Erika Fonseca

Data Science and Business Consultant

Moves to Vallauris, Paris, Vallauris, Lyon

  • 43.5798
  • 7.05321
  • Indicative rate €125 / day
  • Experience 7+ years
  • Response rate 100%
  • Response time 24h
Propose a project The project will only begin when you accept Erika's quote.

Availability not confirmed

Propose a project The project will only begin when you accept Erika's quote.

Location and geographical scope

Vallauris, France
Can work in your office at
  • Vallauris and 50km around
  • Paris and 100km around
  • Vallauris and 100km around
  • Lyon and 100km around


Project length
  • ≤ 1 week
  • ≤ 1 month
  • Between 1-3 months
  • Between 3-6 months
  • ≥ 6 months
Company size
  • 1 person
  • 2 - 10 people
  • 11 - 49 people
  • 50 - 249 people




  • Anglais

    Full professional proficiency

  • Portugais

    Native or bilingual

  • Français

    Limited working proficiency

  • Espagnol

    Limited working proficiency

Skills (6)

Erika in a few words

I am here to deliver perfect-quality, reliable, and 100% consent work in research and data science field. I am highly motivated and dedicated to my clients, so you can reach me at any time.

I am currently enrolled at an Applied MSc in Data Science and Artificial Intelligence program, and I'm also gradute in Finance and Business Management, with Engineering Bachelor's degree. My main area of expertise is quantitative research, with orientation towards marketing, finance and supply chain. I have got years of experience working for clients in various industries, such as pharmaceutical, consumer business, utilities, and economy.

I can help you with the following:

- optimization
- analyzing the data selecting the most appropriate model
- writing reports

- descriptive statistics, correlations, partial correlations
- multiple/logistic, LDA
- regression trees /random forest (bagging, boosting)
- nonparametric statistics (Chi-Square, Cohen's kappa, Mann-Whitney U-Test, Wilcoxon Signed-Rank Test, Kruskal-Wallis Test, Fridman Test)
- time series analysis
- survival analysis

Artificial Intelligence
- computer vision

I will send you the output and syntax. I will also write detailed interpretations with graphs/tables appropriate for the publication. Report may be in form of Word document or Power Point presentation.

All the work is done in accordance to the ethical research and professional guidelines.
Reliability, quality, and confidentiality of the customer information are guaranteed.



Cosmetics & Fashion

Planning Manager

São Paulo, Brésil

July 2013 - May 2019

 Implementation of Tableau for the Sales Team to improve analytics and give more focus on strategic
and tactical plans, building practical dashboards to the different team hierarchy levels.
 Reduced 4 days in accounts receivable, making statistical analysis of financial data and redesigning
processes. Made use of decision trees to help the teams understand their influence on the result
and developed a simulator to visualize the impact of initiatives of action plans.
 Improved controls for contract management, providing a complete review of the process and
defining a workplan to reduce losses due to non-compliance of contractual clauses.
 Developed a model to compare operational results in different states of the country to help in
decision of a distribution center location.\
Increased forecast accuracy by 10%, implementing a new S&OP process implementing new
models for demand analysis, using times series analysis combined with projection of
merchandising and marketing campaigns.
 Development of an MRP (material resources planning) to help the team integrate data from the
ERP and from the suppliers in order to create purchase orders and sequence production lines,
which helped to reduce inventory days in 20% over two years.
 Conducted the implementation of ZBB (zero-based budgeting), developing tools to analyze and
consolidate data, and leading projects that resulted in 30% of savings on the logistics spend.
 Improvement of business controls, leveraging the use of ERP (TOTVS) system; and improvement
of integration with third party.
 Implemented dashboard of KPI to monitor operational performance and budget.

Deloitte Conseil - Deloitte Organisation

Consulting & Auditing


São Paulo, Brésil

January 2008 - June 2013

 Delivered cost reduction projects, preparing analysis based on internal and external data sources,
benchmarking, and developing action plans with customer teams.
 Conducted process redesign and risk assessment for Supply Chain (Purchase, PPC, Maintenance,
Production and Logistics) and Finance (Budgeting, Accounting and Taxes) to increase efficiency
and reduce costs.
 Development of business cases for: site location, operational outsourcing, expansion of product
 Managed system implementation projects, like ERP and MRP, using PMI methodology, for big
companies involving more than 50 professionals.
 Collaborated in strategic planning and portfolio redesign projects, collecting data, conducting
analysis and preparing financial models.
 Software selection through definition of requirements with the customer team, design of RFP,
assessment of proposal and performance in POC.
 Design of use cases and test cases to address business demands.


charter modal image

Success is a team effort

Contribute to this success and the community's professionalism by signing the Freelancer Code of conduct

Sign the code