Abhishek Mishra

Profile

Having over 9 years of experience in performing range of activities such as Managing and maintaining large databases across geographies, perform maintenance and transactional activities in several domain.

Key Strengths

Vertica & Oracle DBA Strong interpersonal skills, demonstrating the ability to quickly build trusted

relationships, and act as coach and mentor. Capability to manage projects/processes on time as per expectation. Ability to acquire new skills/technologies and take on new challenges. Proficient in Oracle database administration for 24x7 requirements. Creating database storage structures (tablespace) once developers have

designed an application Excellent knowledge in Data and User Security. Maintaining archived data on appropriate storage devices. Monitoring and optimizing OS space and Table space. Designs, tests and implements a database backup strategy and disaster

recovery plans (Hot,Cold, Rman). Maintaining and configuring alerts for various process on Servers for database

and applications. Providing excellent, management of workload, strong troubleshooting and

problem solving skill. Consulting with Oracle support via Metalink for various problems. Monitoring the health of the database. Maintaining online Backup/Recovery using RMAN & conventional backup and

recovery methods. Providing training to monitor the health of the Database to junior members of

team. Provide on-call support for mission critical database systems and applications. Knowledge of monitoring tools like grid control or OEM. SAN Migration.

Technical Skills

Database Oracle 9i, Oracle 10g/11g, RAC, Vertica (HP)

Operating Systems UNIX/Linux, Windows 9x, Windows 2000, Windows XP,

Oracle Utilities RMAN, Import/Export/datapump, Datagaurd, Goldengate.

Experience SummaryGloballogic Pvt.Ltd. -NOIDA, Nov “2014 - till date Vertica/Oracle DBA

HP Vertica Installation Activities and Issues on various OS Platform.

(Cell: +919873383155, email: abhishekcsit@gmail.com)

HP Vertica patching and upgradation activities. HP Vertica Backup and Recovery Issues. HP Vertica Table and Projection Management. HP Vertica projections designing based on DBD Designing approach. HP Vertica log analysis using diagnostics and diagdump. HP Vertica Error like Too Many Ros, X Lock Global Catalog, Locks issues. Vertica Integrations with Hadoop like Hdfs and HCatalog connectors

Hortonworks/Cloudera. Vertica Client driver like jdbc/odbc implementation and troubleshooting. Vertica performance tuning using tools like analyze workload, Reviewing of

Query plans And profiling Database performance. Bulk loading in Vertica database

Birlasoft(INDIA) Limited -NOIDA, Dec ’2013 – Nov “2014 Oracle DBA

PROJECTS::

Xerox corporation Dec ‘2013 to Till Date:

Working as Oracle DBA managed databases of Xerox corporation. Database upgrade 10g to 11g. Migrate Linux to unix. Analyzing and rectifying production databases issues and backup failures.

Performed Database/Schema refresh. CPU/PSU Patching Worked on Oracle 9i, 9x, 10g,11g (RAC) databases on UNIX (Sun Solaris,

HP, AIX, and Red Hat Linux). Database refresh (RMAN/Cold backup) and Schema refresh. Database upgrade 10g to 11g. Provided 24X7 supports on a critical production environment. Experience in

support to large database environments. Database migration. Physical standby build. Performance tuning: Worked on slow performance of database and

individual query.

Tata Consultancy services - Gurgaon, Nov ’2011 – Till Dec’2013Oracle DBA

PROJECTS::

Boston scientific corporation Jul ‘2013 to Till Dec’2013:

Working as Oracle DBA managed databases of Boston scientific corporation.

Database upgrade 10g to 11g. Migrate Linux to unix. Analyzing and rectifying production databases issues and backup failures.

Performed Database/Schema refresh. CPU/PSU Patching Worked on Oracle 9i, 9x, 10g,11g databases on UNIX (Sun Solaris, HP, AIX,

and Red Hat Linux). Database refresh (RMAN/Cold backup) and Schema refresh. Database upgrade 10g to 11g. Provided 24X7 supports on a critical production environment. Experience in

support to large database environments. Database migration. Physical standby build.

Performance tuning

Wyndham hotelgroup Nov ‘2011 to Jul ‘2013: Worked as Oracle DBA managed databases of Wyndham hotelgroup. Database upgrade 9i to 10g and 10g to 11g(RAC). Migrate Windows

to linux. Linux to unix. Analyzing and rectifying production databases issues and backup failures.

Performed Database/Schema refresh. CPU/PSU Patching(For grid/database). Worked on Oracle 9i, 9x, 10g,11g databases on UNIX (Sun Solaris, HP, AIX,

and Red Hat Linux). SAN Migration (10g/11g). Schema refresh. Involvement in goldengate Technology. Provided 24X7 supports on a critical production environment. Experience in

support to large database environments. Performance tuning

Wipro Technology.- Greater Noida, May ’2011 – Oct ‘2011Oracle DBA

Was on bench(Free pool).

Accenture services Pvt.Ltd.- Gurgaon, Jul ’2010 – March’ 2011Oracle DBA

Roles & Responsibilities

Worked as Oracle DBA managed databases of Thomas cook.. Analyzing and rectifying production databases issues and backup failures.

Performed Database refresh. Involved in Physical standby database creation. Performed various transition activities like installing oracle configuring grids

and agents Managed issue tickets for production database. Provided 24X7 supports on a critical production environment. Experience in

support to large database environments. Managed multiple production databases , test and development

databases.  Monitered database through OEM.

TriCore Solutions- Gurgaon, Feb ’08 – July ‘10Oracle DBA

Roles & Responsibilities

Worked as Oracle DBA managed databases of multiple clients across geographic.

Analyzing and rectifying production databases issues and backup failures. Performed Database refresh. Performed various transition activities like installing oracle configuring grids

and agents Managed issue tickets for production database.

Exposure of RAC (Real Application Cluster) environment. Experience in administering production, development and test databases. Daily Reports Generation Related to Oracle DBA Activities. Worked on Oracle 9i, 9x, 10g databases on UNIX (Sun Solaris, HP, AIX, and

Red Hat Linux), Windows platform. Provided 24X7 supports on a critical production environment. Experience in

support to large database environments. Managed multiple production databases , test and development

databases.  Monitered database through OEM.

Key Activities in Tricore Solutions

Managed databases of multiple clients across geographic. Involved in Creation of RFC’s with Oracle-On-Demand. Handled issues related to databases and backup failures. Performed maintenance activities related to Tablespaces and mount points. Involved In Cloning ,Patching and DB Upgradation activities Performed various transition activities like installing oracle configuring grids

and agents Involved in Physical standby database creation

Core database system pvt.ltd. Noida – New Delhi, May ’06 – Feb ’08 Oracle DBA

Roles & Responsibilities

Worked as Oracle DBA managing databases of multiple clients across geographic.

Analyzing and rectifying production databases issues and backup failures. Handled issues related to databases and backup failures. Handled Level 1 support for database issues such a monitoring of alerts,

creating users and managing privileges, troubleshooting.

Educational Qualifications Degree/Diploma University/Institute Completion

Year

B.Tech. B.Tech. from MJP Rohilkhand University Bareilly, U.P.

2006

10+2 U.P. Allahabad Board 200210th U.P. Allahabad Board 2000

Professional Qualifications

Degree/Diploma University/Institute Completion Year

OCP(Database Administration) 10g/11g

ORACLE 2010/2013

ITIL Certification 2012

Personal Details

Date of Birth : 23th, July, 1983 Marital status : Single Address : I-719, 1st Avenue Gaurcity 1 Noida extension 201301. Passport no: G9795377

(Abhishek Mishra)