Hello! I am a data-driven BI and data analyst professional based in Accra, Ghana. I enjoy collaborating with teams to translate data into actionable insights, optimize processes, and deliver user-friendly solutions. I have hands-on experience building data-driven tools, such as a retrieval augmented generation (RAG) system for PDF questions, an automated drug authentication system using a vision transformer, and customer segmentation using clustering. I am continually expanding my skills in data cleaning, visualization, ETL, and web development to help teams achieve their goals.…

JOLEEN AFIA AFUMMAA AKROFI

Hello! I am a data-driven BI and data analyst professional based in Accra, Ghana. I enjoy collaborating with teams to translate data into actionable insights, optimize processes, and deliver user-friendly solutions. I have hands-on experience building data-driven tools, such as a retrieval augmented generation (RAG) system for PDF questions, an automated drug authentication system using a vision transformer, and customer segmentation using clustering. I am continually expanding my skills in data cleaning, visualization, ETL, and web development to help teams achieve their goals.…

Available to hire

Hello! I am a data-driven BI and data analyst professional based in Accra, Ghana. I enjoy collaborating with teams to translate data into actionable insights, optimize processes, and deliver user-friendly solutions.

I have hands-on experience building data-driven tools, such as a retrieval augmented generation (RAG) system for PDF questions, an automated drug authentication system using a vision transformer, and customer segmentation using clustering. I am continually expanding my skills in data cleaning, visualization, ETL, and web development to help teams achieve their goals.

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Skills

Experience Level

Microsoft Excel
Expert
Microsoft Word
Expert
Data Visualization
Expert
Tableau
Expert
Python
Expert
CSS
Expert
Power BI
Expert
ETL
Intermediate
SQL
Intermediate
GitHub
Intermediate
Web Design
Intermediate
Docker
Beginner
React JS
Beginner
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Language

English
Advanced

Work Experience

Junior BI Associate at Dataware Tech Ghana Limited
September 1, 2024 - Present
Maintain and update existing BI tools and systems; assist in collecting, cleaning and analyzing data from various internal and external sources; support creation of reports, dashboards, and visualizations to communicate insights and trends to stakeholders. Collaborate with team members to understand clients’ data needs and support team to provide actionable insights.
Intern, Junior Frontend Developer at Grey Parrot.IO Ltd
June 1, 2022 - August 31, 2023
Used markup languages like HTML to create user-friendly web pages. Maintained and improved websites. Collaborated with back-end developers and web designers to improve usability of websites.
Librarian at Academic City University College
January 1, 2020 - January 31, 2021
Shelved, catalogued and recorded school books in the library using Koha library management system. Managed and collected books for the library database with Library Genesis, Open Library, PDF Drive and FTVE Library management system. Developed an end-of-month report summary on the use of books within the library using Microsoft Word.

Education

Bachelor of Science in Computer Science (Computational Science and Data Analytics) at Academic City University College
July 1, 2024 - February 6, 2026
General Science: Science Education at St. John's Grammar High School
January 1, 2020 - February 6, 2026
Computational Science And Data Analytics at Academic City University College
January 11, 2030 - July 1, 2024

Qualifications

Tableau Fundamentals Certification
January 1, 2023 - February 6, 2026

Industry Experience

Software & Internet, Education, Professional Services, Other, Media & Entertainment
    paper Customer Segmentation System

    Developed a customer segmentation system based on seasons by implementing the K- means and Hierarchical clustering algorithm. A dataset on customers from Kaggle called shopping behavior was used and highlighted the importance of season in the sales of items. It was proven that customers are very present in shops during the Summer season and as such, colorful clothing and items should be sold around this period.