
Rafael Saraiva
Statistic Intern

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About me
Analytics | Statistic | Storytelling | Python | SQL | Data Science | Data | BI
Education

Microsoft Virtual Academy
2018 - 2018Azure Machine Learning e Stream Analytics Data ScienceMini curso pratico de como utilizar o Azure Machine Learning Studio.Confecção de modelos preditivos para sites e analise de fraude.

Cursos ADV
2014 - 2014VBA com algoritmos Microsoft ExcelCurso de especialização em macro(VBA)

Revie - Inteligência Empresarial
2014 - 2014Inteligência Competitiva de Mercado e Indicadores KPI Inteligência de mercado
Stanford University
2018 - 2018Machine Learning Data ScienceO curso aborda a implementação e desenvolvimento dos modelos de Machine Learning em Octave sendo eles do tipo categórico ou de regressão. As principais técnicas ensinadas são: Regressão Logística, Regressão Linear, SVM e Neural Networks. Além das técnicas é ensinado a verificar a eficiência do modelo e o que fazer em caso de baixa performance.

Ibramerc - Instituto Brasileiro de Inteligência de Mercado
2015 - 2015Inteligência de Mercado Market InteligenceActivities and Societies: -Cases. -Problemas. Especialização em inteligência de mercado com foco em análises de mercado e também implementação da área em empresas.

Universidade do Estado do Rio de Janeiro
2010 - 2016Bacharelado em Estatística EstatísticaActivities and Societies: Diretoria do Centro Acadêmico de Matemática e Estatistica

Fundação Getulio Vargas
2024 - 2025Pós-graduação Lato Sensu - MBA Executivo Gestão com Ênfase em Liderança e Inovação
Experience

Rgarber Consultoria e Pesquisa
Jan 2011 - Jul 2011Statistic InternConducted statistical analysis, including hypothesis testing and correlation analysis.Performed georeferencing analysis.Debugged databases.Designed questionnaires.Monitored Focus Group sessions and CATI surveys.

Ipsos Brasil
Oct 2011 - May 2014Participated in Market Research projects focusing on international clients.Utilized key multivariate statistical techniques such as factor analysis and multiple correlation.Programmed conjoint analysis.Conducted market segmentation with brand perception analysis.Supported the development of a new brand emotional analysis tool.Simulated market scenarios, including positioning gain, brand image, market share, and volume.Automated Excel and PowerPoint reports using VBA.Utilized R programming language. Show less
Product Analyst
Oct 2013 - May 2014Estagiário
Oct 2011 - Sept 2013

MetrôRio
May 2014 - May 2018Market Intelligence AnalystDesigned and developed Origin-Destination analysis tools in partnership with the IT team, enhancing operational planning and reducing costs.Analyzed external events and their impact on demand, providing strategic insights to optimize operations and resource allocation.Contributed to operational planning and intelligence for major events, including the 2014 FIFA World Cup, 2016 Olympic Games, and New Year's Eve celebrations, ensuring efficiency and predictability.Created strategic management reports, presenting actionable insights and recommendations to executives.Developed statistical processes for internal audits, ensuring data accuracy and integrity.Served as a statistical consultant for government agencies, ensuring regulatory compliance and providing specialized technical support. Show less

Sistema FIRJAN
Jun 2018 - Mar 2019Marketing Data AnalystAnalyzed default profiles, performance, and purchasing behavior, generating strategic insights to optimize marketing campaigns.Presented marketing results to directors and managers, supporting data-driven decision-making.Developed student churn prediction models using time series in R (Holt-Winters and ARIMA), enhancing retention strategies.Formulated strategic goals for Escola Sesi and Summer Camp, aligning institutional objectives with measurable performance indicators.Created geomarketing, web scraping, and geocoding solutions using R, improving segmentation and targeting of marketing campaigns. Show less

Casa & Video
Jul 2019 - Jan 2021Applied machine learning models for sales forecasting using Azure Machine Learning Studio, optimizing the accuracy of projections.Communicated strategic insights to Executive and Senior Leadership, demonstrating the impact of data on business decision-making.Developed analytical applications with Shiny in R, including simulators for task allocation, integrating automations with VBA.Structured sales target-setting processes for stores, utilizing R, enhancing forecast accuracy and decision-making.Designed and executed complex SQL queries on SQL Server to extract and analyze critical data, driving strategic business initiatives. Show less
Analytics Consultant
Sept 2020 - Jan 2021Data Analytics Analyst
Jul 2019 - Sept 2020

DBC Company
Jan 2021 - Sept 2021Data AnalystWorked within Renner's DataLab team, focusing on data product development and collaborating with stakeholders from various departments to drive cross-functional initiatives.

Lojas Renner S.A
Sept 2021 - nowData Insights SpecialistTechLead the Analytics team for CRM and Marketing (2023-2024) and the Store Operations Analytics team (2021-2023), structuring processes, standardizing methodologies, and enhancing analysis quality.Facilitated agile ceremonies for the store operations analytics team, ensuring alignment and operational efficiency.Acted as a data specialist for CRM and Marketing, translating business challenges into strategic and actionable insights.Led the implementation of the RFV model and Customer Lifecycle strategy for Renner, Camicado, and Youcom, improving segmentation and personalization.Contributed to the definition and calculation of AI-driven initiatives, including spending curve modeling, roadmap planning, and technical requirements.Collaborated with the Data Science team in developing new data products, from business case formulation to implementation.Actively participated in the recruitment and selection of analysts, internship supervision, and the development of Individual Development Plans (IDPs) for the team. Show less
Licenses & Certifications

Market Intelligence Professional - CMIP
Ibramerc - Instituto Brasileiro de Inteligência de MercadoMar 2015- View certificate

Using Python to Access Web Data
CourseraJan 2019 - View certificate

Python Data Structures
CourseraDec 2018 - View certificate

Google Data Analytics Certificate
CourseraJun 2022 - View certificate

Programming for Everybody (Getting Started with Python)
CourseraDec 2018
Languages
- poPortuguês
- inInglês
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