracle/SCADA Database Administrator
Performed CORE DBA tasks, configured and installed Oracle/SCADA database (>10TB) in multi-site complex (Single Instance, RAC and Data Guard) and large environment running 140 instances, to meet all functional, performance and quality objectives. Took the leading initiative to gather our client requirements and implemented the work process solutions, database backup and recovery solutions and database operation, trouble-shooting and planning with quality objectives in mission critical databases (10g/11g). Trouble-shoot the problems of Oracle database as per ITIL procedure. Installed and implemented RAC and Data Guard database. Enhanced database performance, tested and performed backup and recovery procedures on various disaster scenarios. Ensured technical and functional designs of the database and application programs meet business requirements. Responsibility (Verantwortung): ? Installed and configured of Oracle server (RAC/Data Guard/ASM/Grid Control/Data Pump/RMAN) on 11g on Solaris/Linux/Windows OS. Designed and implemented the new mission critical engineering application projects of IICATS and performed migration of data from old SCADA within the time frame on Solaris/Linux OS on production, development and test servers running Oracle 10g/11g Database. Installed and configured Oracle Application Software, Oracle WebLogic Server, Forms and Reports. Prepared technical documentation. ? Responsible for installation, upgrades, patches, database tuning, cloning. Duties included database creation, SQL tuning, backup/recovery, general troubleshooting, script development and documentation. ? Responsible for Critical resource in Database team that worked on migrating ORACLE 12c, 11g, 10g, 9i on a high-profile and large scale oracle databases to different data centres on heterogeneous operating systems. ? Performed installation/upgrades/cloning/Migration of oracle software and related products. Resolving Oracle database performance issues by analysing Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitoring (ADDM), Active Session History (ASH) reports. Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Tuning SQL Statements by Creating SQL profiles, Restructuring SQL statements, creating materialized views, refreshing optimizer statistics, Managing SQL Profiles, Managing SQL Plan Baselines etc. ? To Monitor, performance analysis as well as permanent improvement of current systems and their performance. Collaborate and improve valid service-level agreements and processes. Creation and development of emergency concepts and operating manuals. To ensure recovery management in accordance with the Business Continuity Plan. To answer all technical questions in the area of databases and database infrastructure. ? Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Performed the database's migrations and upgrades from !IX/Solaris to RedHat Linux platforms as a cost-effective measure. ? Designed and developed database infrastructure and identified and resolved technical issues of database problems along with development team. Improved the process and business requirement for IICATS engineering applications by contributing viable solution. ? Responsible for Installation, Configuration, Tuning and troubleshooting of WebLogic Server and migration of applications from WebLogic 11g to 12C. ? Developed. Maintained and implemented UNIX shell scripts, PL/SQL scripts and SQL scripts to carry out routine checks on databases. This includes performance analysis, checking whether all databases are running, listener is running, Unix error messages, disk space availability, segments with greater than 10 extents, segments nearing max extents, checking for errors in alert logs and trace files, etc. to avoid any unnecessary downtime. Environment (Umwelt): Oracle 9i/10g/11g/12c, Windows/Linux, Solaris, Linux RHEL 6, 5.x, RMAN, OEM Grid Control 11g/12c Oracle RAC 11g/12c, Weblogic10g/11g/12c/, OEL Virtual machines, Oracle GoldenGate 11gR2, Oracle Data Guard 11gR2, IBM AIX 6.0, RHEL 5.5, Solaris, HP-UX, OEM 12c/13c.
01.03.2006 — 31.01.2007
DEAKIN UNIVERSITY
Oracle Database Administrator
Perform CORE DBA tasks. Managed Oracle database (>3TB) assignments (Single and RAC) running 100 instances, for University clients and troubleshooting of database problems as per ITIL procedure. Managed student database and mission critical applications of three campus and able to bring the upgraded database well before the closing time of the application. Enhanced database performance, performed restores, implemented backup and recovery procedures, handled performance tuning and conducted regular system backups. Ensured technical and functional designs of the application and database meet Universities requirements for new student's enrolments. Responsibility (Verantwortung): ? Installed and configured of Oracle 8i/9i/10g server and creation of databases (RAC/EM/GC) on Solaris/Linux Operating System. Installed and configured web server logic. ? Responsible for installation, upgrades, patches, database tuning, cloning. Duties included database creation, SQL tuning, backup/recovery, general troubleshooting, script development and documentation. ? Installed/Configured/Administered Oracle Enterprise Manager Grid Control (10g). Applied interim patches to Oracle using Installer and Opatch utility. ? Tuning SQL Statements by Creating SQL profiles, Restructuring SQL statements, creating materialized views, refreshing optimizer statistics, Managing SQL Profiles, Managing SQL Plan Baselines etc. ? Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Installed Oracle 10g on Linux/Solaris OS. Performed migration of Oracle 9i from AIX to Linux ? Performed Recovery on Database for various scenarios of disaster or failure. ? Installed and Implemented Students Applications on Oracle 9iAS on Solaris and Linux. ? Refreshed development/test database from production using Export/Import and RMAN. This is done so that the latest data is available in the development/test database. ? Developed UNIX shell scripts, SQL scripts and Complex SQL queries on OLAP to carry out routine checks on databases. This includes checking whether all databases are running, listener is running, Unix error messages, disk space availability, segments with greater than 10 extents, segments nearing max extents, checking for errors in alert logs and trace files, etc. to avoid any unnecessary downtime. Prepared technical documentation Environment (Umwelt): Oracle 8i/9i/10g, Oracle RAC 10g, Oracle RMAN, Linux RHEL 5.x,4.x, OEM 10g, Linux, Solaris, Oracle 9iAS.
