Zakaria ELMASTAFI
Senior Data Analyst | Tableau
Salaire / Taux journalier
Paris, France
Freelance
Peut venir sur site
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Expérience de travail
Lead Tableau Developer
European Camping GroupFreelance
janv. 2024 - Présent
2 ans 10 mois
Paris, France
- Led Power BI to Tableau migration, training 20+ analysts, reducing report generation time - Optimized executive dashboards, improving load time by 30% and decision-making efficiency - Supported the Revenue Management Director in optimizing the revenue (620 Millions € annually), resulting in a 10% increase - Led a team of two Tableau developers, providing technical support and guidance to enhance their expertise - Led best practices workshops on Data Visualization within the Data team - Replaced direct connections in Tableau reports with prep flow-generated sources, reducing BigQuery costs by 60% - Developed a Tableau Cloud monitoring dashboard via Metadata API & GraphQL, increasing content visibility
Senior Data & Analytics Consultant
PwC (@Dexia Bank)
sept. 2022 - déc. 2023
1 an 4 mois
Neuilly-sur-Seine, France
Automated financial data production, reducing processing time, ensuring accurate simulations - Designed complex Alteryx workflows, cutting data processing time by 35%, and trained 5 team members - Provided Alteryx training to the Management Control, Accounting, and Financial Strategy teams - Accelerated financial projection processing from 6 to 3 months, improving forecasting accuracy - Developed variance analysis on net interest margin (MNI), increasing clarity in financial reporting
Data & Analytics Consultant
The Information Lab France
janv. 2020 - août 2022
2 ans 8 mois
Paris, France
Healthcare Industry (Pierre Fabre) Pierre Fabre (2 years) : Developed interactive dashboards on Tableau for the Executive Committee - Audited Alteryx/Tableau Server usage, optimizing license allocation and reducing costs by 20% - Led migration to a user-based Tableau licensing model, improving efficiency and user adoption Retail Industry (Tech Data) Tech Data (8 months) : Designed dashboards for French management, steering data-driven strategy alignment - Managed data governance and user access for Tableau Server, improving security and compliance - Trained and coached analysts to strengthen their skills in Tableau Prep and Desktop solutions
Eurolines & isilines
janv. 2018 - déc. 2019
2 ans
Paris, France
Business Data Analyst
déc. 2018 - déc. 2019
1 an 1 mois
Paris, France
Performed the tasks of extracting, processing, analyzing and visualizing data to generate insights: • Conducted ad hoc analysis related to customer knowledge and market trends • Analyzed the performance and profitability of the points of sale • Monitor, analyze competitors and optimize the bus network • Tracked return on investment(ROI) of marketing campaigns
Revenue Management & Pricing Analyst
janv. 2018 - déc. 2018
1 an
Paris, France
Maximized revenue on Benelux and UK routes (about 12M€ yearly Revenue) • Analysed booking patterns, market trends and past bus trips, improving profit margins by 15% • Tracked weekly and monthly sales revenue and prepared revenue forecasts • Built Dashboards to monitor Revenue Management KPIs • Drew the annual budget and pricing strategy for the bus lines of Benelux & UK's perimeter
Industrial Engineer
SEWS-CABIND
mars 2015 - août 2015
6 mois
Casablanca, Maroc
Improved industrial performance by implementing World Class Manufacturing: • Defined and monitored maintenance KPIs • Coordinated production obligations and maintenance requirements. • Analyzed production failures and established preventive maintenance standards
Quality control Engineer
mivisa envases s.a.u.
avr. 2014 - juil. 2014
4 mois
Agadir 80000, Maroc
Optimized the metal cans manufacturing process using the Six Sigma approach : • Applied the DMAIC method. • Identified problems through process analyses and measures. • Undertook measurable and effective actions to enhance operational efficiency
Formation
Udacity
Predictive Analytics for Business - Nanodegree Program
2020 - 2020
1 mois
ESGCI
Master's Degree in Business Development & Marketing
2017 - 2019
2 ans 1 mois
Paris-Pantheon-Assas University
Business Administration
2015 - 2017
2 ans 1 mois
École nationale des sciences appliquées d'Agadir
Industrial Engineer
2012 - 2015
3 ans 1 mois
CPGE - Classes préparatoires aux grandes écoles
MPSI / MP
2010 - 2012
2 ans 1 mois
Licences et certifications
Alteryx Designer Advanced Certified
Délivré le : sept. 2020
Tableau desktop certified associate
Délivré le : mai 2020