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Overview
Alfa-Bank is looking for a Lead DevOps Engineer to manage and develop their Hadoop cluster, ensuring service availability and performance optimization.
Responsibilities
- •Administration and development of the Hadoop cluster (HDFS, YARN, Hive, Spark)
- •Ensuring service fault tolerance and availability
- •Monitoring, alerting, and incident analysis
- •Performance optimization of the cluster and services
- •Automation of routine operations (Ansible, scripts)
- •Interaction with development and analytics teams
- •Documentation maintenance (runbooks, instructions)
Requirements
- •Experience in Linux administration (systemd, networks, disks, RAID/LVM)
- •Practical experience with Hadoop (HDFS, YARN, Hive, Spark)
- •Understanding of HA (Active/Standby, Zookeeper quorum)
- •Experience in configuring Kerberos and TLS
- •Diagnostic skills (top, iostat, vmstat, tcpdump)
- •Experience with monitoring (Prometheus/Grafana or similar)
- •Bash/Python, Ansible S3 / Object Storage
- •Experience with S3-compatible storage (MinIO, AWS S3)
- •Integration of Hadoop/Spark with S3 (s3a)
- •Understanding the differences between HDFS and Object Storage
- •Optimization of S3 usage (multipart upload, tuning)
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