Responsibilities Gather and document business requirements through stakeholder interviews, workshops, and ongoing communication.  Translate business needs into functional specifications and user stories with clear acceptance criteria.  Develop Power BI reports and dashboards based on documented requirements.  Create and maintain Power Query transformations for data preparation and cleansing.  Implement row-level security (RLS) based on business access requirements.  Coordinate user acceptance testing (UAT), collect feedback, and manage iterative improvements.  Bridge communication between business stakeholders and the technical development team.  Maintain documentation including process flows, data dictionaries, and report specifications.  Support report deployment, workspace management, and scheduled refresh configuration in Power BI Service.  Participate in Agile ceremonies: sprint planning, backlog refinement, demos, and retrospectives.  Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose a medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications You have a university degree in computer science, mathematics, physics or similar field. Proven development experience using Power BI Desktop, Databricks, DAX-Code, Power Query M. Solid DAX fundamentals: measures, calculated columns, basic time intelligence. Report and dashboard design with focus on usability and visual best practices. Ability to elicit requirements through stakeholder interviews and workshops. Documenting functional and non-functional requirements. Creating user stories with clear acceptance criteria. Excellent communication skills in English and Polish. Open to working in a hybrid mode – one day per month at the office in Katowice or in Kraków.  About Cluster ReplyCluster Reply is the Reply Group company specialising in consulting and system integration of Microsoft technologies. As a Microsoft partner, Cluster Reply is active in Germany, Austria and Switzerland and works within the Reply network with sister companies in Brazil, Great Britain, Italy as well as the USA. The company focuses on innovation and supports customers in their digital transformation. The solutions range from on-premises to cloud applications in the areas of modern workplace and security, business applications, applications and infrastructure as well as data and artificial intelligence.