Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I'm a data analyst with 6+ years experience delivering actionable insights across telecom, retail, and procurement, proficient in SQL, Python, Power BI, and Excel, and skilled at building automated reporting systems to drive efficiency and revenue growth. I enjoy turning data into clear, decision-ready stories and collaborating with cross-functional teams to align analytics with business goals. In my roles, I’ve reduced reporting time, improved data accuracy, and uncovered opportunities that support strategic growth.…I'm a data analyst with 6+ years experience delivering actionable insights across telecom, retail, and procurement, proficient in SQL, Python, Power BI, and Excel, and skilled at building automated reporting systems to drive efficiency and revenue growth. I enjoy turning data into clear, decision-ready stories and collaborating with cross-functional teams to align analytics with business goals. In my roles, I’ve reduced reporting time, improved data accuracy, and uncovered opportunities that support strategic growth.

Oluwafemi Ajewole

Data Analyst, Data Scientist, Data Visualizer, +1





I'm a data analyst with 6+ years experience delivering actionable insights across telecom, retail, and procurement, proficient in SQL, Python, Power BI, and Excel, and skilled at building automated reporting systems to drive efficiency and revenue growth. I enjoy turning data into clear, decision-ready stories and collaborating with cross-functional teams to align analytics with business goals. In my roles, I’ve reduced reporting time, improved data accuracy, and uncovered opportunities that support strategic growth.…I'm a data analyst with 6+ years experience delivering actionable insights across telecom, retail, and procurement, proficient in SQL, Python, Power BI, and Excel, and skilled at building automated reporting systems to drive efficiency and revenue growth. I enjoy turning data into clear, decision-ready stories and collaborating with cross-functional teams to align analytics with business goals. In my roles, I’ve reduced reporting time, improved data accuracy, and uncovered opportunities that support strategic growth.

Available to hire

I’m a data analyst with 6+ years experience delivering actionable insights across telecom, retail, and procurement, proficient in SQL, Python, Power BI, and Excel, and skilled at building automated reporting systems to drive efficiency and revenue growth. I enjoy turning data into clear, decision-ready stories and collaborating with cross-functional teams to align analytics with business goals. In my roles, I’ve reduced reporting time, improved data accuracy, and uncovered opportunities that support strategic growth.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Data Analyst at VividX

October 1, 2024 - November 6, 2025

Developed a GA4 pipeline with BigQuery and DBT to model web engagement and built Looker Studio dashboards for impressions, engagement rate, CTR, session behavior, and conversion-like events. Analyzed a $60M inventory, identifying stock movements and procurement inefficiencies. Designed a SQL database with real-time inventory tracking in Power BI, reducing stock inefficiencies and cutting excess stock purchases by ~15%. Built Python/SQL data pipelines with data governance, reducing report generation from over a day to under an hour. Analyzed £20M in retail sales to uncover customer and product insights driving up to 20% sales growth in six months. Delivered dashboards in Excel and Power BI within Agile sprints and collaborated with stakeholders to implement iterative improvements.

Post Graduate Researcher – Data Science at Manchester Metropolitan University

October 1, 2024 - October 1, 2024

Developed a regression model to predict vehicle selling prices, improving pricing accuracy and automating suggestions. Applied deep learning to classify COVID-19 and Pneumonia from chest X-ray images with 97% accuracy and 96% F1-score. Conducted big data analysis of bike rental data with Apache Spark and Python to optimize urban transport strategies for Transport for London. Analyzed hospital data with Power BI to create dashboards on admissions, treatment outcomes, and resource utilization. Explored deep learning for medical diagnosis, evaluating CNN architectures and creating an ensemble model achieving 99% accuracy.

Data Analyst at Globacom Ltd

September 1, 2023 - September 1, 2023

Analyzed customer complaint data to uncover recurring issues, contributing to a 20% reduction in churn and higher customer satisfaction. Built automated network performance dashboards and partnered with revenue assurance and fraud management to improve decision-making. Audited Call Detail Records to detect anomalies, scheduling automated SQL, Python, and Linux scripts that reduced data processing time by 40%. Forecasted network traffic and capacity needs to optimize resource allocation, and developed a SQL database with an ETL pipeline to improve data accuracy and cut report generation time by 60%. Mentored junior analysts in charging system auditing to reduce billing errors by 25% and led data migration for over 40 million subscribers with UAT support.

Billing System Analyst / Engineer at Globacom Ltd

October 1, 2018 - October 1, 2018

Maintained and monitored large-scale billing systems, performing SQL-driven reconciliation and validation to ensure data accuracy and regulatory compliance. Automated reporting workflows using SQL, Excel, and VBA to cut manual report generation time by over 40%. Conducted root-cause analysis of billing discrepancies and service anomalies, supporting system fixes to reduce errors. Collaborated with IT, finance, and operations to improve cross-departmental data quality and supported billing system upgrade projects.