Data Analyst

Turning data
into decisions

I'm Tiwaloluwa Ogunoye — a data analyst skilled in SQL, Power BI, Excel, and data visualization. I transform raw data into insights that drive business action.

View Projects Download CV Get In Touch

Focus

Business Insights

Tools

SQL · BI · Excel

Specialty

Customer Analytics

Status

Available for Hire

01

Skills & Tools

Query & Data

SQL JOINs GROUP BY Subqueries HAVING Power Query Pandas

Visualisation

Power BI DAX Looker Studio Tableau Dashboard Design

Spreadsheets & Analysis

Excel PivotTables VLOOKUP Data Cleaning KPI Tracking

Core Competencies

Business Insights Storytelling Trend Analysis Reporting Segmentation
02

Portfolio Projects

Project 01 · 2026

Customer Churn Analysis Dashboard

Power BI SQL Power Query DAX
Churn Dashboard View Dashboard View SQL code

Analyzed customer churn behavior and revenue exposure using SQL and Power BI to identify high-risk segments.

Key Findings

  • Churn rate identified at 26.5% across the customer base
  • Month-to-month contracts carried the highest churn risk
  • Customers within 0–12 months tenure showed peak churn likelihood
  • Certain payment methods correlated strongly with churn behavior
Provided actionable insights to support customer retention strategies and reduce revenue exposure from high-risk segments.
Project 02 · 2026

Hospital Performance Dashboard

Looker Studio Excel SQL
Hospital Dashboard View Dashboard View SQL code

Evaluated hospital cost efficiency and patient satisfaction across departments to surface operational gaps and inform staffing decisions.

Key Findings

  • Neurology identified as highest-cost department at $138K
  • Patient satisfaction scored 3.07 vs. a 4.0 target — a significant gap
  • Scheduling inefficiencies flagged across multiple appointment datasets
Recommended improvements in staffing allocation and patient feedback tracking to improve operational efficiency.
03

About Me

"Transforming raw data into decisions that actually move the business forward."

I began my data analytics journey in January 2026 and have been building hands-on experience through real-world projects ever since. I am actively seeking remote or international Data Analyst / Business Analyst opportunities.

✉ Tiwaaloluwaogunoye@gmail.com in LinkedIn Profile

What I Do

I specialize in data cleaning and transformation, building interactive dashboards, identifying business trends and inefficiencies, and translating complex data into clear insights for non-technical stakeholders.

How I Work

I enjoy working with real-world datasets to solve business problems. My approach combines rigorous SQL querying and data preparation with clear, purposeful visualization that puts the insight — not the chart — first.

Currently Seeking

Remote or international roles in Data Analytics or Business Analytics where I can apply SQL, Power BI, and Excel skills to real organizational challenges and continue growing rapidly.