DBA Database Administrator, Oracle, PostgreSQL, MongoDB
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Job Description
DBA Database Administrator working remotely for a Portuguese retail company. Ensuring secure and efficient database operations while collaborating with development teams.
Responsibilities:
- Ensure that the databases supporting our client's applications operate securely, continuously and with high performance.
- Implement operational processes and proactively recommend improvements aligned with best practices;
- Capacity planning: monitor disk space, memory and CPU usage, planning future hardware/cloud resource needs (e.g., tablespace management, storage sizing);
- Configure and maintain backup and data recovery processes (including drills/simulations);
- Application-level security: manage database user accounts, roles, privileges and access control for application-specific components;
- Query analysis: use tools such as Explain Plan, AWR or database-specific analyzers to diagnose slow queries and propose code fixes;
- Deployment and change management: manage deployment of database schema changes and code updates alongside application releases, typically through CI/CD pipelines;
- System-level security: manage operating system and network security for database servers, and handle access and authentication of users/instances at the system level;
- Collaborate with developers and architects on the logical and physical design of schemas, tables, indexes and views to meet application requirements;
- Improve monitoring and error-prevention methods (e.g., diagnostic or corrective automation);
- Participate in and carry out project activities related to this scope.
Requirements:
- At least 3 years of experience in similar roles.
- Hands-on experience with enterprise databases such as Oracle and/or SQL (on-premises, cloud);
- Hands-on experience with open-source engines like PostgreSQL and MongoDB (on-premises, cloud);
- Management of the software lifecycle for database engines and related components;
- Backup and Recovery (DR/HA): design, implement and test backup and recovery strategies (RTO/RPO), and configure high-availability/disaster-recovery solutions (e.g., Data Guard, Always On, replication);
- Experience working with software development teams to specify relational models, database structures, views and queries;
- Troubleshoot operational issues and perform root cause analysis;
- Availability to participate in a 24x7 on-call rota;
- Degree in Information Systems, Computer Science or a related field.
Benefits:
- Not specified.
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