Hayley Holtje Email & Phone Number

Amsterdam, North Holland, Nl

Passionate about making the right data available to the right audience at the right time whilst considering data security. ✦ Manage an analytics team responsible for using data and analytics to understand marketing effectiveness, market analysis across 3 business units within Elsevier✦ Focus on growth and career development of team members, guiding them towards achieving their professional goals.✦ Specialize in integrating diverse data sources using a variety of tools✦ Developed and automated a comprehensive KPI dashboard utilizing over 20 different data sources, providing valuable insights to senior leadership.✦ Spearhead advanced analytics initiatives, including customer churn prediction.✦ Align global reporting and implement scalable processes for different geographies & languages.✦ Surface data to address critical business needs and develop resources to enhance data literacy across the organization.

Amsterdam, North Holland, Nl

Fort Washington, Pennsylvania, Us

- Audited 3rd party data vendors to determine added value to customer database; selected top vendor, facilitated buying data elements and adding to the database for segmentation and personalization. - Created customer journey mapping to inform marketing strategies and segmentation- Key part of implementation of new audience selection tool (ActionIQ)- Built direct mail model which lowered cost per order by $150- Responsible for all reports and analytics for the marketing department- Evaluated and helped select TV attribution tool and, using the platform, provided data-driven TV buying recommendations - Regularly presented results, findings and recommendations regarding customer behavior, suggestions to increase revenue, KPIs and advanced analytics across all verticals of Nutrisystem.

Fort Washington, Pennsylvania, Us

Reston, Va, Us

- Built international demographic models based off PC data to ascribe device level demographics, models were used to get population level views. - Led session assignment research including how to sessionize data- Designed a process to calculate a 200k x 200k distance matrix through R in hadoop. - Created customer care survey and designed a process to link panel and survey data to create a fusion model for a variety of demographics. - Maintained code and process for the UK which assigned population site level demographics from a small panel. This lead to comScore being an official 2012 Partner for UK Online Audience Measurement. - Owned methodology and process for 10+ international demographic models. Restructured the model framework including extensive testing and quality assurance.Additional Experience* Managed summer intern: providing guidance and leadership* Inaugural member of the comScore careS team which is an employee-driven volunteer initiative with monthly events designed to help the local community.

Reston, Va, Us

Blacksburg, Va, Us

Consultant, collaborator, research assistant, helped with grading and tutoring.

Blacksburg, Va, Us

Provided statistical advice on a variety of research projects for non-statisticians who sought guidance. Participated in walk-in consulting assisting researchers with their data and respective analysis.

Blacksburg, Va, Us

* Conducted statistical research on data from the National College Athletic Association (NCAA) basketball tournament. * Evaluated the usefulness of the RPI statistic and its correlation with selection of teams for the tournament.

M.S., Statistics

Bachelor Of Science, Statistics

Education record