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Oracle Database Administrator

Warsaw, PolandFull-timePosted Oct 9, 2026

Job description

We are looking for an Oracle Database Administrator to join an international DBA team supporting large-scale, high-availability database environments within the payments domain. The role focuses on maintaining database stability, performance, and scalability across production systems operating in distributed architectures.

This is a hands-on DBA role requiring strong Oracle expertise, production support experience, and practical knowledge of performance tuning and optimisation in enterprise environments.

Responsibilities

  • Perform database and SQL performance tuning
  • Design, implement, and maintain Oracle database instances
  • Conduct root cause analysis of production database issues
  • Monitor, maintain, and support database environments on a daily basis
  • Work with development teams on data models and database design
  • Implement performance and resource optimisation solutions
  • Support high availability and reliability of production systems Requirements
  • Minimum 3+ years of experience as an Oracle DBA
  • Hands on experience with Oracle databases on Unix/Linux environments
  • Strong knowledge of database performance tuning and optimisation
  • Experience supporting production environments and resolving issues
  • Good understanding of distributed systems and database architecture
  • Strong SQL knowledge and database development understanding
  • Fluent English communication skills Nice to have
  • Experience with high volume OLTP systems
  • Experience with large scale databases (terabyte level)
  • Knowledge of Data Guard replication
  • Strong understanding of Oracle best practices such as schema design, indexing, and query optimisation
  • Experience working in global or distributed teams Benefits
  • Solid, competitive salary
  • Work in multilingual, multinational and multicultural environment on international projects
  • Comprehensive healthcare
  • Long-term B2B contract with stable project pipeline

Description copied from Madiff's careers page. Read the full posting before you apply.

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