Requirements:Mandatory: Cognos.Proven experience as a Developer specializing in building data warehouses in Oracle database environments.Strong proficiency in Oracle SQL and PL/SQL programming languages.Hands-on experience with data modeling tools (e.g., Oracle SQL Developer Data Modeler, ERwin, etc.).Extensive knowledge of ETL tools and processes, preferably with experience in Oracle Data Integrator (ODI).Experience with performance tuning and optimization of Oracle databases and ETL processes.Preferred Qualifications:Oracle certification(s) related to data warehousing and business intelligence.Experience working with large-scale data warehousing projects in enterprise environments.Familiarity with other BI tools and technologies (e.g., Tableau, Power BI, QlikView, etc.).Knowledge of dimensional modeling and data warehousing best practices.