01.02.2005 — 31.03.2005
HUBNET GLOBAL
Oracle Database Administrator
Provided DBA Services and improved the performance on Mobile Network Portability (MNP) for Hutchison Telecom. They are a Tele-Communication company that works with Oracle on a highly OLTP environment. Implemented Disaster Recovery solutions, Tuning Code, Resolved bottleneck problems, Installed Patches, Backup and Recovery (RMAN and Shell Scripts) over highly volume Terabyte Databases. Implemented and configured Oracle RAC and help them to migrate from Oracle 8i to Oracle 9i. Responsibility (Verantwortung): ? Created of database for large MNP (Mobile Network Portability) application on Solaris Operating System. Prepared technical documentation ? Data extracted from various sources, transformed and loaded into the target Oracle database. ? Opening and tracking of SR ticket on Oracle via Metalink for Production Server and escalating. Preparing and Submitting reports and status of the ticket to the management. ? Planned the location of data and created tablespaces, index and rollback tablespaces redo log files and control files in adherence to the Optimal Flex Architecture. ? Implemented database security. Created and assigned appropriate roles and privileges to users depending on the user activity. ? Performed Database tuning to improve performance of loads and achieved the response time. Optimised database for stability, speed and high availability. ? Made structural changes to the database objects. ? Re-sized database objects for effective space management and optimal performance. ? Implemented Database backups and recovery (RMAN). Environment (Umwelt): Oracle 8i/9i, Solaris, OEM 11g, Sun Solaris
01.04.1997 — 30.09.2004
MINISTRY OF EDUCATION
UNIX System/Oracle Database Administrator
Performed CORE DBA tasks and configured/installed Oracle 7, 8, and 8i database on Tru64 Unix environments, performance tuning, Schema creation, maintenance, and troubleshooting. Also Administered, maintained, developed and implemented policies and procedures for ensuring the security and integrity of the Ministry of Education database. Implemented data models and database designs, data access and table maintenance codes; resolved database performance issues, database capacity issues, backups, replication, and other distributed data issues over a highly volume Database. Responsibility (Verantwortung): ? Installed of Oracle 7.3/8.0/8i database server on Digital Unix/Windows NT Server and created new databases. Upgraded Oracle 8 to Oracle 8i on Tru64 Cluster. ? Carried out upgrade of databases using the Oracle Installer. ? Refreshed development database from production using RMAN. ? Planned the location of data and created tablespaces, index and rollback tablespaces redo log files and control files in adherence to the Oracle recommended standard. ? Reorganised the Database to meet standards and improve and resolved performance issues. ? Implemented database security by assigning appropriate roles and privileges depending on the user activity. ? Performed SQL tuning by using Explain Plan, Tkprof, Trace facility and Statpack. ? Sizing database objects for effective space management and optimal performance. ? Capacity planning for changes in the size of databases due to business growth. ? Installed and administrated MS-SQL Server 2000. ? Database backup and recovery. Used hot and cold backups. Involved in development of scripts to automate backup and recovery procedures for development databases. ? Monitoring rollback segments. Adopting proactive maintenance strategies to curb extensive shrinking and wrapping of rollback segments. Migrated Oracle 7.3 to Oracle 8i Environment (Umwelt): Oracle 8/8i/9i, Oracle RMAN, Tru64 UNIX.
01.10.1995 — 30.04.1997
KARNATAKA BANK LTD
System/Database Analyst
environments, performance tuning, Schema creation, maintenance, and troubleshooting. Also Administered, maintained, developed and implemented policies and procedures for ensuring the security and integrity of the Bank for all the branches in Bombay, India. Responsibility (Leistung): ? Installed of Oracle 7.3.4 database server on HP-UX and created a new target database. ? Interconnected the servers of the different branches of the bank successfully. ? Implemented database security and created and assigned appropriate roles and privileges as required by the application. Enforced to perform day end operation and prepare the database for next day business transactions to avoid any fraud and discrepancy. ? Implemented successfully all the banking software, application and the changes in the database design and modified stored procedures. ? Re-sized database objects for effective space management and optimal performance. ? Implemented Database backups and recovery. Developed scripts for cold backup. Environment (Umwelt): Oracle 7, HP UNIX.
01.09.1993 — 31.08.1995
ZENITH COMPUTERS LTD
Sr. Software Support Engineer
Support UNIX and Novel LAN Operating System for various clients. Enhance system performance, perform restores, implement recovery procedures, handle performance tuning and conduct regular system backups.
01.08.1989 — 31.07.1993
DCM DATA PRODUCTS
System Engineer
Support and install UNIX Operating System for various clients. Enhance system performance, perform restores, implement recovery procedures and conduct regular system backups.
