Senior Oracle Database Administrator

The client is an American multinational company in the fintech industry Key details: Location: 100% on-site from the Warsaw office Rate: 120–160 PLN/hour net + VAT Job type: B2B contract Duration: 6 months + extensions Recruitment process: 1 or 2 stages English: B2/B2+ Luxmed, MultiSport, equipment provided by the client Role Overview The International DBA Team, part of the Oracle Database organization, is responsible for ensuring high performance, availability, and reliability of database environments across the international region. As a Senior Database Administrator, you will deliver robust and scalable Oracle database solutions, support distributed service architectures, and collaborate with global engineering teams to define and implement enterprise-wide database standards. The main task in this position is: - Perform database and application (SQL) performance tuning - Design, develop, implement, and maintain Oracle database instances - Conduct root cause analysis for production database issues - Execute daily database maintenance, monitoring, troubleshooting, and problem resolution - Provide internal customer and development team support Review, design, and develop data models in collaboration with application development teams - Test, validate, and implement performance and resource optimization solutions - Convert logical data models into physical database designs Requirements: - Bachelor’s degree in Computer Science or an equivalent combination of education and professional experience - 4 years of Oracle DBA experience on Unix/Linux environments, including: - Minimum 2 years of hands-on database administration - At least 1 year of hands-on database development projects - Strong knowledge of Oracle database technologies, tools, and development - Proven ability to work effectively with Development Engineering and cross-functional teams - Fluent written and spoken English Preferred Qualifications: - High motivation and ability to solve problems efficiently - Strong troubleshooting and rapid resolution skills - Ability to manage multiple tasks and changing priorities - Proven capability to build and maintain strong working relationships with DBA and application teams - Experience with: High-volume OLTP database systems, Terabyte-scale databases, Oracle Data Guard replication solutions - Solid understanding of Oracle DBA best practices, including: Schema management, Index optimization, Effective use of optimizer hints - Advanced query optimization and database tuning skills Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361