Senior DBA

GCS Recruitment; Dublin; On-site; EUR 90,000 - 120,000; Full time

Job summary

GCS Recruitment seeks a Senior Oracle/PostgreSQL DBA to own and optimize critical databases in AWS. You will manage Oracle 19c and PostgreSQL across production environments, implementing high availability, performance tuning, and robust disaster recovery.

You will collaborate with Engineering, DevOps and Infrastructure teams to automate tasks, support CI/CD, and enhance cloud-based database operations.

Qualifications

• Experience managing Oracle 19c and PostgreSQL databases in production environments.
• Strong knowledge of AWS services (RDS/Aurora/EC2) and cloud-based DB deployments.
• Proficiency in automation, scripting, and CI/CD pipeline support.

Responsibilities

• Manage and support Oracle and PostgreSQL databases in production environments.
• Perform installations, upgrades, patching and maintenance of databases.
• Tune performance, optimise queries and troubleshoot complex DB issues.
• Design high-availability and disaster recovery solutions.
• Manage backups, recovery procedures and replication.
• Monitor database health, availability and performance.
• Respond to critical incidents and perform root cause analyses.
• Collaborate with Engineering, DevOps and Infrastructure teams.
• Drive automation using scripting and cloud tech.
• Contribute to CI/CD and infrastructure improvement initiatives.

Skills

Oracle

PostgreSQL

Automation

Tools

AWS

Terraform

Python

PowerShell

AWS CLI

CloudWatch

Job description

Senior Oracle/PostgreSQL DBA (AWS)

I'm currently working with a well-established technology organisation seeking an experienced Senior Database Administrator to join their Managed Services function.

This is an opportunity to take ownership of critical Oracle and PostgreSQL database environments hosted within AWS, supporting both internal and client-facing systems. The role is focused on ensuring high availability, performance, scalability and reliability across a large-scale production environment.

The Role

• Managing and supporting Oracle and PostgreSQL databases in production environments
• Database installation, upgrades, patching and maintenance
• Performance tuning, query optimisation and troubleshooting complex database issues
• Designing and supporting high-availability and disaster recovery solutions
• Managing backups, recovery procedures and replication environments
• Monitoring and improving database health, availability and performance
• Supporting critical incidents and carrying out root cause analysis
• Working closely with Engineering, DevOps and Infrastructure teams
• Driving automation using modern scripting and cloud technologies
• Contributing to CI/CD and infrastructure improvement initiatives

Technical Environment

• Oracle 19c
• PostgreSQL
• AWS (RDS, Aurora, EC2)
• CloudWatch
• Python
• PowerShell
• AWS CLI
• Terraform