Database Administrator

3 weeks ago

Mumbai, India Jio Full time
Job Title: Database Administrator


Job Description:

We are seeking a Senior Database Administrator with extensive experience in managing large-scale databases, primarily Oracle 19c and PostgreSQL, and exposure to NoSQL databases such as Cassandra and Elasticsearch. The ideal candidate will play a critical role in maintaining, optimizing, and ensuring the high availability of database systems. This position requires working in a 24/7 rotational shift and the ability to handle shifts independently.

The Senior Database Administrator will work closely with developers, ensuring smooth database operations, optimizing queries, and supporting critical database-related requirements.


Key Responsibilities:
  • Database Management:
  • Administer, monitor, and maintain large Oracle 19c and PostgreSQL databases.
  • Manage database configurations, installations, and upgrades, including Oracle 19c patching and upgrades.
  • Ensure optimal performance and scalability of databases through regular performance tuning and troubleshooting.
  • NoSQL Exposure:
  • Work with NoSQL technologies like Cassandra and Elasticsearch, ensuring smooth operations and efficient data storage/retrieval.
  • Performance Tuning and Optimization:
  • Perform regular database health checks and proactive tuning.
  • Optimize SQL queries, indexes, and database design for performance improvements.
  • Backup, Recovery, and High Availability:
  • Implement and manage database backup strategies and disaster recovery solutions.
  • Ensure high availability of databases in production environments.
  • Collaboration with Developers:
  • Collaborate with development teams to provide database support for new application features, schema changes, and query optimizations.
  • Shift Management:
  • Work in a 24/7 rotation schedule, handling shifts as an individual contributor.
  • Proactively resolve any database issues during assigned shifts, ensuring minimal downtime.
  • Security and Compliance:
  • Implement database security best practices, ensuring data integrity and compliance with industry standards.

Skills & Qualifications:
  • Experience:
  • 3-8 years of hands-on experience managing large databases, primarily Oracle 19c and PostgreSQL.
  • Strong knowledge of Oracle 19c database patching, upgrades, and performance tuning.
  • Experience with NoSQL databases such as Cassandra and Elasticsearch is highly desirable.
  • Technical Skills:
  • Expertise in SQL, PL/SQL, and query optimization.
  • Experience in database backup, recovery, and high-availability solutions.
  • Familiarity with database monitoring tools and automated scripts.
  • Problem Solving:
  • Strong analytical skills and the ability to troubleshoot complex database issues independently.
  • Communication:
  • Excellent communication skills to collaborate effectively with cross-functional teams, especially developers.
  • Other:
  • Comfortable with 24/7 rotational shifts.
  • Ability to manage tasks independently and take ownership of database operations during shifts.

Preferred Qualifications:
  • Experience with Oracle RAC, Data Guard, and advanced replication technologies.
  • Familiarity with database monitoring tools like OEM, pgAdmin, or similar.
  • Knowledge of cloud platforms (AWS, Azure, or GCP) and cloud-based databases.


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