This document is a curriculum vitae for Amith Rayappa that summarizes his work experience and qualifications. It outlines his 6 years of experience in IT and over 2 years working as a Hadoop Administrator, along with expertise in installing and managing Hadoop clusters. It also provides details of his past roles as a Siebel Administrator and his educational background, including a master's degree from BITS Pilani.

1. Curriculum vitae
Amith Rayappa eMail: amitmce@gmail.com
DOB: 07-11-1988 Contact: +91(0) 9738282577
SUMMARY:
 Overall 6 years of experience in IT and 2+ years in Hadoop as a Hadoop Administrator
 Solid Knowledge of Hadoop framework and its Eco-System.
 Expertise in Hadoop architecture, design and development of Big Data platform including
large clusters, Hadoop ecosystem projects
 Expertise to install Hadoop and its related components in a multi-node cluster
environment.
 Expertise in Implement new Hadoop hardware infrastructure
 Expertise in HDFS Architecture and Cluster concepts.
 Worked in 24x7 environment for production support in an on-call rotation.
 Expertise in Cluster Installation for Lab, Staging and Production environment
 Expertise in Hadoop job schedulers such as Fair scheduler and Capacity scheduler
 Knowledge of Cluster coordination services using Zoo Keeper.
 Expertise to install Hadoop and its related components in a multi-node cluster
environment.
 Having working Knowledge and experience on Cloudera Hadoop (CDH5)
 Experience on installing Ecosystem Components such as Hive 0. 13.0, HBase 0.98,sqoop
1.4.5, MySQL 5.5, Oozie 4.0
 Should manage and clearly articulate in detail on managing HDP upgrades with rollback
options
 Experience in configuring other Hadoop data distribution services like HBase, Hive, Impala
etc. on a need basis
 Experience in configuring on demand Hadoop clusters
 4 Yrs.of the Experience in Oracle SIEBEL 7.8, 8.1 and 8.2 on UNIX and Windows
implementation and troubleshooting
 Excellent planning, analytical, written Communication and Interpersonal skills.
 Proven ability to work efficiently in both independent and team environment.
Educational Profile:
Qualification University /Board Year Percentage
Master of Science BITS, Pilani 2011-2013 7.4(CGPA)
Bachelor of Engineering(E.C.) MCE, Hassan
(Vishveshwarya Uni.)
2006-2010 81.85%
PUC P.U. Board Karnataka 2004-2006 86.00%
SSC KSEEB 2003-2004 84.00%

2. Career Profile:
Big Data Apache Hadoop, Hive, Sqoop, Pig, HBase, Flume, Cloudera,
Operating Systems Windows, Linux, Centos,
Database MS-SQL, MySQL
Monitoring tools Cloudera Manager , Nagios , Ganglia
 Working as Associate IT Consultant (Hadoop Administrator) with ITC Infotech India Ltd,
Bangalore from October2014 to till date.
PROJECT DETAILS:
Project #1
Client : Landmark
Role : Hadoop Administrator
Duration : Oct 2014– Till date
Project Description:
Landmark group is Dubai based group working in Retail business, It has 20 territories
with multiple concepts across each territory. The Production Cluster is of 200+ nodes
with 180 GB daily inflow data and around 380 TB of total data .Analyze hive, SQL queries
and refactor for better performance which includes backup of data to S3 , purging of
data in Hadoop cluster based on the retention period.
Roles & Responsibilities:
 Installed and configured hadoop ecosystem tools Sqoop , Flume,
HBase,Zookeeper,oozie.
 Configured various property files like core-site.xml, hdfs-site.xml,
mapred-site.xml based upon the job requirement.
 Managing alerts from cluster monitoring tools like Ganglia and Nagios.
 Managing and reviewing Hadoop log files.
 Performance tuning of Hadoop cluster and Hadoop jobs.
 Disk space management and monitoring.
 Importing and exporting data into HDFS using Sqoop.
 Performing data balancing on clusters.
 Managing HDFS cluster users, permissions.

