Jawhar Slim

Leader of Reckitt's digital measurement across EUANZ markets, optimizing media investment for top 50 brands resulting to up to x1.5 incremental Net Revenue ROI vs BAU.

Expanded Reckitt's data transformation journey across 14 markets globally and 6 brands within 18 months, and exceeding adoption KPI by 25%

Putting together actionable insights and delivering to marketing directors MMX Results in a rebust and interactive way using PowerBI. End to end ownership engaging with crossfunctional stakeholders to gather the necessary requirements to perform the measurement and insuring inline with the project timelines.

Performed linear and non linear media models to capture and measure media efficiency for 12 markets.

Played a key role in migrating from H2O-based cloud infrastructure to an in-house platform for running data science attribution models —cutting annual costs by over £120K while preserving performance and scalability. Led 35 post-campaign analyses per year, transforming data insights into compelling business narratives for global scaling across 25 strategic business units. Validated and enhanced Data Science models for media attribution (online & offline), significantly improving the accuracy of sales impact measurement and strengthening data maturity and ad tech capabilities—leading to more precise audience segmentation and advanced personalization strategies.

Drove data science operations across three Eastern European markets in collaboration with Nielsen, BCG, and Artefact— that influenced a portfolio-wide media investment strategy, leading to a 15% increase in marketing ROI and 8% uplift in baseline sales in these key markets.

Engaged senior stakeholders across marketing, sales, and analytics to align on data-driven initiatives, accelerating adoption of advanced analytics tools and driving a 30% increase in utilization of regional reporting platforms.