Arbetsbeskrivning

Role: DB Engineer

Seniority level: Senior

Location: Warsaw, Poland

Remote: 75%

Assignment period: 01 Aug 2025 – 31 Dec 2025

Assignment Description

We are seeking an experienced Database Engineer to join an international project supporting Oracle-based applications. The role involves ensuring the continuity, reliability, and performance of database environments through design, implementation, testing, troubleshooting, and maintenance of mission-critical systems.

This position is ideal for someone with deep technical expertise in Oracle RAC and Data Guard, as well as experience working in high-availability and disaster recovery environments.

Responsibilities

• Prepare pre-production environments to enable Fast-Start Failover (FSFO)
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• Synchronize Oracle Data Guard and resolve related issues
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• Rebuild standby databases when required
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• Create and validate database services, including on PDB level
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• Create new databases and migrate existing PDBs to new containers
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• Activate FSFO and troubleshoot FSFO-related problems
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• Perform switchover and failover tests
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• Apply database-level patches
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• Make system-level changes related to Unix processes, load management, and daemon configuration
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• Handle RAC issues in coordination with disaster recovery planning
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• Work with Oracle GoldenGate (OGG) microservices and OEM setup
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• Implement validated changes in production environments

Requirements

• Minimum 10 years of experience managing Oracle Database (versions 12c to 19c)
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• Strong practical knowledge of Oracle RAC, Data Guard, RMAN, and ASM in production environments
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• Experience with Linux operating systems
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• Proficiency with Oracle tools: Data Guard, RMAN, Data Pump
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• Proven ability to create and manage PDB services
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• Hands-on experience with Oracle GoldenGate microservices and downstream configurations
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• Familiarity with FSFO setup and troubleshooting, observers
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• Knowledge of enterprise storage and database architecture design principles
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• Understanding of IT processes (change management, incident handling)
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• Experience with Oracle OEM architecture and metric management
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• Ability to work independently and collaboratively in a team
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• Proficient in English