Senior Oracle ETL/BI Developer - 20454

Veritaz is a leading IT staffing solutions provider in Sweden, committed to advancing individual careers and aiding employers in ensuring the perfect talent fit. With a proven track record of successful partnerships with top companies, we have rapidly grown our presence in the USA, Europe, and Sweden as a dependable and trusted resource within the IT industry. Job Overview Role Summary Our client is seeking a Senior Oracle ETL/BI Developer for a consulting assignment focused on developing and optimizing complex data integration and business intelligence solutions. The role requires deep expertise in Oracle Database architecture, advanced SQL development, custom-built ETL processes, and dimensional data modelling. The consultant will translate high-level business requirements into functional, maintainable, and high-performing data solutions within a complex enterprise IT environment. Key Responsibilities Design, model, develop, and test complex ETL processes using custom-built code rather than dedicated ETL platforms. Translate high-level or simplified business requirements into robust, maintainable technical implementations. Develop advanced Oracle SQL using capabilities such as analytic functions and hierarchical queries. Optimize Oracle Database performance through indexing, partitioning, query tuning, and related optimization techniques. Create and maintain dimensional data models supporting business intelligence and analytical use cases. Work effectively within a complex enterprise technology landscape, potentially involving subscription-based business models. Use Git to manage source code and support controlled development workflows. Contribute to development and operational activities in Unix/Linux-based environments. Technical Stack & Requirements Database: Extensive knowledge of Oracle Database architecture, functionality, indexing, partitioning, and performance tuning. Query development: Strong proficiency in Oracle SQL, including analytic functions and hierarchical queries. Data integration: Proven ability to design, implement, and test complex custom-coded ETL processes. Data modelling: Experience with dimensional data modelling for BI and analytics solutions. Oracle ecosystem: Knowledge of Oracle REST Data Services and Oracle Enterprise Manager. Workflow orchestration: Knowledge of Apache Airflow. Operating systems: Basic experience working in Unix/Linux-based environments. Version control: Practical experience using Git. Qualifications & Experience The successful consultant will have senior-level experience in Oracle-based ETL and BI development, supported by strong business analysis capabilities. Previous work in subscription-based industries with complex IT environments—such as telecommunications, banking, or insurance—is required. The role calls for the ability to understand business needs, refine incomplete or high-level requirements, and convert them into reliable and maintainable data solutions.