Senior Hadoop Administrator

About Position:
We are seeking a highly skilled Senior Hadoop Big Data DBA to manage, support, and optimize enterprise-scale Cloudera Data Platform (CDP) environments. The ideal candidate will be responsible for Hadoop platform administration, security, performance tuning, capacity planning, disaster recovery, automation, and production support while ensuring high availability and reliability of critical big data platforms.
Role: Senior Hadoop Administrator
Location: All Persistent Locations
Experience: 7 to 14 Years
Job Type: Full Time Employment
What You'll Do:
Administer and manage Cloudera CDP/CDH clusters across production and non-production environments.
Install, configure, patch, upgrade, and maintain Hadoop ecosystem services including HDFS, YARN, Hive, Spark, Kafka, HBase, Impala, Solr, Oozie, Hue, Ranger, Atlas, Knox, and ZooKeeper.
Perform platform upgrades, cluster expansion, health checks, and lifecycle management activities.
Optimize Hadoop cluster performance through tuning of HDFS, YARN, Hive, Spark, Kafka, HBase, and Impala workloads.
Develop and maintain capacity planning models for storage, compute, and resource utilization.
Implement and manage security controls including Kerberos, Ranger, Knox, TLS/SSL, LDAP/AD integration, and HDFS encryption.
Design, implement, and test backup, disaster recovery, failover, and cross-cluster replication strategies.
Automate infrastructure deployment, configuration management, and operational processes using Ansible, Python, Shell scripting, and Terraform.
Monitor platform health using Cloudera Manager, Prometheus, Grafana, Splunk, and related monitoring solutions.
Participate in 24x7 on-call support and provide L3 support for critical production incidents.
Conduct root cause analysis (RCA) and implement corrective and preventive actions.
Collaborate with Data Engineering, Security, Infrastructure, and Operations teams to ensure platform stability and scalability.
Mentor junior team members and contribute to operational best practices, documentation, and runbooks.
Expertise You'll Bring:
5+ years of hands-on experience in Hadoop/Big Data Administration.
Strong experience with Cloudera CDH/CDP environments and Cloudera Manager.
Expertise in Hadoop ecosystem technologies including HDFS, YARN, Hive, Impala, Spark, Kafka, HBase, Solr, Oozie, Hue, and ZooKeeper.
Experience managing security frameworks such as Kerberos, Ranger, Atlas, Knox, TLS/SSL, and LDAP/Active Directory integration.
Proven experience performing Hadoop platform upgrades, migrations, and production support activities.
Strong knowledge of Linux system administration, networking, storage concepts, and performance tuning.
Experience with backup, disaster recovery, replication, and high-availability architectures.
Strong scripting and automation skills using Python, Bash, and Ansible.
Familiarity with Terraform, Jenkins, GitLab CI/CD, and Infrastructure-as-Code practices.
Hands-on experience with monitoring tools such as Cloudera Manager, Prometheus, Grafana, ELK/EFK, and Splunk.
Excellent troubleshooting, incident management, and problem-solving skills.
Strong communication skills and ability to work effectively in cross-functional teams.
Experience with CDP Public Cloud, AWS, Azure, or GCP.
Knowledge of Iceberg, Delta Lake, Hudi, Trino/Presto, Airflow, and Flink.
Experience with Kubernetes, OpenShift, Helm, and containerized data platforms.
Cloudera, RHCSA/RHCE, or Kafka-related certifications
Benefits:
Competitive salary and benefits package
Culture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications
Opportunity to work with cutting-edge technologies
Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards
Annual health check-ups
Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents
Values-Driven, People-Centric & Inclusive Work Environment:
Persistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.
We support hybrid work and flexible hours to fit diverse lifestyles.
Our office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.
If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment
Let's unleash your full potential at Persistent - persistent.com/careers
"Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind."

Work arrangement
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