Senior Tableau Developer

We are looking for an experienced Senior Tableau Developer to join a Data & Analytics team on a contract basis. The person in this role will be responsible for designing, developing, validating, and releasing high-quality Tableau dashboards for marketing and commercial business intelligence products. Your tasks Translate business needs into clear technical dashboard requirements and visual concepts Design data model specifications and cooperate closely with Data Engineering teams Build intuitive, scalable Tableau dashboards aligned with modern UI/UX standards Optimize dashboard performance for large datasets using Tableau best practices Validate dashboard logic and data accuracy using advanced SQL Support deployment across Development, Staging, and Production environments Lead UAT activities and secure final business sign-off Requirements At least 6 years of experience in BI/Tableau development Expert knowledge of Tableau Desktop, Tableau Cloud/Server, and Tableau Prep Strong SQL skills, including window functions, CTEs, and complex joins Experience with performance optimization, calculated fields, parameters, and row-level security Good understanding of data warehousing, dimensional modeling, and Star/Snowflake schemas Previous work with enterprise Dev/Prod publishing pipelines Very good English communication skills and a consultative approach to stakeholders Working 2 days per week from the office in Cracow Nice-to-have requirements Experience with user acceptance testing (UAT) and leading UAT sessions