Gustavo R Santos Email and Phone Number
Gustavo R Santos work email
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Gustavo R Santos personal email
Hi! I’m Gustavo, a Data Scientist with 13+ years of experience helping businesses make smarter decisions using data. I specialize in data analysis, machine learning, and visualization, leveraging tools like Python, R, SQL, and PySpark. At Food Lion, I developed algorithms that improved e-commerce store selection accuracy by 20% and optimized labor costs by 33%. My work includes creating predictive models with <2% error rates (MAPE) and interactive Power BI dashboards for actionable insights. At IBM, I reduced overtime by 50% and implemented forecasting tools that eliminated input errors, streamlining financial operations.Beyond work, I’m passionate about sharing knowledge. I’m the author of Data Wrangling with R (Packt) and instructor of a PySpark course on Udemy. My Medium blog attracts 20k+ monthly views, where I share data science techniques and tools. With an MBA in Data Science & Analytics (USP, GPA 98%) and certifications from MIT and Data Science Academy, I’m always learning and connecting with others. Let’s connect to tackle your toughest data challenges!
Food Lion
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Data ScientistFood Lion Nov 2020 - PresentSalisbury, North Carolina, Us+ Working at the Corporate Strategy team exploring and transforming datasets, performing complex and Big Data wrangling with PySpark and SQL. Impact: ETL generated quality data for models to select best stores for ecommerce with 20% more precision.+ Constantly applying statistical analysis techniques for hypothesis testing and regression problems, as well as solving optimization problemsImpact: Created an algorithm to recommend the best number of checkout lanes by store to save front-end space and optimize labor costs in 33%. + I also model data using machine learning models with Python, R, delivering results with interactive dashboards in Power BI. Impact: Dashboard for HR incidents by region and store.+ Working with many modern algorithms such as clustering (KMeans, GMM), PCA, Time Series, Factor Analysis, NLP, classification and regression algorithms.Impact: Models helped to explain checkout usage with Shapley theory, predict store traffic in the following month with MAPE lower than 2%. -
Data AnalystIbm Apr 2020 - May 2020Armonk, New York, Ny, UsMoved to the USA in August 2019. Work Permit granted in February 2020.Hired in April, but released due to COVID19 outbreak.- Delivered dynamic dashboards during that month -
Senior Financial AnalystIbm Jul 2012 - Jul 2019Armonk, New York, Ny, Us* Responsible for two portfolios of accounts that add up to $10M+ USD.* Financial Data analysis based on the needs of the organization, planning and tracking budgets and expense targets.* Controlled the budgets of the projects analyzing costs and executing expense analysis and forecasting.* Drive planning and actions based on business intelligence, leading to recommendations concerning opportunities for cost reduction and budget balance.* Implemented budget restructuring from project-based to squad-based planning.* Reduced overtime expenses by 50% with the implementation of a dashboard.* Actively worked with SQL queries as well as other sources to retrieve large sets of data in order to process and extract business insights with Data Visualization in Python and Excel for the executive team on a monthly basis. * Developed and implemented new budgeting models and automated templates with VBA coding in Excel, decreasing errors in reports and reducing lead time of processes (up to 60%).* Connecting point between the Executive team and Performing Project Managers, frequently described as a knowledgeable person and a good asset for the team. -
Mainframe Billing Analyst LeadIbm Mar 2011 - Jul 2012Armonk, New York, Ny, UsTeam leader responsible for management in the Mainframe billing area, including invoice consolidation, data analysis, error recognition and solution recommendations.Managed the billing process of the CPU resources consumed each month by the customer, presenting the results to the executive team, pointing the variances and recommending the best action plan for issues. Developed and implemented quality assessment semi-automated templates (VBA Language), ensuring the team could replicate it quickly, thus decreasing processes risks (risk management) and nearly eliminated input errors (99% effective). -
Invoice AnalystIbm Mar 2010 - Mar 2011Armonk, New York, Ny, Us- Working directly with IBM USA, responsible for data analysis and treatment within the invoice/ billing process of north-american large enterprises.- Project Management tasks (SLA changes report, KCO, Request Management report and follow up)- Process monthly resource consumption data analysis that inserted in the invoice. - Interface with account executives in order to provide consumption status. - Interface with the billing team to process invoice changes and updates.- Development of new processes to optimize and automatize tasks, reducing it's lead time up to 60% and improving the accuracy during the performance of the task. -
Customer Support AnalystLenovo Jun 2006 - Mar 2009Morrisville, Nc, UsSales support for Large USA Enterprises, coordinating all the purchasing process next to the internal and external customers of the company.Provided customer assistance in the purchase process, acting as a problem solver of many kinds of issues.Performed Order Entry and developed sales reports for Large Enterprises from USA, such as Coca-Cola, United Nations, World Bank and many American states.Implemented SAP macro scripts in the Order Entry process, making it semi-automated.Provided training sessions to other employees in English and Portuguese and created an Excel tool to measure the knowledge grade of the team.Indicated as outstanding employee on 2008 (2nd half)Business trip - 20 days in Mexico helping to perform the transition of the CSO activities from Brazil to Monterrey.
Gustavo R Santos Skills
Gustavo R Santos Education Details
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Mba Usp/EsalqData Science And Analytics -
Mit XproData Science -
Data Science AcademyData Science -
Fgv - Fundação Getulio VargasMarketing -
Pontifícia Universidade Católica De CampinasMarketing And Advertising
Frequently Asked Questions about Gustavo R Santos
What company does Gustavo R Santos work for?
Gustavo R Santos works for Food Lion
What is Gustavo R Santos's role at the current company?
Gustavo R Santos's current role is Data Scientist | MBA | Python | R Language | SQL | Databricks | Machine Learning | Published Author | I solve business challenges through the power of data..
What is Gustavo R Santos's email address?
Gustavo R Santos's email address is gu****@****.com.br
What schools did Gustavo R Santos attend?
Gustavo R Santos attended Mba Usp/esalq, Mit Xpro, Data Science Academy, Fgv - Fundação Getulio Vargas, Pontifícia Universidade Católica De Campinas.
What skills is Gustavo R Santos known for?
Gustavo R Santos has skills like Process Improvement, Lotus Notes, Analysis, Leadership, Project Management, Management, Microsoft Excel, Data Analysis, English, Sap, Windows, Customer Service.
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