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.
Requirements:
- Experience as an Oracle DBA and administering Data Warehouse systems (Oracle).
- Expert knowledge in performance tuning and optimization (e.G. SQL, indexing strategies).
- Experience with Java-based applications and their database interactions.
- Knowledge of Oracle RAC, Data Guard, partitioning, and high availability.
- Proficiency with monitoring tools and performance analysis (e.g., TOAD).
- Understanding of transaction management and large data volumes.
- Strong communication skills and team orientation.
- Experience with ETL tools and reporting systems.
- Fluent English language skills
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.
