PostgreSQL DBA (with AWS)

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As a PostgreSQL DBA/Data Reliability Engineer II, you will play a crucial role in developing, optimizing, and managing several large data lakes and data warehouses, comprising data from multiple disparate sources.

Responsibilities:

• Proactively monitor PostgreSQL RDS instances for performance, availability, and resource utilization (CPU, memory, storage, connections) using established monitoring tools (e.g., CloudWatch, Prometheus).
• Assist in identifying performance bottlenecks in PostgreSQL RDS. Apply basic performance tuning techniques like reviewing query execution plans, adding missing indexes, and recommending parameter adjustments.
• Monitor the health and performance of Debezium and Kafka Connect connectors, identifying and troubleshooting basic issues related to data capture and delivery.
• Monitor Apache Nifi data flows for errors, backpressure, and performance issues. Assist in troubleshooting and resolving common Nifi flow failures.
• Provide support for data related issues and participate in root cause analysis.
• Monitor the execution of Apache Airflow DAGs, identify failed tasks, and troubleshooting and re-runs.
• Develop and maintain automation scripts and infrastructure as code (IAC) templates (e.g., using Crossplane, Terraform) to automate routine database tasks, deployments, and updates.
• Participate in on-call rotations to respond to database-related incidents and perform troubleshooting and root cause analysis.
• Assist in implementing and maintaining security best practices for cloud databases, including access controls, encryption, and compliance with regulatory requirements.
• Regularly audit and assess database security configurations.
• Configure and manage database backup and recovery strategies to ensure data integrity and availability in case of failures or data loss.
• Analyse database query performance and collaborate with developers to optimize SQL queries and schemas.
• Participate in continuous improvement initiatives to enhance the reliability, scalability, and performance of cloud databases.
• Assist in the design and optimization of database schemas for cloud environments.
  
  

Skills:

• Familiarity with data pipeline concepts and technologies like Debezium, Kafka Connect, Apache Nifi.
• Basic understanding of Amazon Redshift and S3.
• Exposure to Apache Spark for data processing.
• Basic understanding of Apache Airflow for workflow orchestration.
• Strong SQL scripting skills for querying and basic data manipulation.
• Familiarity with scripting languages (e.g., Python, Bash) is a plus.
• Knowledge of database security best practices, including access controls, encryption, and compliance with regulatory requirements (e.g., GDPR, HIPAA).
• Having ‘AWS Certified Database - Specialty'' certification is a plus
  
  

Experience and Qualifications:

• Bachelor''s degree in computer science, Information Technology, or a related field.
• 5-7 years of experience in database administration, with a focus on PostgreSQL.
• 2-4 years of hands-on experience with PostgreSQL RDS.