CHIBUEZE S

Data Scientist
Male30 y/oBusiness Data Analysis/Data Scientist/Data Product ManagerLive in ShanghaiNationality Nigeria
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Work experience

  • Data Scientist

    Accenture
    2024.03-2025.07(a year)
    •Developed a social media analytics model to track customer sentiment and engagement trends across large-scale datasets. •Applied machine learning and NLP techniques to extract insights from unstructured social media data. •Improved campaign targeting strategy by identifying key engagement drivers and audience behavior patterns. •Collaborated with cross-functional teams to translate analytical insights into business strategies. •Built scalable data workflows for continuous monitoring of social media performance.
  • Social Media Evaluator

    Appen
    2020.07-2022.11(2 years)
    •Evaluated large volumes of social media data to improve recommendation system accuracy •Provided structured feedback that enhanced machine learning model performance and relevance •Ensured high-quality data annotation aligned with platform standards and AI model requirements

Projects

  • Sales Forecasting Model (Time Series)

    Completed
    2025.07-2026.06(a year)
    Built and compared ARMA, Prophet, and LSTM models for sales forecasting •Evaluated model performance using RMSE, MAE, and MAPE •Improved forecast accuracy through parameter tuning and model selection •Designed forecasts to support planning, inventory management, and revenue estimation
  • Movie Recommendation System (Hybrid Model)

    Completed
    2026.02-2026.03(2 months)
    •Developed a hybrid recommendation engine combining collaborative and content-based filtering •Evaluated performance using Precision@K, Recall@K, and Hit Rate •Improved recommendation relevance and user personalization •Designed to reflect real-world recommendation systems used in digital platforms
  • Fraud Detection System (Financial Risk)

    Completed
    2025.08-2025.09(2 months)
    Built a fraud detection pipeline using Logistic Regression, Random Forest, XGBoost, and Isolation Forest •Addressed severe class imbalance using rosa sampling techniques and appropriate evaluation metrics •Tuned models to improve recall while controlling false positives in a high-risk setting •Structured the solution to reflect real-world financial fraud detection scenarios

Educational experience

  • HP LIFE Program

    Data Science & Analytics Certificate
    2024.04-2024.12(9 months)
    • Completed training in core data science and analytics methodologies, including data analysis, data-driven decision making and business problem-solving. • Developed practical understanding of data workflows such as data collection, cleaning, analysis and interpretation. • Gained exposure to applying analytics techniques to real-world business scenarios and identifying insights that support strategic decisions. • Strengthened foundation for working with data tools, analytical thinking and delivering actionable insights
  • Primo Academy

    Data Science Program
    2023.11-2024.07(9 months)
    •Successfully completed an intensive curriculum focusing on Data Science & Analytics, encompassing statistical methodologies, data visualization techniques, and advanced machine learning algorithms. •Acquired adeptness in utilizing essential tools like Python, PowerBI, SQL, and Excel for proficient data manipulation and analysis, crucial for contemporary data science practices. •Honed practical competencies through immersive project-based learning experiences, working with authentic datasets representative of real-world scenarios.
  • Federal Polytechnic Nekede

    Cooperative Economic and Management
    2016.02-2018.03(2 years)
    Completed my higher national diploma from a prestigious University
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