SYDNEY WATER
Oracle/SCADA Database Administrator
Performed CORE DBA tasks, configured and installed Oracle/SCADA database (>10TB) in multi-site complex (Single Instance, RAC and Data Guard) and large environment running 140 instances, to meet all functional, performance and quality objectives. Took the leading initiative to gather our client requirements and implemented the work process solutions, database backup and recovery solutions and database operation, trouble-shooting and planning with quality objectives in mission critical databases (10g/11g). Trouble-shoot the problems of Oracle database as per ITIL procedure. Installed and implemented RAC and Data Guard database. Enhanced database performance, tested and performed backup and recovery procedures on various disaster scenarios. Ensured technical and functional designs of the database and application programs meet business requirements. Responsibility (Verantwortung): ? Installed and configured of Oracle server (RAC/Data Guard/ASM/Grid Control/Data Pump/RMAN) on 11g on Solaris/Linux/Windows OS. Designed and implemented the new mission critical engineering application projects of IICATS and performed migration of data from old SCADA within the time frame on Solaris/Linux OS on production, development and test servers running Oracle 10g/11g Database. Installed and configured Oracle Application Software, Oracle WebLogic Server, Forms and Reports. Prepared technical documentation. ? Responsible for installation, upgrades, patches, database tuning, cloning. Duties included database creation, SQL tuning, backup/recovery, general troubleshooting, script development and documentation. ? Responsible for Critical resource in Database team that worked on migrating ORACLE 12c, 11g, 10g, 9i on a high-profile and large scale oracle databases to different data centres on heterogeneous operating systems. ? Performed installation/upgrades/cloning/Migration of oracle software and related products. Resolving Oracle database performance issues by analysing Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitoring (ADDM), Active Session History (ASH) reports. Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Tuning SQL Statements by Creating SQL profiles, Restructuring SQL statements, creating materialized views, refreshing optimizer statistics, Managing SQL Profiles, Managing SQL Plan Baselines etc. ? To Monitor, performance analysis as well as permanent improvement of current systems and their performance. Collaborate and improve valid service-level agreements and processes. Creation and development of emergency concepts and operating manuals. To ensure recovery management in accordance with the Business Continuity Plan. To answer all technical questions in the area of databases and database infrastructure. ? Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Performed the database's migrations and upgrades from !IX/Solaris to RedHat Linux platforms as a cost-effective measure. ? Designed and developed database infrastructure and identified and resolved technical issues of database problems along with development team. Improved the process and business requirement for IICATS engineering applications by contributing viable solution. ? Responsible for Installation, Configuration, Tuning and troubleshooting of WebLogic Server and migration of applications from WebLogic 11g to 12C. ? Developed. Maintained and implemented UNIX shell scripts, PL/SQL scripts and SQL scripts to carry out routine checks on databases. This includes performance analysis, checking whether all databases are running, listener is running, Unix error messages, disk space availability, segments with greater than 10 extents, segments nearing max extents, checking for errors in alert logs and trace files, etc. to avoid any unnecessary downtime. Environment (Umwelt): Oracle 9i/10g/11g/12c, Windows/Linux, Solaris, Linux RHEL 6, 5.x, RMAN, OEM Grid Control 11g/12c Oracle RAC 11g/12c, Weblogic10g/11g/12c/, OEL Virtual machines, Oracle GoldenGate 11gR2, Oracle Data Guard 11gR2, IBM AIX 6.0, RHEL 5.5, Solaris, HP-UX, OEM 12c/13c.
DEAKIN UNIVERSITY
Oracle Database Administrator
Perform CORE DBA tasks. Managed Oracle database (>3TB) assignments (Single and RAC) running 100 instances, for University clients and troubleshooting of database problems as per ITIL procedure. Managed student database and mission critical applications of three campus and able to bring the upgraded database well before the closing time of the application. Enhanced database performance, performed restores, implemented backup and recovery procedures, handled performance tuning and conducted regular system backups. Ensured technical and functional designs of the application and database meet Universities requirements for new student's enrolments. Responsibility (Verantwortung): ? Installed and configured of Oracle 8i/9i/10g server and creation of databases (RAC/EM/GC) on Solaris/Linux Operating System. Installed and configured web server logic. ? Responsible for installation, upgrades, patches, database tuning, cloning. Duties included database creation, SQL tuning, backup/recovery, general troubleshooting, script development and documentation. ? Installed/Configured/Administered Oracle Enterprise Manager Grid Control (10g). Applied interim patches to Oracle using Installer and Opatch utility. ? Tuning SQL Statements by Creating SQL profiles, Restructuring SQL statements, creating materialized views, refreshing optimizer statistics, Managing SQL Profiles, Managing SQL Plan Baselines etc. ? Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Installed Oracle 10g on Linux/Solaris OS. Performed migration of Oracle 9i from AIX to Linux ? Performed Recovery on Database for various scenarios of disaster or failure. ? Installed and Implemented Students Applications on Oracle 9iAS on Solaris and Linux. ? Refreshed development/test database from production using Export/Import and RMAN. This is done so that the latest data is available in the development/test database. ? Developed UNIX shell scripts, SQL scripts and Complex SQL queries on OLAP to carry out routine checks on databases. This includes checking whether all databases are running, listener is running, Unix error messages, disk space availability, segments with greater than 10 extents, segments nearing max extents, checking for errors in alert logs and trace files, etc. to avoid any unnecessary downtime. Prepared technical documentation Environment (Umwelt): Oracle 8i/9i/10g, Oracle RAC 10g, Oracle RMAN, Linux RHEL 5.x,4.x, OEM 10g, Linux, Solaris, Oracle 9iAS.
