Nikolaos C.

With a background in Mathematics & Computer Science and over a decade of experience, I deliver advanced Power BI solutions that drive strategic decisions. My technical and leadership expertise ensures high-quality, tailored outputs for diverse business needs. * Advanced data modeling and DAX for complex, dynamic reports. * Expertise in IBCS principles for clear and effective data communication. * Can use Python, Deneb, and SVGs in reports, for compelling storytelling. * Proficient in ETL and integrating data from SQL, SharePoint, and more. * Experienced in training 200+ professionals through global workshops. I’ve led impactful transformations, helping organizations maximize their data potential: * Consistent delivery of 95% CSAT-rated reporting solutions. * Leading the development of KPI dashboards following ISO compliance & in-house quality standards. * Directing Power BI reporting for Teleperformance GR across local, regional, and global levels. * Coaching and supporting 60+ analysts, enhancing their Power BI skills * Designing and maintaining dynamic dashboards, integrating Python and custom visuals to meet diverse client needs. * Spearheaded the transition to Power BI for a major healthcare provider, working directly with the CEO and senior managers.