Oracle Database Administrator (DBA) – 100% Remote (Portugal)

We are looking for an experienced Oracle DBA to join a project in the healthcare sector . The focus is on Performance & Tuning, Backup & Recovery, Oracle RAC, ASM, Data Guard and data migration . You will be responsible for the administration, availability, performance, security and evolution of Oracle Database platforms in mission-critical, high-availability environments. What you'll do Administer, maintain and support Oracle databases (11g, 12c, 19c and above) in on-premises and/or cloud environments Monitor databases proactively, ensuring high availability, performance and stability Analyse performance and carry out SQL and PL/SQL tuning (AWR, ASH, ADDM, statistics, execution plans) Implement and manage backup and recovery strategies (RMAN), including regular restore tests and Disaster Recovery plans Administer and troubleshoot Oracle RAC environments Manage ASM (Automatic Storage Management) Configure and maintain Oracle Data Guard (physical/logical standby, switchover, failover) Plan and execute data migrations and version upgrades Support development teams in optimising SQL and PL/SQL code Apply security best practices, including user, role and privilege management Create and maintain technical documentation and operational procedures Support production environments, including handling critical incidents What we're looking for 5+ years of proven experience as an Oracle DBA Strong knowledge of: Oracle Performance & Tuning RMAN (backups and restores) Oracle RA