HUBNET GLOBAL
Oracle Database Administrator
Provided DBA Services and improved the performance on Mobile Network Portability (MNP) for Hutchison Telecom. They are a Tele-Communication company that works with Oracle on a highly OLTP environment. Implemented Disaster Recovery solutions, Tuning Code, Resolved bottleneck problems, Installed Patches, Backup and Recovery (RMAN and Shell Scripts) over highly volume Terabyte Databases. Implemented and configured Oracle RAC and help them to migrate from Oracle 8i to Oracle 9i. Responsibility (Verantwortung): ? Created of database for large MNP (Mobile Network Portability) application on Solaris Operating System. Prepared technical documentation ? Data extracted from various sources, transformed and loaded into the target Oracle database. ? Opening and tracking of SR ticket on Oracle via Metalink for Production Server and escalating. Preparing and Submitting reports and status of the ticket to the management. ? Planned the location of data and created tablespaces, index and rollback tablespaces redo log files and control files in adherence to the Optimal Flex Architecture. ? Implemented database security. Created and assigned appropriate roles and privileges to users depending on the user activity. ? Performed Database tuning to improve performance of loads and achieved the response time. Optimised database for stability, speed and high availability. ? Made structural changes to the database objects. ? Re-sized database objects for effective space management and optimal performance. ? Implemented Database backups and recovery (RMAN). Environment (Umwelt): Oracle 8i/9i, Solaris, OEM 11g, Sun Solaris
MINISTRY OF EDUCATION
UNIX System/Oracle Database Administrator
Performed CORE DBA tasks and configured/installed Oracle 7, 8, and 8i database on Tru64 Unix environments, performance tuning, Schema creation, maintenance, and troubleshooting. Also Administered, maintained, developed and implemented policies and procedures for ensuring the security and integrity of the Ministry of Education database. Implemented data models and database designs, data access and table maintenance codes; resolved database performance issues, database capacity issues, backups, replication, and other distributed data issues over a highly volume Database. Responsibility (Verantwortung): ? Installed of Oracle 7.3/8.0/8i database server on Digital Unix/Windows NT Server and created new databases. Upgraded Oracle 8 to Oracle 8i on Tru64 Cluster. ? Carried out upgrade of databases using the Oracle Installer. ? Refreshed development database from production using RMAN. ? Planned the location of data and created tablespaces, index and rollback tablespaces redo log files and control files in adherence to the Oracle recommended standard. ? Reorganised the Database to meet standards and improve and resolved performance issues. ? Implemented database security by assigning appropriate roles and privileges depending on the user activity. ? Performed SQL tuning by using Explain Plan, Tkprof, Trace facility and Statpack. ? Sizing database objects for effective space management and optimal performance. ? Capacity planning for changes in the size of databases due to business growth. ? Installed and administrated MS-SQL Server 2000. ? Database backup and recovery. Used hot and cold backups. Involved in development of scripts to automate backup and recovery procedures for development databases. ? Monitoring rollback segments. Adopting proactive maintenance strategies to curb extensive shrinking and wrapping of rollback segments. Migrated Oracle 7.3 to Oracle 8i Environment (Umwelt): Oracle 8/8i/9i, Oracle RMAN, Tru64 UNIX.
KARNATAKA BANK LTD
System/Database Analyst
environments, performance tuning, Schema creation, maintenance, and troubleshooting. Also Administered, maintained, developed and implemented policies and procedures for ensuring the security and integrity of the Bank for all the branches in Bombay, India. Responsibility (Leistung): ? Installed of Oracle 7.3.4 database server on HP-UX and created a new target database. ? Interconnected the servers of the different branches of the bank successfully. ? Implemented database security and created and assigned appropriate roles and privileges as required by the application. Enforced to perform day end operation and prepare the database for next day business transactions to avoid any fraud and discrepancy. ? Implemented successfully all the banking software, application and the changes in the database design and modified stored procedures. ? Re-sized database objects for effective space management and optimal performance. ? Implemented Database backups and recovery. Developed scripts for cold backup. Environment (Umwelt): Oracle 7, HP UNIX.
ZENITH COMPUTERS LTD
Sr. Software Support Engineer
Support UNIX and Novel LAN Operating System for various clients. Enhance system performance, perform restores, implement recovery procedures, handle performance tuning and conduct regular system backups.
DCM DATA PRODUCTS
System Engineer
Support and install UNIX Operating System for various clients. Enhance system performance, perform restores, implement recovery procedures and conduct regular system backups.

Description

Curious, Cautious, Confident and Committed to fast product development with emphasis on database stability and combined with strong skills to produce positive results in an efficient and effective manner. Also possesses the skills to adapt to any environment quickly at any point of the project cycle. As an individual, I am a very motivated and disciplined person, extremely eager to prove my potential. I enjoy collaborating with like-minded and talented individuals, and I am happy both to assist and provide valuable support, but also to take initiative and adopt a responsible role, should the occasion and the need arise, always bearing in mind the overall goal and ensuring the most optimal result for the task at hand.

