Data Analyst & Data Scientist

I Transform Data into Strategic Actionable Intelligence

Highly analytical Data Analyst and Data Scientist specializing in end-to-end data pipelines, predictive machine learning modeling, enterprise SQL database engineering, and advanced Power BI visualization. Proven track record of bridging the gap between raw data engineering, statistical modeling, and executive decision making transforming complex, multi-source operational datasets into scalable predictive models and business intelligence solutions across healthcare, public sector, local government, and financial compliance networks.

Tech Stack & Tools
Python R Programming SQL Power BI & DAX Tableau Scikit-Learn / XGBoost Plotly / Dash Advanced Excel
Key Strengths & Core Capabilities
Data Storytelling Data Modelling ETL Pipeline Engineering Predictive Analytics Compliance & Risk Monitoring Anomaly & Fraud Detection Inventory Optimization Executive Reporting Cross-Functional Leadership NHS & Public Governance
Data Storytelling Data Modelling ETL Pipeline Engineering Predictive Analytics Compliance & Risk Monitoring Anomaly & Fraud Detection Inventory Optimization Executive Reporting Cross-Functional Leadership NHS & Public Governance
5+
Years Experience
20+
Leadership Trainings
BSc
Statistics
University of Ibadan
MSc
Big Data Science
University of Bradford
Adewale A. Oyenuga
Based in
Bradford, UK

Technical Competencies

Skills & Expertise

Data Engineering & SQL

Relational Schema Engineering, Multi-Table Joins, CTEs, Indexing, SQL Staging Schemas, Data Quality Auditing.

Python & Data Pipelines

Pandas, NumPy, Scikit-learn, XGBoost, Statsmodels, SQLAlchemy, PyODBC, Python Dash, Plotly Web Dashboards.

BI & Visual Analytics

Power BI Dashboarding, Advanced DAX (Context Isolation, Filter Overrides), Looker Studio, Dynamic SVG Metric UI.

Business & Governance

NHS Data Governance, 2WW Cancer Pathway Analytics, Financial Inclusion Strategy, Stakeholder Management.

Portfolio Showcase

Featured Technical Projects

End-to-end analytical solutions featuring predictive ML models, custom DAX logic, interactive Dash dashboards, and compliance dashboards.

Case Study

Agent Banking Compliance Risk Analysis

Complete predictive data modeling and ETL pipeline to identify corporate compliance vulnerabilities, suspicious transaction spikes, and high-risk agent behaviors across nationwide agency networks.

SQL Python Power BI Predictive Risk
₦44.93bn
Total Value
5,000
Monitored Agents
1,481
High-Risk Agents
Relational Staging Schema: Standardized SQL constraints & Python simulation.
ETL & Anomaly Detection: Dynamic DAX & ML predictive risk scoring (>70% threshold).
Executive Summary Dashboard
Compliance Analysis Dashboard
Predictive Analysis Dashboard
Regional Risk Profile Dashboard
Python Data Pipeline Script
Python & SQL
Auto-rotating view (Hover to pause)
Case Study

National Tax Gap Analytics & Variance Platform

Business intelligence platform quantifying national public revenue shortfalls, featuring context-aware DAX pipelines, time-series forecasting matrix, and custom SVG indicator customization.

Power BI Advanced DAX Power Query Time-Series
£1.5B
Tax Gap (2023-24)
+5.7%
YoY Change
£28.5B
Theoretical Liability
Context Isolation DAX: REMOVEFILTERS & COALESCE.
Dynamic SVG UI: Vector metrics in visual tables.
Tax Gap Executive Summary
Tax Variance & Risk
Trend Analysis
Power BI & DAX
Auto-rotating view (Hover to pause)
Case Study

NHS Trust Demand Forecasting & Inventory Optimization System

End-to-end forecasting pipeline and interactive web portal predicting pharmaceutical demand across NHS Hospital Trust facilities, preventing stockouts and reducing expired inventory waste.

Python XGBoost Dash Plotly SQL
28%
RMSE Reduction
94%
Stockouts Prevented
95%
Service Level
Predictive Modeling: Baseline vs XGBoost Regressor.
Supply Chain Logic: Dynamic Safety Stock & ROP.
NHS Executive Summary Dashboard
NHS Demand Forecasting Portal
NHS Re-Order Planning Table
Python & Dash
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Career History

Professional Experience

Applied analytics, statistical modeling, database engineering, and BI reporting across healthcare, public sector, and financial institutions.

