Rajasekar M. Profile

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$50 USD / hora

bangalore,

india

$50 USD / hora

Aquí son las 12:18 a. m.

Se unió el agosto 19, 2013

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Rajasekar M.

@raajasekarm

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$50 USD / hora

bangalore,

india

$50 USD / hora

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Database Consultant - OLTP & OLAP - RDBMS & NoSQL

I am a Database Consultant with 20+ years of experience on various RDBMS and NoSQL databases like Oracle, MS SQL Server, DB2 UDB, Hyperion Essbase and Cassandra. I've data modeling experience using ERWin on both OLTP and OLAP i.e., ER and Dimensional modeling. Extensively used PL/SQL and T-SQL programming to develop small business applications. I worked on various data migration projects and deployed HADR solution (Oracle Data Guard, RAC, Oracle Streams, Golden Gate, SQL AlwaysOn etc.) for various customers on both hardware and virtual environments (VMWare). Also, engineered the high performance and zero downtime hardware and virtual appliances. Involved in capacity planning (i.e., sizing the hardware) activities to recommend the sizing needs depending on the customer workloads. Resolved numerous customer production database performance issues (related to infrastructure, design, application etc.) after thorough root cause analysis using AWR, ASH, DMV, SQL Profiling, etc.

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Experiencia

Freelancer

mar 2018 - Presente

Oracle, MS SQL Server, DB2 UDB, Cassandra, Hyperion Essbase, ERWin OLTP, DWH BI, Data Modeling, Database Architect, Data Architect, PL/SQL, T-SQL

RSA, The Security Division of Dell EMC

mar 2010 - feb 2018 (7 años, 11 meses)

Architected & designed a high availability, high performance, and highly scalable security environment for physical and virtual appliance. Configured bi-directional Oracle Streams Replication for availability. Configured Oracle Advanced Security feature to secure the appliance network. Mentoring team members. Analyze, root cause and resolve the database (Oracle, IBM DB2 and SQL Server) performance issues. Installation and configuration of Oracle Clusterware and RAC database for RSA application.