Main Skills

ORACLE 10g/11g DB Oracle ORACLE RAC

Other Skills

SQL queries database tuning Oracle WebLogic Server Oracle 7 Sun Solaris databases OLAP 12c disaster recovery Oracle 8i Oracle Linux banking software Real Application Clusters 9i backups UNIX shell scripts Windows NT Server database administration WebLogic Server Grid Control shell scripting ZENITH Fedora Oracle database SQL scripts data access Korn Oracle Enterprise Manager SUSE IBM AIX Computer Science servers RedHat MS SQL MS SQL Server database design Oracle Databases MySQL OCFS2 Exadata Unix Shell HP-UX Data Guard Windows Operating System IT projects shell programming Oracle 9i database performance scripting Database Administrator Oracle UNIX shell scripts database security SQL tuning Solaris PL/SQL UNIX System SQL SCADA Oracle 10g/11g AIX Application Software Virtual machines database designs Windows server Database Analyst HP UNIX performance tuning Programming Linux RMAN Linux Operating System high availability database systems Windows RHEL Web Services RedHat Linux Database backups Oracle database administration Oracle 8 stored procedures Oracle RAC UNIX Operating System Linux OS Cassandra OLTP Mobile Network database server Oracle 10g Oracle Data Guard data centres MS-SQL JavaScript Solaris Operating System web server Java applications SQL*PLUS WebLogic HTML failover database XML

Work & Experience

04.07.2022 — Now
Datacom Systems Ltd
IT
Oracle Database Engineer
Perform core DBA activities and Support various clients.
01.01.2007 — 05.11.2020
SYDNEY WATER
UTILITY
Oracle/SCADA Database Administrator
Performed CORE DBA tasks, configured and installed Oracle/SCADA database (>10TB) in multi-site complex (Single Instance, RAC and Data Guard) and large environment running 140 instances, to meet all functional, performance and quality objectives. Took the leading initiative to gather our client requirements and implemented the work process solutions, database backup and recovery solutions and database operation, trouble-shooting and planning with quality objectives in mission critical databases (10g/11g). Trouble-shoot the problems of Oracle database as per ITIL procedure. Installed and implemented RAC and Data Guard database. Enhanced database performance, tested and performed backup and recovery procedures on various disaster scenarios. Ensured technical and functional designs of the database and application programs meet business requirements. Responsibility (Verantwortung): ? Installed and configured of Oracle server (RAC/Data Guard/ASM/Grid Control/Data Pump/RMAN) on 11g on Solaris/Linux/Windows OS. Designed and implemented the new mission critical engineering application projects of IICATS and performed migration of data from old SCADA within the time frame on Solaris/Linux OS on production, development and test servers running Oracle 10g/11g Database. Installed and configured Oracle Application Software, Oracle WebLogic Server, Forms and Reports. Prepared technical documentation. ? Responsible for installation, upgrades, patches, database tuning, cloning. Duties included database creation, SQL tuning, backup/recovery, general troubleshooting, script development and documentation. ? Responsible for Critical resource in Database team that worked on migrating ORACLE 12c, 11g, 10g, 9i on a high-profile and large scale oracle databases to different data centres on heterogeneous operating systems. ? Performed installation/upgrades/cloning/Migration of oracle software and related products. Resolving Oracle database performance issues by analysing Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitoring (ADDM), Active Session History (ASH) reports. Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Tuning SQL Statements by Creating SQL profiles, Restructuring SQL statements, creating materialized views, refreshing optimizer statistics, Managing SQL Profiles, Managing SQL Plan Baselines etc. ? To Monitor, performance analysis as well as permanent improvement of current systems and their performance. Collaborate and improve valid service-level agreements and processes. Creation and development of emergency concepts and operating manuals. To ensure recovery management in accordance with the Business Continuity Plan. To answer all technical questions in the area of databases and database infrastructure. ? Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Performed the database's migrations and upgrades from !IX/Solaris to RedHat Linux platforms as a cost-effective measure. ? Designed and developed database infrastructure and identified and resolved technical issues of database problems along with development team. Improved the process and business requirement for IICATS engineering applications by contributing viable solution. ? Responsible for Installation, Configuration, Tuning and troubleshooting of WebLogic Server and migration of applications from WebLogic 11g to 12C. ? Developed. Maintained and implemented UNIX shell scripts, PL/SQL scripts and SQL scripts to carry out routine checks on databases. This includes performance analysis, checking whether all databases are running, listener is running, Unix error messages, disk space availability, segments with greater than 10 extents, segments nearing max extents, checking for errors in alert logs and trace files, etc. to avoid any unnecessary downtime. Environment (Umwelt): Oracle 9i/10g/11g/12c, Windows/Linux, Solaris, Linux RHEL 6, 5.x, RMAN, OEM Grid Control 11g/12c Oracle RAC 11g/12c, Weblogic10g/11g/12c/, OEL Virtual machines, Oracle GoldenGate 11gR2, Oracle Data Guard 11gR2, IBM AIX 6.0, RHEL 5.5, Solaris, HP-UX, OEM 12c/13c.