Feb 2024 – Feb 2026

Patient Liaison Officer

UCLH NHS Foundation Trust

Patient Flow Management, Stakeholder Liaison & Healthcare Data Tracking

  • Facilitated seamless patient communication and operational coordination between clinical teams, hospital management, and patients to improve service delivery standards.
  • Tracked patient pathways, appointment flows, and administrative metrics to identify operational bottlenecks and enhance patient satisfaction.
  • Maintained strict adherence to NHS governance, data protection (GDPR), and confidentiality standards across high-volume healthcare environments.
Healthcare Operations Patient Pathway Tracking NHS Governance Data Entry & Audit
Jul 2023 – Oct 2023

Data Analyst

Bradford Council

ITS Management Reporting, Star Schema Data Modeling & Dashboard Development

  • Gathered business requirements from IT stakeholders to define core KPIs and reporting specifications for the Cherwell ITSM platform.
  • Designed and implemented unified Power BI dashboards, utilizing scalable star schema data models to streamline performance analytics.
  • Conducted rigorous data cleaning, validation, and anomaly detection to deliver accurate, decision-ready insights for senior management.
  • Produced comprehensive technical documentation and end-user training materials to drive organizational adoption of newly deployed data tools.
Power BI Star Schema Cherwell ITSM Data Cleaning Technical Documentation
Jul 2019 – Aug 2022

Data Engineer & Risk Analyst

SANEF Limited

Agent Banking Compliance Monitoring & ETL Pipeline Architecture

  • Automated high-visibility executive dashboards tracking network expansion trends for a nationwide financial ecosystem of over 1.3 million touchpoints.
  • Designed production SQL relational database staging schemas and Python simulation scripts monitoring ₦44.93bn in transaction value across 5,000 agents nationwide.
  • Applied machine learning predictive risk scoring models (>70% threshold) identifying 1,481 high-risk agents and tracking suspicious transaction spikes.
  • Automated end-to-end ETL processing pipelines to streamline compliance reporting and regional risk profiling.
SQL Staging Python ETL Predictive Risk Compliance Analytics
Apr 2018 – Jun 2019

Data Analyst & Corporate Finance Reporting Specialist

Access Bank Plc

Financial Intelligence, Automated Reporting & Process Optimization

  • Managed large-scale financial transaction data cleaning, validation, and database reconciliation across corporate banking channels.
  • Automated recurring financial performance reports using advanced SQL queries and Power BI, significantly reducing manual data prep time.
  • Partnered with cross-functional risk and compliance teams to ensure strict regulatory alignment and clear audit trails.
Financial Modeling SQL Querying Power BI Data Validation
Endorsements

Professional Recommendations

Feedback on data modeling rigor, SQL engineering, dashboard execution, and collaborative problem-solving.

"An exceptional analytical mind with an impressive mastery of Data reporting and SQL validation. At Access Bank, he built an automated reporting pipelines and data reconciliation tools which provided our team with reliable, audit-ready numbers that saved us countless hours."

AW

Amarachi Wogu

Former Line Manager | Access Bank Plc

"He possesses outstanding data pipeline engineering and predictive risk modeling skills. At SANEF, the agent compliance scoring engine and automated Python ETL scripts made tracking high-risk transactions across nationwide networks incredibly efficient."

MJ

Mike Joe

Former Colleague | SANEF Limited

"A brilliant analytical thinker with deep technical expertise in machine learning and data science. His ability to simplify complex statistical models, baseline evaluations, and dynamic Dash application architectures is second to none."

FA

Felix Aduloju

Postgraduate Peer | University of Bradford

Let's Connect

Let's Collaborate On Your Next Data Project

Whether you need predictive machine learning models, custom BI dashboard design, or operational supply chain intelligence, feel free to get in touch!

Email Address
waleoyenuga@gmail.com
GitHub Repositories
github.com/AdewaleAnalytics

© 2026 Adewale A. Oyenuga. All rights reserved.