● Hands on experience in planning and deploying cluster upgrades and maintenance end to end ensuring smooth transition via cluster availability and data integrity.● Full-stack troubleshooting skills across network, application and distributed services layers.● Support services from Dev till Production via infrastructure design, software platform development, stress testing, capacity planning, performance tuning and overall system health etc. Maintain services on clusters and ensure service availability.● Hands on experience in system administration skills, including automation and orchestration of Linux/Windows using Chef, Puppet, Ansible and containers (Docker, Kubernetes, etc.)● Working extensively on IAC technologies like terraform and used it to automate all infrastructure needs in AWS and Azure.● Configured application monitoring and alerts for on-prep and cloud applications using Prometheus with Grafana and Dynatrace.● Responsible for setting KPIs and SLOs.● Proficiency with continuous integration and continuous delivery tooling and practices likeJenkins.● Worked on provisioning and maintaining Docker containers using Kubernetes.● Expert in handing Big data applications support and deploy upgrades. Patching and upgrades with backup and restore capabilities.● Incident/escalation management and reporting with RCA.● Collaborating and resolving platform/environment issues with various network, database andapplication teams.● Worked extensively on HDP and HDF stack including spark, kafka, nifi, hive,Ranger, Ranger KMS, Zeppelin, Knox, Atlas, HDFS, HBASE, Zookeeper,Yarn, configuring highavailability, load balancing, Solr and others.● Experience in Support and maintenance of data Lake, Data Hub, HD Insights, Hadoop,Cloudera, MongoDB, MySQL.● Knowledge of programming and scripting languages such as PowerShell, Bash,SQL, Java, Python● Hands on experience on Kerberos, Ranger and Knox respectively.

Hands on experience in provisioning production clusters using Ambari and blueprints.Experienced in working on both Hortonworks and Cloudera Platforms.Experience with configuration management and automation tools such as Ansible, Puppet, Terraforms, etc..Experience with relational, graph and/or unstructured data technologies such as SQL Server, Azure SQL, Azure DataLake, HD Insights, Hadoop, Cloudera, MongoDB, MySQL, Neo4j, Cassandra, CouchbaseSoftware development full life-cycle methodologies, patterns, frameworks, libraries and toolsKnowledge of programming and scripting languages such as JavaScript, PowerShell, Bash, SQL, .NET, Java, Python, PHP, Ruby, PERL, C++, etc.Designing hadoop clusters and laying out requirements for functionality clusters. Capacity planning, node requirements and responsible for designing hadoop service catalog.Worked on security and networking requirements for secure data transfer and access management.Hands on experience in upgrading Ambari and HDP versions on hadoop clusters.Kerberizing hadoop clusters, configuring krb5.conf and managing KDC.Installed and configured various Hadoop services like HDFS with HA, YARN with HA, Storm, MR, Zookeeper, Tez, Ranger, Kafka, Zeppelin, Spark, Hive and Hbase. Expert on data processing, structured, semi-structured and unstructured using Hadoop. Proficient in writing Hive Queries for analyzing data using Hive Query Language (HQL). Have been an interim part of Business and Data Analysis, Data Profiling, Data Lineage, Data Migration, and Data IntegrationInstalled and configured analytical tools like R, Rstudio and Alteryx Server on Hadoop ecosystem. Worked on Google Cloud Platform and AWS.Handled administration activities of maintenance and monitoring HDFS, MapReduce, YARN, Pig, Flume, Sqoop on the Hadoop clusters. Used UNIX Shell Scripting for various periodic jobs and scheduled them using crontab and CAWA schedulers.Worked on Chef to automate installs on Hadoop VM’s

Team lead, big data admin team at ATT. Responsible for all hadoop clusters maintenance and provisioning.Responsible for monitoring, upgrades and immediate defect rectifications on production clusters.Work with security and networking teams to lay out best practices for big data environment.Design infra and chalk out requirements for any new application ready to be deployed on hadoop environment.Analyzed requirements and adding new services on Hadoop ecosystem as per the application requirements.Responsible for horizontal scaling of the cluster by adding new nodes to various production clusters.Performance tuning the cluster for optimum performance and user requirements.Creating and managing kafka topics, deploying storm topologies and creating yarn queues for various applications.Installed and configured Syncsort, an ETL tool used for batch processing. Handled deployments of any new application in the cluster. Responsible for end to end big data processing for more than 50 applications on everyday basis. Experience in managing and reviewing Hadoop log files. Played an important role in big data projects like data acquiring, data processing, data monitoring and data serving using dash boards. Frequent client interactions, analyzing their requirements and chalking out plans to fulfill these requirements Proficient at Shell Scripting to automate various jobs.

Hadoop HDFS filesystem layout, design, and management. Directory creation, permissions, and ownership management. Experienced with managing Nagios, a hadoop monitoring system. Setup alerts to send emails to team in case of failures or non-functional components Installation activities of Hadoop Ecosystem (HDFS, MapReduce, HBASE, Hive, Pig, Flume, Sqoop, Oozie, and Zookeeper) Setup of schedulers in Hadoop including the Capacity and Fair Schedulers, customizing to the client requirements Worked on various data load activities using Sqoop Implemented many automated job via cron scheduler and TWS Fine-tuning the cluster to provide stability, high-secure and robust using various configuration properties and monitoring practices

Integral part of the team in developing application namely SWYPE for Coleman Group Consulting, Chicago, Illinois Swype is an android application used to make donations to churches in Chicago. Implemented layouts in the entire android application and assisted in code development. Developed an application for online hotel booking using Core Java. Developed and tested the entire code Have used and suggested best practices in various fields of development, testing, implementation, and post production support Have a good understanding of the complete Development Life-Cycle process and utilizing the corporate’s standards Involved in getting the User Requirements, Data Modeling & Development of the system. Creation of E-R diagram and Data Flow diagrams Documentation for the system Organized the activities onsite and ensured that Deadlines, Quality Standards, and expectations of Client were met.