01.03.2006 — 31.01.2007
DEAKIN UNIVERSITY
Oracle Database Administrator
Perform CORE DBA tasks. Managed Oracle database (>3TB) assignments (Single and RAC) running 100 instances, for University clients and troubleshooting of database problems as per ITIL procedure. Managed student database and mission critical applications of three campus and able to bring the upgraded database well before the closing time of the application. Enhanced database performance, performed restores, implemented backup and recovery procedures, handled performance tuning and conducted regular system backups. Ensured technical and functional designs of the application and database meet Universities requirements for new student's enrolments. Responsibility (Verantwortung): ? Installed and configured of Oracle 8i/9i/10g server and creation of databases (RAC/EM/GC) on Solaris/Linux Operating System. Installed and configured web server logic. ? Responsible for installation, upgrades, patches, database tuning, cloning. Duties included database creation, SQL tuning, backup/recovery, general troubleshooting, script development and documentation. ? Installed/Configured/Administered Oracle Enterprise Manager Grid Control (10g). Applied interim patches to Oracle using Installer and Opatch utility. ? Tuning SQL Statements by Creating SQL profiles, Restructuring SQL statements, creating materialized views, refreshing optimizer statistics, Managing SQL Profiles, Managing SQL Plan Baselines etc. ? Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Installed Oracle 10g on Linux/Solaris OS. Performed migration of Oracle 9i from AIX to Linux ? Performed Recovery on Database for various scenarios of disaster or failure. ? Installed and Implemented Students Applications on Oracle 9iAS on Solaris and Linux. ? Refreshed development/test database from production using Export/Import and RMAN. This is done so that the latest data is available in the development/test database. ? Developed UNIX shell scripts, SQL scripts and Complex SQL queries on OLAP to carry out routine checks on databases. This includes checking whether all databases are running, listener is running, Unix error messages, disk space availability, segments with greater than 10 extents, segments nearing max extents, checking for errors in alert logs and trace files, etc. to avoid any unnecessary downtime. Prepared technical documentation Environment (Umwelt): Oracle 8i/9i/10g, Oracle RAC 10g, Oracle RMAN, Linux RHEL 5.x,4.x, OEM 10g, Linux, Solaris, Oracle 9iAS.
01.02.2005 — 31.03.2005
HUBNET GLOBAL
Oracle Database Administrator
Provided DBA Services and improved the performance on Mobile Network Portability (MNP) for Hutchison Telecom. They are a Tele-Communication company that works with Oracle on a highly OLTP environment. Implemented Disaster Recovery solutions, Tuning Code, Resolved bottleneck problems, Installed Patches, Backup and Recovery (RMAN and Shell Scripts) over highly volume Terabyte Databases. Implemented and configured Oracle RAC and help them to migrate from Oracle 8i to Oracle 9i. Responsibility (Verantwortung): ? Created of database for large MNP (Mobile Network Portability) application on Solaris Operating System. Prepared technical documentation ? Data extracted from various sources, transformed and loaded into the target Oracle database. ? Opening and tracking of SR ticket on Oracle via Metalink for Production Server and escalating. Preparing and Submitting reports and status of the ticket to the management. ? Planned the location of data and created tablespaces, index and rollback tablespaces redo log files and control files in adherence to the Optimal Flex Architecture. ? Implemented database security. Created and assigned appropriate roles and privileges to users depending on the user activity. ? Performed Database tuning to improve performance of loads and achieved the response time. Optimised database for stability, speed and high availability. ? Made structural changes to the database objects. ? Re-sized database objects for effective space management and optimal performance. ? Implemented Database backups and recovery (RMAN). Environment (Umwelt): Oracle 8i/9i, Solaris, OEM 11g, Sun Solaris
01.04.1997 — 30.09.2004
MINISTRY OF EDUCATION
UNIX System/Oracle Database Administrator
Performed CORE DBA tasks and configured/installed Oracle 7, 8, and 8i database on Tru64 Unix environments, performance tuning, Schema creation, maintenance, and troubleshooting. Also Administered, maintained, developed and implemented policies and procedures for ensuring the security and integrity of the Ministry of Education database. Implemented data models and database designs, data access and table maintenance codes; resolved database performance issues, database capacity issues, backups, replication, and other distributed data issues over a highly volume Database. Responsibility (Verantwortung): ? Installed of Oracle 7.3/8.0/8i database server on Digital Unix/Windows NT Server and created new databases. Upgraded Oracle 8 to Oracle 8i on Tru64 Cluster. ? Carried out upgrade of databases using the Oracle Installer. ? Refreshed development database from production using RMAN. ? Planned the location of data and created tablespaces, index and rollback tablespaces redo log files and control files in adherence to the Oracle recommended standard. ? Reorganised the Database to meet standards and improve and resolved performance issues. ? Implemented database security by assigning appropriate roles and privileges depending on the user activity. ? Performed SQL tuning by using Explain Plan, Tkprof, Trace facility and Statpack. ? Sizing database objects for effective space management and optimal performance. ? Capacity planning for changes in the size of databases due to business growth. ? Installed and administrated MS-SQL Server 2000. ? Database backup and recovery. Used hot and cold backups. Involved in development of scripts to automate backup and recovery procedures for development databases. ? Monitoring rollback segments. Adopting proactive maintenance strategies to curb extensive shrinking and wrapping of rollback segments. Migrated Oracle 7.3 to Oracle 8i Environment (Umwelt): Oracle 8/8i/9i, Oracle RMAN, Tru64 UNIX.
01.10.1995 — 30.04.1997
KARNATAKA BANK LTD
System/Database Analyst
environments, performance tuning, Schema creation, maintenance, and troubleshooting. Also Administered, maintained, developed and implemented policies and procedures for ensuring the security and integrity of the Bank for all the branches in Bombay, India. Responsibility (Leistung): ? Installed of Oracle 7.3.4 database server on HP-UX and created a new target database. ? Interconnected the servers of the different branches of the bank successfully. ? Implemented database security and created and assigned appropriate roles and privileges as required by the application. Enforced to perform day end operation and prepare the database for next day business transactions to avoid any fraud and discrepancy. ? Implemented successfully all the banking software, application and the changes in the database design and modified stored procedures. ? Re-sized database objects for effective space management and optimal performance. ? Implemented Database backups and recovery. Developed scripts for cold backup. Environment (Umwelt): Oracle 7, HP UNIX.