3.  Involving in Analyzing system failures, identifying root causes, and recommended
course of actions. Documented the systems processes and procedures for future
references.
 Taking backup of hadoop metadata using snapshots.
 Working together with infrastructure,network and application teams to
guarantee high data quality and availability.
 Install Hadoop patches and version upgrades when required.
 Decommissioning and commissioning the Node on running hadoop cluster.
 Work along with the Service Providers to resolve the tickets that were raised by
various business teams
 data copy from one cluster to another or cluster using distcp utility
 Install and configure different Hadoop ecosystem components such as HBase ,
Hive, Pig, Sqoop, Flume etc. as per requirement of specific PoCs and solutions.
 Troubleshooting,diagnosing,solving and managing hdfs and mapReduce job
issues.
2. Worked as Siebel Administrator in IPSoft Global Services Bangalore from Sept 2013 to till
Oct 2014.
Technical Skills:
CRM Siebel8.1
Siebel Proficiency Siebel Server and Application Administration,User
Administration, Repository management.
Databases Oracle 11g,
Platforms AIX
Tools used Informatica 8.6, OBIEE 10.1.3.4, DAC 10g

4. PROJECT PROFILE:
Project #2
Client : MasterCard
Role : Siebel Administrator
Duration : Oct 2013– Oct 2014
ProjectDescription:
MasterCard isa NewYork basedmultinational financial servicescorporation,whichprocesses
paymentsbetweenthe banksof merchantsandthe card issuingbankswhouse the
"MasterCard"brand debitandcreditcards to make purchases. We Provide 24*7 monitoring,L1
& L2 supportprovidedforthe MasterCardSiebel environment.
Roles & Responsibilities:
■ Provide Dev, Stage, Prod and KSC environment support for Siebel Enterprise
Marketing/Call Center applications by making sure that the response & resolution times for
issue is within acceptable SLA’s.
■ Provide support on Siebel Releases activities on Dev/Stage/Prod/KSC environments
– Responsibilities include Repository Migrations, SRF Pushes, Incremental/Full
Compilations, DDL sync, Browser Scripts, file deployment as per implementation
document
■ Provide support on OBIEE, DAC, Informatica Releases activities on
Dev/Stage/Prod/KSC environments – Responsibilities include RPD Migration,
Connection pool updation, OBIEE/DAC/Informatica Service bounces, DAC
Repository Migration, Informatica Repository Migration, Informatica Workflow
migration, files deployment as per implementation document.
■ Responsible for coordination with multiple Infrastructure teams like critical
Upgrade/Patch activities with OS groups, DBA group, Onsite/Offshore Siebel
development teams to support production and release activities.
■ Configuration and Tunings of Siebel Servers and Components
■ We use IBM GSM change Management tool to track all changes implemented across all the
environments.
■ Coordinate with oracle effectively for issue resolution. Use support web effectively
and follow up on service requests for high priority issues.

5. ■ MasterCard use Serena PVCS version control tool to Manage Siebel release
activities across all the Siebel environments.
■ User provisioning request processed for Call Center agents on MAC Siebel Call
Center application as per telecom team request.
■ 24x7 monitoring - to monitor Siebel services,components, tasks etc
3. Worked as Siebel Administrator in Techmahindra Bangalore from Oct 2010 to till Sep
2013.
Technical Skills:
CRM Siebel 7.8, Siebel8.1
Siebel Proficiency Siebel Server and Application Administration,User
Administration, Repository management.
Databases Oracle 10g, MS SQL Server 2000
Platforms Sun Solaris , MS Windows XP 2003 Server.
PROJECT PROFILE:
Project #2
Client : British Telecom
Role : Siebel Administrator
Duration : Oct 2010– Sep 2013
ProjectDescription:
BritishTelecom isone of the largesttelecommunicationsservicescompaniesinthe worldand
has operationsinover170 countries.Toprovide 24x7ServerAdministrationandReleaseMgmt
supportto the existingOne Siebel application.

6. Roles & Responsibilities:
■ Environment support, Environment Maintenance Activities.
■ Coordinate with various stakeholders and ensure timely closure of open action items
(includes Oracle, Infrastructure vendors, Application Development and Maintenance teams)
■ Release Deployments - Deployment of release on UT,CST and other Testing environments
■ Configuration and Tunings of Siebel Servers and Components
■ Building new Environments , creation and assigning of components.
■ Creation and Monitoring of IBM Message Queues based on the requirement.
■ 24x7 monitoring - to monitor Siebel services,components, tasks etc
■ Using unix script developed automations to monitor the applications and automated the
process to reduce manual work.
Personal Details
Date of Birth : 07 Nov 1988
Marital Status : Unmarried
Nationality : Indian
Language Known : English ,Hindi, Kannada.
Current location : Bangalore, India
(Amith R)