Bartłomiej Witek

• Developed interactive Power BI dashboards, enhancing data visualization for business clients. • Transformed complex datasets into actionable insights, driving informed decision-making. • Implemented governance and Row-Level Security (RLS) measures to ensure data integrity and confidentiality. • Collaborated with cross-functional teams to align BI solutions with client objectives, resulting in increased client satisfaction.

• Resolving issues related to SQL databases for clients (DQL, DML, DDL, DCL), troubleshooting and optimization • Designing PowerShell scripts to automate and optimize daily tasks, increasing productivity. • Technical support for ERP environments, managing and maintaining systems for end clients, guaranteeing operational continuity and effectiveness. • Configuring Windows Server, SQL, and Power BI dashboards for clients. • Ensuring the security of client environments for Power BI projects and databases

• Resolving issues related to SQL databases for clients (DQL, DML, DDL, DCL), troubleshooting and optimization • Designing PowerShell scripts to automate and optimize daily tasks, increasing productivity. • Technical support for ERP environments, managing and maintaining systems for end clients, guaranteeing operational continuity and effectiveness. • Configuring Windows Server, SQL, and Power BI dashboards for clients. • Ensuring the security of client environments for Power BI projects and databases

• Monitoring performance and resolving issues related to on-premises Exchange servers. • Managing Microsoft Exchange servers using PowerShell, implementing automation and optimization. • Developing applications that simplify daily tasks for employees using Power Platform. • Working with Power BI to create dashboards, custom tables with PowerQuery and DAX. • Analyzing client data for new Power BI charts and graphs with own calculated values