SUMMARY:

• 4+ years of strong professional experience in Big Data Administration and Linux/Unix Systems Administration.
• Expert in Hadoop Ecosystem and Big Data Solution. Installation, fine tuning and configuration.
• Managed services for Infrastructure and Big Data Clusters.
• Design, Install, Upgrade and Maintain distributed environment and Big Data solutions. Design and develop tools to improve the performance for Big Data clusters .An adviser of SAP Central Process Scheduling system (CPS/RMJ/CRONACLE) experience (5 years). 20 years of experience as DBA / developer with wide variety of databases.
• Proficient in managing Linux (RedHat, Oracle) platform servers and in installation, configuration, supporting and managing Hadoop Clusters .
• Hands - on experience on major components in Hadoop Ecosystem including knowledge of Mapper/Reduce/HDFS Framework.
• Formulated procedures for installation of Hadoop patches, updates and version upgrades and automated processes for troubleshooting, resolution and tuning of Hadoop clusters.
• Experience on Hadoop cluster maintenance including data and meta data backups, file system checks, commissioning and decommissioning nodes and upgrades .
• Experience on Apache Hadoop, Cloudera, Map-Reduce, Pig, Hive, Sqoop, Hbase, ZooKeeper, Squirrel, Ozzie, Core Java, Java Script, J2EE, XML
• Designed and implemented SAP CPS performance testing and health check evaluation.
• Proficient in SAP CPS production support and other environments.
• Oracle (10g,11g) DBA having hands-on experience in DBA activities like Database Maintenance, regular Backup and Recovery activities (using TSM). Experience in operational 24x7 support best practice trouble shooting, monitoring
• Strong pro-active team player.
• Proficient in Software Integration and System migration with multiple platform.
• Web/Application servers: Tomcat 6.0/5.0/4.0, JBoss 5.1.0
• Experience on setup Kerbros 5 KDC security system.

TECHNICAL SKILLS:

Platforms: UNIX (AIX, HP-9000, SunOS, LINUX RedHat Suse)

ORACLE Tools: RMAN

Programming: Oracle PL/SQL, C++, Java, PHP, CGI, Perl, UNIX KSH/CSH

Apache Hadoop Releases: 1.0.1, 2.4.0

PROFESSIONAL EXPERIENCE:

Confidential, Anahiem/CA

Senior Software Data Integration Engineer

Responsibilities:

• Setup JBoss AS 4.2.3 (On Linux 6.7 Oracle Linux)
• Setup, install and test PostFix mail and LDAP systems
• Setup MBIS and Printrak Biometric Software products on Linux 6.7 (Oracle).

Hadoop Administrator

Responsibilities:

• Installed/Configured/Maintained Apache Hadoop clusters for application development and Hadoop tools like HBase, Zookeeper and Sqoop.
• Setup Kerbros 5 KDC security system for managing Cluster authentication and authrorization.
• Fine tuning Map-Reduce jobs for optimized performance
• Performed patching production environment from HDP 2.4.0 to 2.5.0
• Worked on Hadoop cluster scaling from 10 nodes in development environment to 16 nodes in per-production stage and up to 86 nodes in production.
• Commissioned Data Nodes when data grew and decommissioned when the hardware degraded.
• Experienced in managing and reviewing Hadoop log files .
• Installation of various Hadoop Ecosystems and Hadoop Daemons (Hbase, Squirrle,ZooKeeper,Hive) .
• Performed System Administrator on Linux (RedHat RHEL 7.0 GA) platforms.
• Using Cloudera Manager (CDH4) to support the environment
• Manage, deploy and configure infrastructure with Chef.

Hadoop administrator, Oracle DBA, Linux Admin

Responsibilities:

• Installed/Configured/Maintained Apache Hadoop clusters for application development and Hadoop tools like HBase, Zookeeper and Sqoop.
• Experience in collecting metrics for Hadoop clusters using Ganglia .
• Fine tuning Map-Reduce jobs for optimized performance
• Performed patching production environment from HDP 1.01 to 0.23.6.
• Performed a Major upgrade in production environment from HDP 1.3 to HDP 2.0.
• Worked on Hadoop cluster scaling from 4 nodes in development environment to 8 nodes in per-production stage and up to 24 nodes in production.
• Commissioned Data Nodes when data grew and decommissioned when the hardware degraded.
• Experienced in managing and reviewing Hadoop log files .
• Installation of various Hadoop Ecosystems and Hadoop Daemons (Hbase,Squirrle, ZooKeeper, Hive) .
• Performed System Administrator on Linux (Suse 10.1.2, RedHat RHEL 7.0 GA) platforms.
• Monitor cluster stability, use tools to gather statistics and improve performance.
• Handled importing of data from various data sources, performed transformations using Hive, Pig, loaded data into HDFS and HBase.
• Responsible for cluster availability and experienced on ON-call support .
• Performed Oracle DBA day-to-day duties ( backup, database reorganization procedures, scripted database alerts, and monitored scripts., database refresh)

Senior Consultant

Responsibilities:

• I went to variety of on sites clients across Unites States and implemented variety of Redwood installations, training and knowledge transfer engagements.
• I Built CPS architecture to map Redwood best practice document for client own enterprise infrastructure. Some client’s installations (e.g. Southern Edison SCE) were to setup and install different environments (Technical Sand box, Development, QA and Prod) on different platforms (AIX, Windows 2003).
• Also some of the deliverables included supporting staging (job monitoring), Scheduling (creating jobs) and CPS administration (System design, CPS users maintenance, security (SOX compliance), creating time zone, schedulers maintenance, database maintenance, monitor system performance, reporting, licensing, system migration and overlooking load balancing for all SAP jobs across SAP systems).
• I Worked with UNIX/AIX (HA) and WINDOWS (Stretch Clustering) administrators to setup high availability CPS systems for multiple environments.

Oracle Database Administrator (Consultant)

Responsibilities:

• Oracle 8i database Administration for WIN 2000 platform, my tasks involved installation for production and test environment.
• Perform logical, physical backup, and data load. Setting users, roles, profiles and system support.

Senior Lotus Notes Web Developer (Consultant)

Responsibilities:

• CRM System Interface, designed and developed an interface between Notes and CRM to enable blast email to CRM.
• IBD WebCasts and Email meeting notes, designed and developed an interface for storing and launching multi media video conferencing where Notes, Java and CORBA were used.