Olonijaye S.-Data Scientist
Check rate
Experience
Sentiment Analysis using DistilBERT
Amdari
Technologies: Python, Hugging Face Transformers, Streamlit, FastAPI, MLflow, DagsHub
- Built a sentiment analysis application using DistilBERT to classify customer reviews.
- Performed text preprocessing and implemented transformer-based inference pipelines.
- Integrated MLflow and DagsHub for experiment tracking and model version management.
- Developed a Streamlit user interface and FastAPI backend to support interactive sentiment prediction.
Nordex Optimization shift
Nordex; Amdari
Technologies: Python, SQLite, Pandas, Scikit-learn, MLflow, Streamlit, FastAPI, Git
- Designed and developed an end-to-end machine learning pipeline to predict manufacturing shift efficiency using over 296,000 operational records.
- Built automated workflows for data ingestion, validation, preprocessing, feature engineering, and model training using a modular project architecture.
- Implemented centralized logging, configuration management, and SQLite integration to improve maintainability and scalability.
- Developing a Streamlit dashboard and FastAPI service to enable interactive predictions and model deployment.
Hotel Booking Cancellation Prediction
10alytics
Technologies: Python, Pandas, Scikit-learn, Matplotlib, Seaborn
- Developed a machine learning model to predict hotel booking cancellations using historical reservation data.
- Performed data cleaning, exploratory data analysis, preprocessing, and feature engineering to improve model performance.
- Evaluated model performance using Accuracy, Precision, Recall, F1-score, and Confusion Matrix.
- Identified key drivers of booking cancellations and translated findings into actionable business insights.
Customer Behavior Analysis
10alytics
Technologies: Python, Pandas, Matplotlib, Seaborn
- Conducted exploratory data analysis to identify customer usage patterns and behavioral trends.
- Cleaned, transformed, and validated datasets to improve analytical accuracy.
- Developed visualizations and dashboards to communicate insights effectively.
- Presented recommendations based on customer behavior analysis to support business decision-making.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Energy, Manufacturing, and Tourism.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Business Intelligence, Information Technology, Product Development, Operations, Production, and Research and Development.
Summary
Results-driven Data Scientist with a strong foundation in Python, SQL, Excel, Power BI, Tableau, and machine learning. Experienced in designing end-to-end data analytics and predictive modeling solutions, including data cleaning, exploratory data analysis, feature engineering, model development, and dashboard creation. Skilled at turning complex datasets into actionable insights that support business decision-making. Passionate about using data, machine learning, and business intelligence to solve real-world problems while continuously growing technical skills.
Skills
- Programming Languages: Python, Sql
- Data Analysis & Visualization: Microsoft Excel, Power Bi, Tableau, Pandas, Numpy, Matplotlib, Seaborn
- Machine Learning: Scikit-Learn, Classification, Regression, Feature Engineering, Model Evaluation, Hyperparameter Tuning, Exploratory Data Analysis (Eda)
- Deployment & Mlops: Streamlit, Fastapi, Mlflow, Dagshub
- Developer Tools: Git, Github, Jupyter Notebook, Visual Studio Code, Google Colab
Languages
Education
Obafemi Awolowo University
Bachelor of Science · Building Technology · Ife, Nigeria · Second Class Upper
Certifications & licenses
Graduate Member, Nigerian Institute of Building (GMNIOB)
HIPAA Compliance Certificate
Master Data Scientist
10Alytics
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Olonijaye is based in Ibadan, Nigeria and can operate in on-site, hybrid, and remote work models.
Olonijaye speaks the following languages: Yoruba (Native), English (Advanced), French (Intermediate).
Olonijaye has at least 1 year of experience. During this time, Olonijaye has worked in at least 4 different roles and for 3 different companies. The average length of individual experience is 3 months. Note that Olonijaye may not have shared all experience and actually has more experience.
Based on recent experience, Olonijaye would be well-suited for roles such as: Sentiment Analysis using DistilBERT, Nordex Optimization shift, Hotel Booking Cancellation Prediction.
Olonijaye's most recent position is Sentiment Analysis using DistilBERT at Amdari.
In recent years, Olonijaye has worked for Amdari, Nordex; Amdari, and 10alytics.
Olonijaye is most experienced in industries like Tourism, Information Technology, and Energy. Olonijaye also has some experience in Manufacturing.
Olonijaye is most experienced in business areas like Business Intelligence, Research and Development, and Information Technology. Olonijaye also has some experience in Product Development, Operations, and Production.
Olonijaye holds a Bachelor in Building Technology from Obafemi Awolowo University.
Olonijaye has 3 certificates. These include: Graduate Member, Nigerian Institute of Building (GMNIOB), HIPAA Compliance Certificate, and Master Data Scientist.
Olonijaye is immediately available full-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
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The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 28 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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