B
Bruna Coelho
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Data Scientist
São Paulo, Brazil
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Full-time jobs
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Résumé
Jobs
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Senior Data ScientistMcKinsey & CompanyJan 2023 - Mar 2024 (1 year 3 months)• As a Senior Data Scientist at QuantumBlack, a McKinsey company focused on harnessing the power of AI, I leveraged my expertise in artificial intelligence (AI), machine learning (ML), and strong statistical skills to solve complex business challenges across diverse industries, including banking, retail, education, genetics, and agriculture. I built, validated, and deployed predictive models using large-scale data for high-impact applications in areas like customer churn, acquisition, pricing, and risk assessment. • Key Responsibilities: ◦ CustomerOne Development & Automation: Played an important role in building and maintaining CustomerOne, an internal asset for retail banking. Automated pipelines for crucial predictive models used in- QData ScientistQuantumBlack, a McKinsey companyMar 2020 - Jan 2023 (2 years 11 months)• Identified machine learning R&D initiatives that have high applicability potential in the industry. • Worked with leadership and clients to understand business problems and map to state-of-the-art solutions. • Mentored other data scientists and helped them grow their knowledge and skills. • Collaborated with data engineers, machine learning engineers, and designers to build end-to-end analytics solutions. • Offered a deep understanding of clients' data landscape, assessing data quality, mapping data fields to hypotheses, and curating, manipulating, and preparing data for use in advanced analytics models. • Worked in a multi-disciplinary environment of highly skilled people in data science, data engineering, business, and design on i
- OData ScientistOpen CodigoMay 2018 - Mar 2020 (1 year 11 months)• Segmented customers for targeted marketing campaigns: Grouped customers by characteristics and behaviors, enabling the marketing team to personalize campaigns for higher conversion rates. • As a Data Scientist at Open Co, a fintech specializing in personal credit, I leveraged advanced statistical modeling, machine learning, and numerical optimization techniques to solve complex business challenges. • Key Responsibilities: • Built the company's first credit delinquency model: Eliminated manual analysis by developing a robust predictive model using diverse data sources (Central Bank, credit bureaus, bank statements, fraud prevention). Tackled challenges like limited data and imbalance. Tested various algorithms (LGBM, GBM, RFM) and coll
- MData ScientistMarketdataJun 2016 - May 2018 (2 years)• As a Data Scientist at Marketdata, a marketing consultancy firm, I leveraged data-driven insights to drive business growth and enhance marketing strategies. I built and implemented data-driven solutions, including churn prediction models and customer segmentation strategies, that directly contributed to improved customer engagement and loyalty. • Key Responsibilities: ◦ Data Analytics & Modeling: Developed marketing models from concept to production, including decision tree models for churn prediction and customer acquisition. Utilized the RFM model (Recency, Frequency, Value) for customer segmentation in loyalty program campaigns. ◦ Data-Driven Insights: Conducted in-depth analyses of large datasets using statistical and machine le
Education
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- Bachelor's DegreeUniversidade de São Paulo – Public health college, environmental health departmentJan 2013 - Dec 2017 (5 years)