Jamiu Arewa

Jamiu Arewa

Data Analyst | Data Visualization Specialist
Lagos, NG.

About

Highly proficient Data Analyst with a strong foundation in statistical analysis, Python programming, and advanced data visualization tools including Tableau and Power BI.
Proven expertise in extracting actionable insights from complex datasets, demonstrated by delivering data-driven solutions that have significantly improved business outcomes and operational efficiency.
Adept at leveraging the latest advancements in data analysis to solve complex problems and communicate findings effectively to drive strategic decisions.

Projects

Tableau Public Portfolio

Summary

A comprehensive collection of interactive data visualizations and dashboards published on Tableau Public, showcasing expertise in data exploration, trend analysis, and insight communication.

Work

Camanda Technologies
|

Data Analyst

Lagos, Lagos State, Nigeria

Summary

Led data analysis efforts within a cross-functional team to develop a flexible CRM solution, successfully integrating it into multiple businesses.

Highlights

Collaborated with developers and UI/UX designers to design and implement a flexible CRM solution, enhancing client relationship management capabilities for 3 businesses.

Extracted critical data from Dataflows, Dataverse, and Google BigQuery to Power BI, enabling high-level analysis and comprehensive reporting for strategic decision-making.

Published and maintained 18 diverse reports on Microsoft Power BI Service, supporting operations, finance, and utility units with actionable insights for appropriate end-users/clients.

Mentored and trained over a dozen interns on advanced Excel and Power BI techniques, elevating their proficiency from beginner to PL-300 level.

Hammad Technologies and Consultancy Limited
|

Data Analyst

Lagos, Lagos State, Nigeria

Summary

Drove comprehensive market analysis and data quality initiatives, leveraging advanced tools to deliver actionable insights and improve data-driven decision-making.

Highlights

Designed and deployed surveys using Google Forms, Open Data Kit (ODK), and MS Excel to gather market and economic data, providing critical insights into trader dynamics in Ota market.

Executed rigorous data cleaning and validation on various datasets, reducing discrepancies and enhancing data quality and consistency for accurate analysis.

Developed automated data collection templates using Excel Visual Basic for Application (VBA) for health, inventory, sales, HR, and payroll computations, significantly improving data entry efficiency.

Performed advanced data modeling and validation, ensuring data integrity and reliability for reporting and analytical purposes.

Created multiple interactive dashboards, transforming complex datasets into clear, actionable insights that facilitated informed decision-making for stakeholders.

Ohmic Concept and Engineering Limited
|

Data Collection/Entry Clerk

Lagos, Lagos State, Nigeria

Summary

Managed comprehensive data collection and analysis for a start-up, directly contributing to significant revenue growth through data-driven recommendations.

Highlights

Collected and meticulously documented critical client, supplier, employee, sales, and inventory data, establishing a foundational database for business operations.

Processed and analyzed collected data to inform strategic decision-making, contributing to a 300% revenue increase within 3 months for the startup.

Developed and implemented data collection methodologies that supported rapid business growth and operational efficiency.

Education

Altschool Africa
Lagos, Lagos State, Nigeria

Diploma

Data Analysis

Courses

Extensive training on Excel for Exploratory Data Analysis (EDA), data cleaning, and validation.

Rigorous training on SQL for data extraction and processing.

Power BI Data Analysis and Expression (DAX), Power Query, visualization, and interactive dashboards.

Tableau Visualization and Dashboards.

Python for EDA, data cleaning, and visualization.

Olusegun Agagu University of Science and Technology
Okitipupa, Ondo State, Nigeria

Bachelor of Technology (B. TECH)

Physics

Grade: 3.64

References