Hi,
Hope you are doing well.
We do have a position for “Druid DBA” with our client. Please find the details below and if interested please send me your updated word format resume.
Tittle: Druid DBA
Location: Tampa, FL
Experience : 10 +Years
Duration: Fulltime
Job Description:
Key Responsibilities:
Must Have Technical/Functional Skills:
Total Experience: 10 to 15+ years of experience in Database Administration, Big Data Engineering, or Systems Infrastructure.
Apache Druid Expertise: Minimum of 5+ years of dedicated, hands-on production experience managing, troubleshooting, and tuning multi-tier Apache Druid clusters.
Database &; Metadata Knowledge: Expert proficiency in SQL, PL/SQL, query optimization, and administering relational databases (MySQL, Oracle, PostgreSQL) serving as Druid metadata stores.
Streaming & Messaging: Hands-on experience integrating Druid with real-time streaming platforms (Apache Kafka, Amazon Kinesis, Pulsar).
Distributed Systems & Storage: Solid knowledge of HDFS, AWS S3, or Blob Storage for Deep Storage management.
OS &; JVM Mastery: Deep understanding of Linux OS kernel settings, networking, JVM direct memory allocation, optimization.
Automation &; DevOps: Proficiency with Linux/Bash scripting, Python, Ansible playbooks, Terraform, and CI/CD tools (Jenkins, GitLab).
Roles & Responsibilities:
We are seeking a Senior Apache Druid Database Administrator (DBA) with extensive hands-on experience in managing, optimizing, and scaling production-grade Apache Druid clusters. In this role, you will be responsible for maintaining high availability, optimizing sub-second OLAP query performance, managing streaming and batch data ingestion pipelines, and ensuring seamless platform operations across petabyte-scale datasets.
The ideal candidate will possess a deep background in distributed systems, advanced database administration, JVM tuning, and real-time event processing. You will work closely with network architects, infrastructure teams, and analytics engineers to ensure robust data reliability, capacity planning, and zero-downtime operations.
Key Responsibilities:
1. Cluster Architecture & Administration
Architect, deploy, configure, and administer multi-node, multi-tiered Apache Druid clusters
across Coordinator, Overlord, Broker, Router, Historical, and Middle Manager/ Indexer node roles.
Execute zero-downtime rolling upgrades, patch management, and capacity sizing for multi-
tier Historical storage pools and worker parallelism.
Perform deep JVM tuning across all Druid service roles, including heap allocation, direct
memory buffers, G1garbage collection parameters, and off-heap memory settings.
Maintain cluster metadata stores (MySQL / PostgreSQL) and optimize deep storage
interfaces (AWS S3, HDFS, or Azure ADLS Gen2).
2. Ingestion & Pipeline Engineering
Manage and troubleshoot real-time streaming ingestion specs via Apache Kafka Supervisor
services and Apache Flink/Spark integration.
Design and execute batch ingestion specifications using Hadoop-based or native SQL index
tasks for historical network datasets (e.g., CDR, IPDR, and telemetry logs).
Fine-tune ingestion parameters including taskCount, replicas, segment Granularity,
queryGranularity, and maxRowsPerSegment to ensure sub-5 second end-to-end ingestion latency.
Implement dead-letter queue (DLQ) handling, schema evolution management, and schema-
validation enforcement.
3. Segment Lifecycle & Performance Tuning
Design automatic compaction strategies, defining target segment size thresholds and skip
offsets to eliminate segment fragmentation.
Define data retention rules, load/drop policies, and tier assignment rules between Hot and Cold Historical tiers to optimize storage costs against performance SLAs.
Analyse slow query profiles via Broker access logs to tune dimension/metric cardinality,
bitmap indexing, time-based partitioning, and rollup strategies.
Apply approximate algorithms (e.g., Hyper Loglog, Theta Sketches, Quantiles) where appropriate to balance query execution speed with precision.
4. Operations, Observability & Security
Build operational dashboards and alerts using Prometheus, Grafana, and Splunk/CloudWatch to track key cluster metrics (ingestion lag, segment count, cache hit
ratios, pauses, memory pressure).
Enforce security protocols including Kerberos authentication, TLS/SSL encryption in transit
and at rest, Role-Based Access Control (RBAC), and Apache Ranger integration.
Lead incident response, root cause analysis (RCA), and disaster recovery (DR) drills,
maintaining runbooks for automated recovery and zero-loss operations.
• Education: Bachelor’s or Master’s degree in electrical engineering, Telecommunications, Computer Science, or related field.
• Experience: 12+ years of experience in mobile network applications , with at least 3 years in an architectural and Kubernetes.
Generic Managerial Skills:
Crisis Management Staying calm during a massive network outage to direct the IT NOC team effectively.
Stakeholder Mgmt. Explaining to non-technical C-level why a Druid Migration is necessary
Bhakti Chaudhari
(678) 685-3024