01.09.1993 — 31.08.1995
ZENITH COMPUTERS LTD
Sr. Software Support Engineer
Support UNIX and Novel LAN Operating System for various clients. Enhance system performance, perform restores, implement recovery procedures, handle performance tuning and conduct regular system backups.
01.08.1989 — 31.07.1993
DCM DATA PRODUCTS
System Engineer
Support and install UNIX Operating System for various clients. Enhance system performance, perform restores, implement recovery procedures and conduct regular system backups.
SYDNEY WATER
Oracle/SCADA Database Administrator
Performed CORE DBA tasks, configured and installed Oracle/SCADA database (>10TB) in multi-site complex (Single Instance, RAC and Data Guard) and large environment running 140 instances, to meet all functional, performance and quality objectives. Took the leading initiative to gather our client requirements and implemented the work process solutions, database backup and recovery solutions and database operation, trouble-shooting and planning with quality objectives in mission critical databases (10g/11g). Trouble-shoot the problems of Oracle database as per ITIL procedure. Installed and implemented RAC and Data Guard database. Enhanced database performance, tested and performed backup and recovery procedures on various disaster scenarios. Ensured technical and functional designs of the database and application programs meet business requirements. Responsibility (Verantwortung): ? Installed and configured of Oracle server (RAC/Data Guard/ASM/Grid Control/Data Pump/RMAN) on 11g on Solaris/Linux/Windows OS. Designed and implemented the new mission critical engineering application projects of IICATS and performed migration of data from old SCADA within the time frame on Solaris/Linux OS on production, development and test servers running Oracle 10g/11g Database. Installed and configured Oracle Application Software, Oracle WebLogic Server, Forms and Reports. Prepared technical documentation. ? Responsible for installation, upgrades, patches, database tuning, cloning. Duties included database creation, SQL tuning, backup/recovery, general troubleshooting, script development and documentation. ? Responsible for Critical resource in Database team that worked on migrating ORACLE 12c, 11g, 10g, 9i on a high-profile and large scale oracle databases to different data centres on heterogeneous operating systems. ? Performed installation/upgrades/cloning/Migration of oracle software and related products. Resolving Oracle database performance issues by analysing Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitoring (ADDM), Active Session History (ASH) reports. Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Tuning SQL Statements by Creating SQL profiles, Restructuring SQL statements, creating materialized views, refreshing optimizer statistics, Managing SQL Profiles, Managing SQL Plan Baselines etc. ? To Monitor, performance analysis as well as permanent improvement of current systems and their performance. Collaborate and improve valid service-level agreements and processes. Creation and development of emergency concepts and operating manuals. To ensure recovery management in accordance with the Business Continuity Plan. To answer all technical questions in the area of databases and database infrastructure. ? Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Performed the database's migrations and upgrades from !IX/Solaris to RedHat Linux platforms as a cost-effective measure. ? Designed and developed database infrastructure and identified and resolved technical issues of database problems along with development team. Improved the process and business requirement for IICATS engineering applications by contributing viable solution. ? Responsible for Installation, Configuration, Tuning and troubleshooting of WebLogic Server and migration of applications from WebLogic 11g to 12C. ? Developed. Maintained and implemented UNIX shell scripts, PL/SQL scripts and SQL scripts to carry out routine checks on databases. This includes performance analysis, checking whether all databases are running, listener is running, Unix error messages, disk space availability, segments with greater than 10 extents, segments nearing max extents, checking for errors in alert logs and trace files, etc. to avoid any unnecessary downtime. Environment (Umwelt): Oracle 9i/10g/11g/12c, Windows/Linux, Solaris, Linux RHEL 6, 5.x, RMAN, OEM Grid Control 11g/12c Oracle RAC 11g/12c, Weblogic10g/11g/12c/, OEL Virtual machines, Oracle GoldenGate 11gR2, Oracle Data Guard 11gR2, IBM AIX 6.0, RHEL 5.5, Solaris, HP-UX, OEM 12c/13c.
DEAKIN UNIVERSITY
Oracle Database Administrator
Perform CORE DBA tasks. Managed Oracle database (>3TB) assignments (Single and RAC) running 100 instances, for University clients and troubleshooting of database problems as per ITIL procedure. Managed student database and mission critical applications of three campus and able to bring the upgraded database well before the closing time of the application. Enhanced database performance, performed restores, implemented backup and recovery procedures, handled performance tuning and conducted regular system backups. Ensured technical and functional designs of the application and database meet Universities requirements for new student's enrolments. Responsibility (Verantwortung): ? Installed and configured of Oracle 8i/9i/10g server and creation of databases (RAC/EM/GC) on Solaris/Linux Operating System. Installed and configured web server logic. ? Responsible for installation, upgrades, patches, database tuning, cloning. Duties included database creation, SQL tuning, backup/recovery, general troubleshooting, script development and documentation. ? Installed/Configured/Administered Oracle Enterprise Manager Grid Control (10g). Applied interim patches to Oracle using Installer and Opatch utility. ? Tuning SQL Statements by Creating SQL profiles, Restructuring SQL statements, creating materialized views, refreshing optimizer statistics, Managing SQL Profiles, Managing SQL Plan Baselines etc. ? Implemented capacity planning procedures, written and developed shell scripts to monitor growth procedures. ? Installed Oracle 10g on Linux/Solaris OS. Performed migration of Oracle 9i from AIX to Linux ? Performed Recovery on Database for various scenarios of disaster or failure. ? Installed and Implemented Students Applications on Oracle 9iAS on Solaris and Linux. ? Refreshed development/test database from production using Export/Import and RMAN. This is done so that the latest data is available in the development/test database. ? Developed UNIX shell scripts, SQL scripts and Complex SQL queries on OLAP to carry out routine checks on databases. This includes checking whether all databases are running, listener is running, Unix error messages, disk space availability, segments with greater than 10 extents, segments nearing max extents, checking for errors in alert logs and trace files, etc. to avoid any unnecessary downtime. Prepared technical documentation Environment (Umwelt): Oracle 8i/9i/10g, Oracle RAC 10g, Oracle RMAN, Linux RHEL 5.x,4.x, OEM 10g, Linux, Solaris, Oracle 9iAS.
