guillaume vigier
@guillaumevigier
Accomplished data expert specializing in big data and analytics.
What I'm looking for
I am an accomplished and integrity-driven data expert with a strong background in big data and analytics. With a Master of Science degree in Mathematics from the University of Bordeaux, I have honed my skills in statistical analysis, machine learning, and data warehousing. My career has been marked by significant achievements, including the development of predictive models with high accuracy rates and the implementation of data solutions that drive business objectives.
Throughout my professional journey, I have led teams in the development of data warehouses and analytics strategies across multiple markets. My experience includes serving as Chief Data Officer at Digicel Group, where I oversaw the creation of seven standardized data warehouses and implemented innovative data processing solutions. I am passionate about leveraging technology to enhance customer experiences and generate new revenue streams through data-driven insights.
Experience
Work history, roles, and key accomplishments
Data Consultant
Digicel Panama
Jun 2021 - Jun 2022 (1 year)
Improved data warehouse processes, reducing processing time by threefold. Migrated local data warehouse to Oracle Cloud and supported digital transformation projects, enhancing operational efficiency.
Data Consultant
Noritex SA
May 2021 - Jun 2022 (1 year 1 month)
Developed sales prediction and color extraction models achieving high accuracy rates. Utilized NLP for product categorization, contributing to enhanced marketing strategies.
Chief Data Officer
Digicel Group
Apr 2005 - May 2021 (16 years 1 month)
Led the development of a group-wide data mining and analytics strategy, overseeing the creation of 7 data warehouses across 31 markets. Implemented automatic data processing and reconciliation, achieving a less than 1% difference in data accuracy. Developed predictive models for churn and revenue optimization, significantly enhancing business operations.
Data Warehouse Manager
Orange Dominicana
Nov 2002 - Sep 2005 (2 years 10 months)
Led a team to build a data warehouse in 3 months, implementing automatic ETL processes and achieving near real-time data availability. Developed customer lifetime models and advanced statistical analyses to support business objectives.
Education
Degrees, certifications, and relevant coursework
University of Bordeaux I
Bachelor of Science, Mathematics and Computer Science
Achieved a Bachelor of Science degree in Mathematics and Computer, emphasizing the integration of mathematical theories with computer science principles.
University of Bordeaux I
Diploma, Mathematics and Computer
Earned a Diploma in Mathematics and Computer, providing foundational knowledge in both fields.
University of Bordeaux I
PhD of Science, Numerical Analysis
Grade: Honor 2.2
Completed a PhD of Science in Numerical Analysis, focusing on advanced computational techniques and their applications.
University of Bordeaux I
Master of Science, Mathematics
Grade: Honor 2.2
Completed a Master of Science degree in Mathematics, focusing on advanced mathematical concepts and applications.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
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