Senior Data Scientist

Memed

full-time

Posted on: 2/9/2026

Location Type: Remote

Location: Brazil

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About the role

Understand business area needs and translate them into analytical requests, hypotheses, technical requirements and execution plans.
Develop and implement advanced Machine Learning models, predictive and prescriptive analyses applied to activation, engagement and retention problems.
Design statistical methodologies for behavioral analysis, segmentations, cohorts and tracking of key metrics, ensuring consistency, accuracy and reproducibility.
Evaluate the impact of campaigns and business interventions using causal inference methodologies and econometric models, including Marketing Mix Modeling (MMM), uplift modeling and quasi-experimental approaches (Diff-in-Diffs, Synthetic Control, Propensity Score Matching).
Develop statistical frameworks for measuring incremental impact, channel attribution and marketing investment optimization, connecting analytical insights to strategic decisions in product, growth and partnerships.
Interpret and communicate complex information about physicians, patients and partners, generating strategic insights for product, engineering, marketing and corporate areas.
Collaborate with Product, Engineering, Marketing and Operations teams, turning data into practical, actionable recommendations.
Ensure best practices in documentation, version control, governance and data quality.
Serve as a technical reference, supporting solution reviews, defining analytical standards and promoting Data Science best practices.

Strong experience in Python, using Pandas, Scikit-Learn and XGBoost.
Proficiency in Machine Learning techniques, including regressions (linear, logistic and regularized), decision trees and Random Forest.
Knowledge of Deep Learning (TensorFlow and/or PyTorch).
Experience with time series modeling (ARIMA / SARIMA).
Experience with NLP and Generative AI applied to structured and unstructured data.
Experience working with unstructured data (text, logs, etc.).
Strong foundation in applied statistics.
Experience with cohort analysis and user behavior analytics.
Experience in experimentation and A/B testing, from hypothesis definition to result analysis.
Ability to turn data into actionable insights focused on decision making.
Expertise in data visualization and storytelling.
Experience with Matplotlib and Seaborn.
Ability to communicate results clearly to technical and non-technical audiences.
Solid knowledge of SQL.
Experience with large-scale data (Big Data).
Good software engineering practices: Git, Object-Oriented Programming (OOP), Clean Code.
Experience with MLOps and deployment: Docker, APIs using FastAPI or Streamlit.
Experience with Big Data and Cloud Computing, using: Spark, AWS, GCP or Azure.

Benefits

Mental health support through Zenklub, offering psychological care with specialized professionals.
Health and dental insurance to take care of your well-being.
Meal and food vouchers on a Mastercard card, accepted at restaurants and supermarkets.
Memed Cuida – R$110/month to use as you wish: wellness, culture, leisure, or whatever makes sense for you.
Childcare allowance to support employees with children.
Day off on your birthday to celebrate as you prefer.
Life insurance because caring also means being prepared.
Wellhub (formerly Gympass), to keep your body active and mind healthy.
Único Skill, with access to online courses, undergraduate and graduate programs, language courses and mentoring.
Exclusive partnerships that expand your possibilities.

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

PythonPandasScikit-LearnXGBoostMachine LearningDeep LearningARIMANLPSQLBig Data

Soft Skills

communicationcollaborationanalytical thinkingproblem solvingstorytellingactionable insightsdecision makingdocumentationgovernancedata quality