Rehan Tabish

I’m an experienced Big Data Administrator with 3+ years of hands-on expertise managing Cloudera-based enterprise data platforms. I administer Spark, Kafka, Hive (including LLAP and ACID tables), and secure governance via Apache Ranger, while optimizing performance, reliability, and cluster health across mission-critical analytics workloads.

I integrate on-prem and cloud environments to enable secure data access, enforce Kerberos and TLS encryption, and streamline operations through automation with Python and Shell scripting. I build and manage Kafka streaming infrastructure (including Kafka Connect), troubleshoot complex Hadoop components (YARN, ResourceManager, HDFS, Zookeeper), and deliver scalable big-data deployments using AWS services with Infrastructure as Code (Terraform and CloudFormation), supported by monitoring and CI/CD with Jenkins, Docker, and Kubernetes.