
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
Accenture2024.03-2025.07(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
Appen2020.07-2022.11(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)
Completed2025.07-2026.06(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 estimationMovie Recommendation System (Hybrid Model)
Completed2026.02-2026.03(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 platformsFraud Detection System (Financial Risk)
Completed2025.08-2025.09(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 Certificate2024.04-2024.12(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 insightsPrimo Academy
Data Science Program2023.11-2024.07(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 Management2016.02-2018.03(2 years)Completed my higher national diploma from a prestigious University
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