Oracle DB & Data Warehouse Engineer

Company Description

Arvato Systems is an international IT specialist that supports major companies in Digital Transformation. We stand for strong industry knowledge, in-depth technology expertise and a clear focus on customer requirements. Working as a team, we develop innovative IT solutions, transition our clients into the Cloud, integrate digital processes, and take on IT systems operation and support. As part of Bertelsmann, we are built on the solid foundations of a German global corporation. At the same time, we rely on our strong strategic partner network with top international players such as AWS, Google, Microsoft and SAP. We make the digital world easier, more efficient and more secure and our customers more successful. We Empower Digital Leaders.

Job Description

We are seeking a highly skilled Application DBA to take ownership of Oracle database operations within a high-performance environment. Your primary focus will be ensuring optimal performance, stability, and scalability for a Java-based application processing a very large volume of individual transactions. This role is deeply technical and requires hands-on experience with Oracle performance tuning, SQL optimization, and Data Warehouse environments.

• You will work closely with development teams to refine database access patterns, improve query efficiency, and support architectural decisions. Performance tuning will be a core responsibility, including SQL/PLSQL optimization, indexing strategies, partitioning models, and JVM-interaction analysis for high-throughput systems.
• You will be responsible for monitoring, backup and recovery strategies, capacity planning, and ensuring compliance with security and high-availability standards (Oracle RAC, Data Guard). A key aspect of the role also includes analyzing and optimizing the existing Data Warehouse architecture to support long-term performance improvements.
• You will join an experienced, collaborative team where your expertise will contribute directly to the stability and growth of a mission-critical system. This role offers the opportunity to work on complex database challenges, influence technical direction, and support large-scale enterprise applications.

Key Responsibilities:

• Administer, maintain, and optimize Oracle databases in a high-performance and 24/7 available environment.
• Analyze and improve database performance for a Java-based application with a very high number of individual transactions.
• Implement tuning measures (SQL, PL/SQL, indexing, ETL processes, data models and partitioning strategies).
• Monitor and ensure database availability, scalability, and stability.
• Collaborate with development teams to optimize database access and query performance.
• Conduct capacity planning and performance testing.
• Ensure backup, recovery, and security concepts are in place.
• Analyze and optimize the existing Data Warehouse architecture to ensure high performance.
• Document architecture, processes, and optimization measures.

Qualifications

Key Responsibilities:

• Administer, maintain, and optimize Oracle databases in a high-performance and 24/7 available environment.
• Analyze and improve database performance for a Java-based application with a very high number of individual transactions.
• Implement tuning measures (SQL, PL/SQL, indexing, ETL processes, data models and partitioning strategies).
• Monitor and ensure database availability, scalability, and stability.
• Collaborate with development teams to optimize database access and query performance.
• Conduct capacity planning and performance testing.
• Ensure backup, recovery, and security concepts are in place.
• Analyze and optimize the existing Data Warehouse architecture to ensure high performance.
• Document architecture, processes, and optimization measures.

Additional Information

What we offer:

We believe in a supportive and rewarding work environment for our employees.

Compensation and Benefits:

• Highly competitive salary.
• Bi-annual bonus based on seniority within the company.
• Meal tickets and various gift vouchers.
• Strong benefits list, including a brand new office, private medical insurance, and 24 vacation days plus a free birthday leave and many more.

Career Growth and Team Environment:

• Certified training possibilities and the opportunity to grow within the Arvato Systems Global Delivery framework.
• Interesting projects and solutions for both the Bertelsmann Group and international external customers.
• A committed and helpful team with a "WE" feeling, promoting a friendly, multicultural, and cooperative environment.
• The possibility to work in mutual trust and to be creative, with the freedom to improve working flows through self-initiative.

Today, Arvato Systems Romania has around 170 employees working in an innovative environment and will constantly grow in upcoming years due to many interesting projects and development areas. Does this sound like your dream job? Then apply here - we look forward to your application, also and especially if you can contribute to the diversity of our company!

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