OYETAYO OYEBISI
Data Analyst | Data Scientist | Machine Learning Engineer
Nairobi
Summary
Results-driven Data Analyst and Data Scientist with 3+ years of experience converting complex datasets into actionable insights across fintech, healthcare, and research sectors. Expertise in SQL, Python, R, and Tableau, specializing in fraud detection, forecasting, and statistical analysis. Developed data-driven solutions that enhance operational efficiency and inform strategic decision-making, supported by a strong foundation in artificial intelligence and advanced analytics.
Overview
6
6
Certifications
9
9
years of professional experience
Work History
Data Analyst
Moremonee Group (Fintech)
01.2024 - Current
- Designed and monitored business KPIs across finance, operations, product, and customer functions, enabling data-driven decision making.
- Developed optimized SQL queries and automated data pipelines to support reporting, reconciliation, fraud monitoring, and operational analytics.
- Analyze large transaction and operational datasets to identify trends, anomalies, and actionable business insights supporting strategic decision-making.
- Monitored key performance indicators and generated recurring performance reports for executive management, facilitating informed decision-making.
- Collaborate with cross-functional stakeholders to define reporting requirements and deliver data-driven recommendations.
- Built a fraud detection and alert system that contributed to a 25% reduction in fraudulent transactions.
- Automated reconciliation processes, reducing reporting inconsistencies by 30% and improving operational efficiency.
- Performed ad-hoc analyses to support business growth initiatives, customer behavior analysis, and risk management strategies.
- Ensured data integrity, quality, and consistency across reporting systems and operational databases.
Freelance Data Analyst & Scientist
Expert Hive Freelancing Services
01.2022 - Current
- Conducted end-to-end analysis for clients including data cleaning, modelling, and visualization which improves project quality and decision outcomes.
- Conducted end-to-end analysis for clients, encompassing data cleaning, modelling, and visualization, enhancing project quality and informing decision outcomes.
- Mentored students on academic research projects and supervised statistical modelling across multiple disciplines, fostering academic growth and research proficiency.
- Developed business analyses and dashboards for small businesses and professional clients, enabling data-driven insights and strategic planning.
Graduate Assistant
Kwara State Polytechnic
01.2023 - 01.2024
- Instructed undergraduate courses in Statistics, Data Analysis, SPSS, Excel, and R programming, enhancing students' analytical skills.
- Created course materials, assessments, and practical lab sessions for 150+ students, fostering a comprehensive learning environment.
- Facilitated hands-on workshops for data tools including Python, R, STATA, and Excel.
- Conducted hands-on workshops for data tools including Python, R, STATA, and Excel, equipping students with practical skills for data analysis.
Data Intern
National Bureau of Statistics
01.2018 - 01.2018
- Conducted national data collection exercises including household, market, and farm surveys.
- Mapped enumeration areas, supporting the development of comprehensive demographic and socioeconomic datasets.
- Verified data quality through field checks and structured documentation, ensuring accuracy for analysis.
Education
Master of Science - Statistics
Pan African University / Jomo Kenyatta University
Kenya 04.2001 -
BSc - Statistics
University of Ilorin
Ilorin, Nigeria01-2024
Higher National Diploma (HND) - undefined
Kwara State Polytechnic
Ilorin, Nigeria01-2022
National Diploma (ND) - undefined
Kwara State Polytechnic
Ilorin, Nigeria01-2019
Skills
Data Cleaning
Data Visualization
Data Interpretation Techniques
Business reporting
KPI development
Programming & Query: Python (Pandas, NumPy, Scikit-Learn, PyTorch, TensorFlow, Keras, Matplotlib, Seaborn), R (tidyverse, caret, forecast), SQL (PostgreSQL)
Databases: PostgreSQL, MySQL, SQL Server, MongoDB
Advanced machine learning
Excel Statistical Analysis
Data Pipeline Management
Soft Skills: Stakeholder Communication, Analytical Thinking, Critical Reasoning
Additional Information
Uppon Request
Certification
IBM Data Analytics - Coursera
Accomplishments
- Supervised team of 10 staff members.
- Modified and improved existing databases to reduce processing time by 5hours and improve accuracy by 40%.
- Made recommendations on business intelligence tools to cut processing time by 3
- Integrated SQL data pipelines with Power BI dashboards, enabling real-time reporting and faster decision-making.
- Integrated multiple data sources into a centralized analytics pipeline, improving data consistency and workflow efficiency.
Timeline
Data Analyst
Moremonee Group (Fintech)
01.2024 - Current
Graduate Assistant
Kwara State Polytechnic
01.2023 - 01.2024
Freelance Data Analyst & Scientist
Expert Hive Freelancing Services
01.2022 - Current
Data Intern
National Bureau of Statistics
01.2018 - 01.2018
Master of Science - Statistics
Pan African University / Jomo Kenyatta University
04.2001 -
National Diploma (ND) - undefined
Kwara State Polytechnic
Higher National Diploma (HND) - undefined
Kwara State Polytechnic
BSc - Statistics
University of Ilorin
Referees
Available upon request