SUMMARY:

• Three (3) years of experience in Hadoop Administration & Big Data Technologies and six (6) years as a Linux System Administrator
• Strong interpersonal and organizational skills
• Proficiency in Hadoop Ecosystem: Hive, MapReduce, Sqoop, Flume, Zookeeper, Federation, Pig, Oozie, SQL, NoSQL, and HBase
• Knowledge of Zookeeper and Federation
• Very proficient in using Command Line Interface (CLI) and GUI administration
• Competency in the use of Microsoft office® and MS Visual Studio
• Hands on experience configuring and managing TCP/IP networking on RHEL systems
• Hands on experience installing and configuring DHCP, DNS, NFS server, Apache HTTP, Apache Tomcat, Nginx Web Server, and OpenSSH, LDAP, Kerberos
• Experience with Bash Shell and Python scripting
• Possess good Linux Systems ( 500 - 100 0 physical and virtual servers) troubleshooting skills
• Linux (Redhat, CentOS, Ubuntu, Debian), Windows Server (2008, 2012, 2016)
• Dell PowerEdge R730, R910 servers
• OptiPlex 9040 server
• Experience in Puppet, NetBackup, Wandl IP/MPLS, RADVIEW

PROFESSIONAL EXPERIENCE:

Confidential, Montgomery Village, MD

Hadoop Administrator

Responsibilities:

• Responsible for installing, configuring, supporting and managing Hadoop clusters using Apache, Hortonworks (HDP2.0 - HDP2.4) & Cloudera (CDH3, CDH4), and Yarn distributions.
• As an admin involved in multiple Hadoop cluster capacity planning, maintenance, performance tuning, and trouble shooting. Monitored and followed proper backup & recovery strategies for High Availability
• Configured various property files like core-site.xml, hdfs-site.xml, mapred-site.xml based upon the job requirement
• Design Big Data solutions for traditional enterprise businesses capable of supporting and processing large sets of structured, semi-structured and structured data
• Experience in managing and reviewing Hadoop log files
• Experience in commissioning, decommissioning, balancing, and managing Nodes on Hadoop Cluster.
• Installation and configuration of Hadoop Ecosystems like Sqoop, Pig, Hive, Flume, and HBase and Hadoop Daemons on the Hadoop cluster
• Involve in analyzing System failures, identified root causes, and recommended course of actions. Documented the systems processes and procedures for future references
• Worked with Data Architects to plan and deploy new Hadoop environments and expand existing Hadoop clusters.
• Experience in installing and configuring Kerberos for the authentication of users and Hadoop Daemons
• Monitored multiple Hadoop cluster environments using Ganglia and Nagios, and monitored workload, job performance and capacity using Cloudera Manger and Hortonworks Ambari
• Experience in HDFS data storage and support for running map-reduce jobs.
• Experience in importing and exporting the data using Sqoop from HDFS to Relational Database systems/mainframe and vice-versa.
• Defining and scheduling all Hadoop/Hive/Sqoop/HBase jobs using Oozie
• Importing and exporting data from web servers into HDFS using Flume
• Deployed Hadoop clusters on Amazon EC2 with HDP2

Confidential, Greenbelt, MD

Sr. System Administrator

Responsibilities:

• Administrating various servers and services using a diverse set of computing platforms.
• Setting up accounts, maintaining system documentation, tuning system performance, installing system wide software.
• Provide recommendations to purchase hardware and software, coordinating the installation of these products and providing backup recovery when necessary.
• This would also include work on holidays, as necessary.
• Working directly with other NICS employees, as well as Confidential Engineers to collect and then implement requirements.
• Developing overall strategy, design, implementation and operational aspects of multiple systems, operating environments, and related software
• Administering Patch-link Update Server, Foundstone, FoundScan, Nessus Scanner, HP OV NNM, Opsware NAS, MS SQL Server, BIND 9, at least two firewall platforms, Remedy ARS, Sybase, postfix, apache, MySQL, MRTG, SSH, IPSEC-based VPN’s, LDAP, AD, Snort.
• Implementing FISMA Accreditation and Authorization requirements is a desired skill.
• Managing projects, developing requirements documents, developing detailed design documents as well as developing operational implementation plans is a plus.

Confidential, Washington, DC

Linux System Administrator

Responsibilities:

• Scheduling and managing jobs, patches and configuration files with Red hat Satellite
• Working with Puppet installation / transitioning configuration management from satellite manager to Puppet and creating manifests for configuration files, package and service management
• Provide accurate and timely monthly reporting of activities (as required) using activity reporting software and tools.
• Develop schedules & implement preventive and corrective maintenance services to maximize server uptime and performance.
• NFS/CIFS filesystem mounting and support
• Configured Iptables, SELinux, Port management, and Network Settings and Security
• Provided 24 hr. Technical support on Linux systems
• Created documentation and Pre-Installation Tasks (Server hardware/OS specification for System and Application Installs)
• Install and manage physical and virtual Linux machines on VMware ESXI
• Server patching on production servers and performing performance readiness review on servers before deployment
• Developed automated build and system tasks using Shell Scripts (Bash, Sed/Awk)

Confidential, Princess Anne, MD

Linux System Administrator

Responsibilities:

• Planning, installation, configuration, management, and troubleshooting of Red Hat Enterprise Linux Platform (Centos, Scientific Linux, Kali Linux), Ubuntu, Fedora, OpenSUSE
• Maintain file system and host security using chmod, chgrp, immutable bit and TCP wrappers
• Troubleshoot and resolve networking issues
• Provide accurate and timely monthly reporting of activities (as required) using activity reporting software and tools
• Utilize CRON and AT, and Bash Scripts to schedule and run jobs
• Apply System Patches and Updates