Senior Oracle Database Administrator

Senior Oracle Database Administrator Salary: Up to 140-160 PLN net + VAT / hour Contract: B2B Work Model: Hybrid (1 day remote / 4 days office) – working from the office in Gdańsk or Warsaw The Client: A major enterprise in the banking industry . You will be joining their core continuous service project to ensure the high availability, integrity, and performance of business-critical, Oracle-based applications. The Role: We are looking for a highly independent, problem-solving Senior DBA with a decade of experience. You will take charge of enabling new features across the client's environments, handling everything from implementation and integrity testing to post-rollout troubleshooting and immediate rollback execution for mission-critical systems. Expectations & Tech Stack: Experience: 10+ years of experience managing Oracle Databases (12c to 19c), heavily focused on RAC and Data Guard. Core Tech: Deep, hands-on experience in a production RAC (ASM) 19c environment. Tools: Mastery of Oracle management tools (Data Guard, RMAN, Data Pump), Oracle GoldenGate (OGG Microservices, downstream databases), and OEM architecture. OS & Infrastructure: Solid Linux/Unix OS experience (managing processes, load, daemons) and a good understanding of storage. Problem Solving: Strong background in FSFO (Fast-Start Failover) problem solving, observers, and handling various Data Guard / RAC Disaster Recovery issues. Processes: Familiarity with Change and Incident management, Oracle SR handling, and architecture design principles. Language: Fluent English is mandatory. Your Responsibilities: Preparing prePROD environments to enable FSFO, executing Switchover/Failover tests, and troubleshooting FSFO issues. Handling all Data Guard operations: syncing, resolving errors, and rebuilding standbys as needed. Managing databases at the PDB/CDB level: creating new DBs, migrating old PDBs to new containers, and handling service validation. Setting up and managing Oracle GoldenGate (OGG) Microservices and OEM. Executing DB-level patching and necessary OS-level tweaks. Rolling out changes to PROD, providing post-change support, and executing immediate rollback plans for business-critical databases if an implementation fails. Benefits: Private medical care, Life insurance, Multisport card, and teambuilding events. Culture: Transparent working conditions in an international, collaborative environment driven by a Swedish organizational culture.