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Database Administrator - PostgreSQL

Database Administrator - PostgreSQL

Strategic HR SolutionsDelhi, IN
30+ days ago
Job description

Job Description :

We are seeking a highly experienced Database Administrator with 1215 years of hands-on expertise in managing large-scale database environments, specifically PostgreSQL and Greenplum, with working knowledge of Oracle. The ideal candidate must have a strong background in the telecom domain, capable of handling complex database systems, performance tuning, and integration with telecom data platforms.

This expert-level role will play a critical part in ensuring the reliability, performance, and scalability of the organizations on-premises data warehouse infrastructure.

Key Responsibilities :

  • Administer, monitor, and maintain Greenplum and Oracle database environments.
  • Implement and manage backup, restore, disaster recovery, and high-availability strategies.
  • Perform performance tuning, query optimization, partitioning, and indexing for large telecom data volumes.
  • Conduct user access management, role-based security, and compliance enforcement.
  • Support data sharing and integration with downstream systems for analytics and reporting.
  • Work closely with data engineers, developers, and architects to align DB design with project requirements.
  • Analyze logs, troubleshoot system issues, and ensure database uptime and reliability.
  • Provide expert advice on PostgreSQL / Greenplum internals, replication strategies, and cluster configurations.
  • Stay up to date with advancements in database technology, especially in MPP architectures.

Required Skills & Experience :

  • 12 - 15 years of experience in Database Administration, including at least 5+ years of in-depth Greenplum and PostgreSQL administration.
  • Strong understanding of Greenplum internals, segment / primary / mirror nodes, resource queues, and parallel query execution.
  • Experience managing large-scale telecom databases, including billing, usage, network, and customer data domains.

    • Proven expertise in :

  • SQL performance tuning
  • Backup / recovery tools and scripts
  • Data replication and partitioning
  • DB patching, upgrades, and maintenance
  • Familiarity with Oracle RDBMS (basic to intermediate level).
  • Working knowledge of Linux OS and shell scripting.
  • Excellent communication, documentation, and cross-team collaboration skills.

    • Preferred Skills :

  • Familiarity with ETL / data integration tools (e.g., Informatica, NiFi, Kafka pipelines).
  • Exposure to cloud database technologies (AWS Redshift, Google BigQuery, etc.) for hybrid models.
  • Experience in automating DBA tasks and scripting for monitoring and alerting.
  • Understanding of data governance, data privacy, and security compliance in telecom environments.

    • ref : hirist.tech)

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