AZHAR WAHID KHATIK
Senior Hadoop & Big Data Platform Administrator
Pune
Summary
Dynamic Senior Hadoop Administrator with over 9 years of experience managing enterprise-scale Big Data platforms, including Hadoop clusters and cloud infrastructure. Expertise in Cloudera CDP/CDH, Hortonworks HDP, Databricks, Azure HDInsight, and AWS, with a strong focus on cluster security, automation, and performance optimization. Proven track record of delivering secure and scalable data platforms that support mission-critical applications while enhancing operational efficiency in production environments. Committed to leveraging advanced technical skills to drive innovation and optimize data solutions.
Overview
9
9
years of professional experience
Work History
Senior Hadoop Administrator
Cognizant Technology Solutions
03.2021 - Current
- Administered and maintained large-scale Hadoop clusters using Cloudera Manager and Apache Ambari across production environments.
- Implemented High Availability (HA) architecture for NameNode, ResourceManager, and HiveServer2, improving platform uptime and fault tolerance.
- Configured enterprise Hadoop security using Kerberos, Ranger, Knox, LDAP, and Active Directory integrations.
- Managed Databricks workspaces, Spark clusters, and Unity Catalog access controls, enhancing security for cloud analytics operations.
- Automated operational and deployment activities using Shell scripting, YAML, and Ansible, reducing manual efforts significantly.
- Performed cluster monitoring, troubleshooting, root cause analysis, and performance tuning, increasing system stability and reliability.
- Automated operational and deployment activities using Shell scripting, YAML, and Ansible, streamlining processes and minimizing manual efforts.
- Reduced cluster downtime through proactive monitoring and HA implementation.
- Improved operational efficiency using automation and scripting solutions.
Hadoop Administrator
Clovertex Technology Pvt Ltd
08.2019 - 02.2021
- Installed, configured, and upgraded Hadoop clusters on Cloudera and Hortonworks platforms to ensure optimal performance and reliability.
- Managed Hadoop ecosystem services including Hive, Spark, Kafka, NiFi, and HBase to support data processing and analytics workflows.
- Implemented Hadoop security policies using Ranger, Kerberos, and Knox.
- Performed troubleshooting, log analysis, and capacity planning for cluster optimization.
- Executed troubleshooting, log analysis, and capacity planning to enhance cluster performance and resource utilization.
- Automated administrative tasks using Shell scripting and Ansible.
Hadoop Administrator
Infosys Ltd
01.2018 - 05.2019
- Administered Hadoop clusters in enterprise production environments, ensuring optimal performance and reliability.
- Configured and optimized Hive, Spark, and YARN services for improved performance.
- Administered Databricks and managed cloud-based analytics infrastructure, enhancing data accessibility and processing capabilities.
- Monitored cluster health, resolved issues, and performed patch upgrades to maintain system integrity and availability.
- Supported Databricks administration and cloud-based analytics infrastructure.
Hadoop Administrator
LTI Infotech
04.2017 - 12.2017
- Administered Hadoop platform and maintained cluster performance.
- Installed, configured, and monitored Hadoop ecosystem services to ensure operational efficiency.
- Executed Linux administration and troubleshooting tasks to resolve issues promptly.
- Managed Linux administration tasks and troubleshooting activities.
Education
Master of Computer Applications (MCA) -
Pune University
01-2016
Bachelor of Science - Computer Science
Pune University
01-2012
Skills
Hadoop expertise
YARN management
Hive management
Spark
Impala
Airflow
Experience with Kafka
NiFi
Big data analysis
Big data technologies
Cloudera CDP/CDH
Hortonworks HDP/HDF
Databricks Administration
Distributed file storage
Cloud Platforms
Microsoft Azure
AWS
Azure HDInsight
Data Lake Storage
Security & Governance
Kerberos
Apache Ranger
Apache Knox
Access Control & Governance
Automation & DevOps
Shell
Ansible
Azure DevOps
Linux Administration
Timeline
Senior Hadoop Administrator
Cognizant Technology Solutions
03.2021 - Current
Hadoop Administrator
Clovertex Technology Pvt Ltd
08.2019 - 02.2021
Hadoop Administrator
Infosys Ltd
01.2018 - 05.2019
Hadoop Administrator
LTI Infotech
04.2017 - 12.2017
Bachelor of Science - Computer Science
Pune University
Master of Computer Applications (MCA) -
Pune University