Hi, I’m
Oluwatetisimi Longe
Junior Data Analyst
Ado-Ekiti, Ekiti State
Summary
Results-oriented Junior Data Analyst with a proven ability to transform complex datasets into clear,actionable visual insights. Leveraged an intensive professional internship at PremierHub to master the end-to-end data pipeline, specializing in Power BI dashboard development, DAX, and advanced Excel data modeling. Adept at utilizing Power Query for automated data cleaning and streamlining reporting workflows. Committed to supporting data-driven cultures by delivering high-quality analysis and technical precision.
Overview
1
Certification
3
Languages
6
years of post-secondary education
Work History
PremierHub
Junior Data Analyst (Internship)
12.2025 - 12.2025
Job overview
- Accelerated Data Immersion: Completed an intensive two-week training program at PremierHub focused on the end-to-end data lifecycle, from ingestion to visualization.
- Power BI Development: Designed and deployed interactive Power BI dashboards to track key business metrics, improving data accessibility for non-technical stakeholders.
- Data Transformation: Utilized Power Query to clean, shape, and transform raw datasets, ensuring 100% data integrity for departmental reporting.
- Advanced Excel Analysis: Leveraged Pivot Tables, XLOOKUP, and advanced formulas to perform exploratory data analysis(EDA) and identify sales trends.
- SQL Fundamentals: Applied basic SQL queries to extract and filter data from organizational databases for summary reporting.
Education
Afe Babalola University, Ado-Ekiti.Ado-Ekiti, Ekiti State, Nigeria
Bachelor of Science from Computer Science
09.2025 - Current
Living Fountain International SchoolAbuja
09.2019 - 07.2025
Skills
Microsoft Power BI: Power Query, DAX, and Data Modeling
Data Visualization: Interactive Dashboards and Insightful Reporting
Microsoft Excel: Advanced Formulas(XLOOKUP, INDEX/MATCH)
Data Analysis: Pivot Tables and Trend Identification
Database Management: SQL and Database Fundamentals
Data Processing: ETL Processes and Data Cleaning
Exploratory Data Analysis(EDA): Identifying Outliers and Patterns
Technical Communication: Presenting Data Findings to Stakeholders
Critical Thinking: Assessing data quality and logical consistency
Collaboration: Working within a team to meat project deadlines
Certification
[Professional Certification of completion] Big Data, Data Analysis & Visualization Training - [10/12/25 - 22/12/25]]
Availability
See my work availability
Not Available
Available
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Timeline
Junior Data Analyst (Internship)
PremierHub
12.2025 - 12.2025
Afe Babalola University, Ado-Ekiti.
Bachelor of Science from Computer Science
09.2025 - Current
Living Fountain International School
09.2019 - 07.2025