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Guilherme Mello

@guilhermemello

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Data & Analytics Consultant specializing in healthcare and marketing analytics, driving strategy with ML.

Brazil

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What I'm looking for

I’m looking for a role where I can lead analytics and Data Science end-to-end—turning business questions into reliable KPIs, predictive models, and actionable dashboards—ideally in healthcare or marketing, with room to influence strategy and drive measurable impact.

I’m a Data & Analytics Consultant with executive experience in Market Intelligence and Strategy, specializing in data analysis at Optum, MarketData, and Nextel. I transform business challenges into Data Science demands, building reliable ETL pipelines, KPIs, dashboards, and predictive models that improve healthcare program measurement and marketing campaign ROI.

I’ve led multidisciplinary technical teams of up to seven members while staying hands-on, and I’ve developed data products that support the healthcare market—such as reducing readmissions by up to 36% through a transfer-risk probability model. I work across analytics and strategy to provide better tools and insights for accurate, data-driven decision-making.

Experience

Work history, roles, and key accomplishments

Current

Data & Analytics Consultant

Current

Cimento Nassau

Feb 2025 - Present (1 year 1 month)

Developed ETL processes and Power BI management/commercial reports to support reliable business decisions, including scenario analyses estimating EBITDA margin increases of up to 20% depending on sales conditions. Analyzed and identified strategic clients with potential for volume and revenue growth.

ETL Power BI SQL Commercial Analytics EBITDA Data Quality Data Integration

Data Analysis Specialist

Fully Ecosystem

May 2023 - Jan 2025 (1 year 8 months)

Collaborated with the CDO to deliver data-driven insights by building KPI and operational dashboards using SQL and Python with Power BI. Developed a predictive model to target high-likelihood app registrants and designed a DoE experiment that doubled average conversion and produced outcomes over 6x better than the least effective factor combination.

KPIs SQL Python Power BI predictive modeling Audience Targeting DoE Experimentation Conversion Optimization Salesforce CDP Data Strategy

Data Analysis Manager

Valsa Saúde

Nov 2021 - May 2023 (1 year 6 months)

Reported to the CEO to structure the data analysis pillar and manage a junior analyst. Created and implemented SQL/Python/Power BI KPIs and statistical analyses to evaluate ROI of primary healthcare services, including client-validated criteria to identify health events in their databases.

Data Analytics Management KPIs SQL Python Power BI Statistical Analysis ROI Measurement Healthcare Analytics

Data Analytics Manager

Sense Inteligência em Dados

Jan 2020 - Nov 2021 (1 year 10 months)

Reported to the CEO while leading a portfolio of data science solutions focused on healthcare industry challenges. Co-developed a data product predicting the probability of hospital transfer within 30 days for new homecare patients, reducing monthly readmissions by up to 36%.

Machine Learning Data Products

Data Analytics Manager

Optum

Jan 2015 - Jan 2020 (5 years)

Managed a team of seven multidisciplinary analysts applying data manipulation and analysis to healthcare solutions. Transferred core US product know-how to Brazil using SAS and Tableau, and evaluated program ROI with Propensity Score Matching while building predictive models to identify patients likely to become high-cost in the next 12 months.

SAS Tableau Team Leadership Healthcare Analytics predictive modeling

Data Analysis Specialist

Nextel

Aug 2013 - Dec 2014 (1 year 4 months)

Provided statistical analyses and predictive models to Marketing and business teams, coordinating two statistical data analysts. Built predictive churn models to enable proactive campaign design and measured campaign ROI using control groups and statistical analyses at the end of each campaign.

Churn Modeling Marketing Analytics Statistical Analysis Control Group Selection predictive modeling Experiment Outcome Measurement

Statistics Coordinator Intern

MarketData

Jul 2007 - Jul 2013 (6 years)

Oversaw teams responsible for statistical analyses and predictive model development across multiple industries, reporting to the Statistics Manager and Team Coordinator. Built models such as churn forecasting, cross-sell/up-sell predictions, LTV calculations, and customer segmentation, and supported campaign monitoring with control-group selection and result statistical evaluation.

predictive modeling Statistical Analysis LTV Modeling Customer Segmentation Control Group Selection Team Coordination