Borbala Mester

Edited and enhanced existing Power BI dashboards on short notice to reflect updated metrics, calculations, and visual requirements. Improved dashboard clarity and usability through layout refinements, consistent formatting, and intuitive filtering. Optimized DAX calculations and visuals to ensure fast load times and accurate results. Delivered production-ready dashboards within hours of assignment. Provided brief documentation and live walkthroughs to explain dashboard features and usage to clients.

Enhanced and maintained production Power BI dashboards supporting executive, regulatory, and operational reporting. Implemented business-requested changes to KPIs, calculations, and visuals with a focus on data accuracy. Applied visualization best practices and performance optimization; supported ad hoc reporting requiring rapid delivery.

Developed automated Power BI dashboards to visualize security posture, vulnerability metrics, and analytics across Microsoft 365, Defender, and Microsoft Fabric environments. Validated data accuracy and enforced governance across pipelines to ensure reliable cybersecurity reporting. Integrated datasets using Fabric, ServiceNow, Graph API, Log Analytics, Event Hubs, and SQL. Identified risks, algorithm issues, system maps, and bottlenecks impacting security operations. Conducted structured reviews, documented findings, and provided continuous improvement recommendations. Collaborated with engineering and cybersecurity teams to enhance monitoring, remediation, and detection processes.