HUBNET GLOBAL
Oracle Database Administrator
Provided DBA Services and improved the performance on Mobile Network Portability (MNP) for Hutchison Telecom. They are a Tele-Communication company that works with Oracle on a highly OLTP environment. Implemented Disaster Recovery solutions, Tuning Code, Resolved bottleneck problems, Installed Patches, Backup and Recovery (RMAN and Shell Scripts) over highly volume Terabyte Databases. Implemented and configured Oracle RAC and help them to migrate from Oracle 8i to Oracle 9i. Responsibility (Verantwortung): ? Created of database for large MNP (Mobile Network Portability) application on Solaris Operating System. Prepared technical documentation ? Data extracted from various sources, transformed and loaded into the target Oracle database. ? Opening and tracking of SR ticket on Oracle via Metalink for Production Server and escalating. Preparing and Submitting reports and status of the ticket to the management. ? Planned the location of data and created tablespaces, index and rollback tablespaces redo log files and control files in adherence to the Optimal Flex Architecture. ? Implemented database security. Created and assigned appropriate roles and privileges to users depending on the user activity. ? Performed Database tuning to improve performance of loads and achieved the response time. Optimised database for stability, speed and high availability. ? Made structural changes to the database objects. ? Re-sized database objects for effective space management and optimal performance. ? Implemented Database backups and recovery (RMAN). Environment (Umwelt): Oracle 8i/9i, Solaris, OEM 11g, Sun Solaris
MINISTRY OF EDUCATION
UNIX System/Oracle Database Administrator
Performed CORE DBA tasks and configured/installed Oracle 7, 8, and 8i database on Tru64 Unix environments, performance tuning, Schema creation, maintenance, and troubleshooting. Also Administered, maintained, developed and implemented policies and procedures for ensuring the security and integrity of the Ministry of Education database. Implemented data models and database designs, data access and table maintenance codes; resolved database performance issues, database capacity issues, backups, replication, and other distributed data issues over a highly volume Database. Responsibility (Verantwortung): ? Installed of Oracle 7.3/8.0/8i database server on Digital Unix/Windows NT Server and created new databases. Upgraded Oracle 8 to Oracle 8i on Tru64 Cluster. ? Carried out upgrade of databases using the Oracle Installer. ? Refreshed development database from production using RMAN. ? Planned the location of data and created tablespaces, index and rollback tablespaces redo log files and control files in adherence to the Oracle recommended standard. ? Reorganised the Database to meet standards and improve and resolved performance issues. ? Implemented database security by assigning appropriate roles and privileges depending on the user activity. ? Performed SQL tuning by using Explain Plan, Tkprof, Trace facility and Statpack. ? Sizing database objects for effective space management and optimal performance. ? Capacity planning for changes in the size of databases due to business growth. ? Installed and administrated MS-SQL Server 2000. ? Database backup and recovery. Used hot and cold backups. Involved in development of scripts to automate backup and recovery procedures for development databases. ? Monitoring rollback segments. Adopting proactive maintenance strategies to curb extensive shrinking and wrapping of rollback segments. Migrated Oracle 7.3 to Oracle 8i Environment (Umwelt): Oracle 8/8i/9i, Oracle RMAN, Tru64 UNIX.
KARNATAKA BANK LTD
System/Database Analyst
environments, performance tuning, Schema creation, maintenance, and troubleshooting. Also Administered, maintained, developed and implemented policies and procedures for ensuring the security and integrity of the Bank for all the branches in Bombay, India. Responsibility (Leistung): ? Installed of Oracle 7.3.4 database server on HP-UX and created a new target database. ? Interconnected the servers of the different branches of the bank successfully. ? Implemented database security and created and assigned appropriate roles and privileges as required by the application. Enforced to perform day end operation and prepare the database for next day business transactions to avoid any fraud and discrepancy. ? Implemented successfully all the banking software, application and the changes in the database design and modified stored procedures. ? Re-sized database objects for effective space management and optimal performance. ? Implemented Database backups and recovery. Developed scripts for cold backup. Environment (Umwelt): Oracle 7, HP UNIX.
ZENITH COMPUTERS LTD
Sr. Software Support Engineer
Support UNIX and Novel LAN Operating System for various clients. Enhance system performance, perform restores, implement recovery procedures, handle performance tuning and conduct regular system backups.
DCM DATA PRODUCTS
System Engineer
Support and install UNIX Operating System for various clients. Enhance system performance, perform restores, implement recovery procedures and conduct regular system backups.