Database Developer

3 days ago

Hyderabad, India Mirabel Technologies Full time

Job Summary

We are seeking a skilled and proactive PostgreSQL Developer / Administrator to join our team in Hyderabad. The ideal candidate will have strong experience in both database development and administration, with a focus on performance tuning, high availability, and operational efficiency in production PostgreSQL environments—both self-hosted and cloud-based (AWS Aurora).

We are specifically looking for a candidate with hands-on experience in migrating databases from Microsoft SQL Server to PostgreSQL, including schema conversion, data transformation, and query translation.

Key Responsibilities

  1. Development:

  2. Design and optimise complex SQL queries, stored procedures, functions, and views

  3. Work with PostgreSQL-specific data types like JSONB, HSTORE, etc.
  4. Implement scalable data models, schemas, and version-controlled migrations

  5. Collaborate with development teams to integrate business logic into the database layer

  6. Administration:

  7. Install, configure, and maintain PostgreSQL databases on VMs and AWS Aurora

  8. Handle backups, replication (streaming/logical), recovery (PITR), and patching
  9. Perform query tuning, indexing, and configuration optimisation (e.g., work_mem, shared_buffers)
  10. Monitor performance using tools such as pgAdmin, pgBadger, CloudWatch, Prometheus, and Grafana
  11. Manage user roles, permissions, and ensure database security and compliance
  12. Support CI/CD integration and automation for database changes
  13. Troubleshoot and resolve database incidents in production environments
  14. Lead or support migration projects from MS SQL Server to PostgreSQL, ensuring data accuracy and performance

Primary Skills

  • Strong hands-on experience with PostgreSQL development and DBA tasks
  • Proficiency in SQL and PL/pgSQL
  • Experience in migrating databases from Microsoft SQL Server to PostgreSQL
  • Deep understanding of query tuning, performance analysis, and indexing strategies
  • Experience with AWS Aurora PostgreSQL and PostgreSQL configuration tuning
  • Familiarity with Linux/Ubuntu CLI and shell scripting
  • Experience with tablespaces, partitioning, replication, and high availability setups
  • Hands-on with backup tools like pg_dump, pg_basebackup, and AWS-native solutions
  • Ability to integrate PostgreSQL into CI/CD pipelines

Secondary Skills (Good to Have)

  • Exposure to MS SQL Server, MySQL, or Oracle
  • Familiarity with MongoDB or other NoSQL databases
  • Understanding of RDBMS vs NoSQL use cases
  • Experience with database migration tools such as pgLoader or AWS DMS

Tools & Platforms

  • Version Control: GitHub, Bitbucket
  • Monitoring: pgBadger, Prometheus, Grafana, CloudWatch
  • Project Management: JIRA

Preferred Qualifications

  • Bachelor's or Master's degree in Computer Science, IT, or a related field
  • Certifications in PostgreSQL, AWS, or Linux administration are a plus
  • Experience with Agile/Scrum and DevOps practices
  • Excellent communication, analytical, and problem-solving skills

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