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Lead-System Administration (Hadoop/EMR) Bangalore Full time Work timing: IST (Standard) Must-haves: AWS EMR, Hadoop ecosystem HDFS, YARN, Hive, Spark, MapReduce Linux administration (RHEL/CentOS/Ubuntu) AWS: EC2, S3, IAM, VPC, CloudWatch Distributed systems Zookeeper, Solr Apache Tomcat, Java deployments Shell/Python scripting Monitoring tools CloudWatch, Grafana, ELK, Prometheus .