Raphael Waweru

RW

Open to opportunities

Raphael Waweru

@raphaelwaweru

Detail-oriented Junior Data Analyst with a passion for insights.

What I'm looking for

I am looking for a role that fosters growth, collaboration, and innovation in data analysis.

I am a detail-oriented Junior Data Analyst with a Bachelor’s in Information Technology from Maseno University. My expertise lies in data analysis, MS SQL, and data visualization, where I have hands-on experience in structuring databases, querying data, and building interactive dashboards. I am passionate about transforming raw data into actionable insights that drive business decisions.

Throughout my academic and project experiences, I have developed a strong proficiency in Excel, Tableau, and MS SQL. I have successfully developed SQL data warehouses, conducted supermarket sales analysis, and created HR dashboards that support data-driven decision-making. My ability to interpret data, identify trends, and present complex findings to both technical and non-technical audiences has been a key asset in my analytical journey.

Experience

Work history, roles, and key accomplishments

N/

Junior Data Analyst

N/A

Feb 2023 - Feb 2023 (0 months)

Detail-oriented Junior Data Analyst with hands-on experience in data analysis, database management, and data visualization. Skilled in transforming raw data into actionable insights through SQL and Tableau. Developed SQL data warehouses and dashboards for sales and HR analysis.

Data Analysis SQL Tableau Excel Data Visualization ETL Data Warehousing Data Cleaning Communication

N/

SQL Data Warehouse Project

N/A

Feb 2023 - Feb 2023 (0 months)

Designed and implemented a data warehouse for structured storage and retrieval of large datasets. Developed SQL scripts for ETL processes and optimized database performance.

MS SQL Server ETL Data Warehousing Database Optimization

N/

Supermarket Sales Analysis

N/A

Feb 2023 - Feb 2023 (0 months)

Conducted sales data analysis for a supermarket chain, tracking revenue and customer trends. Built an interactive Tableau dashboard to visualize key business metrics.

Excel Tableau Data Analysis Customer Segmentation

N/

MS SQL Data Analysis Project

N/A

Feb 2023 - Feb 2023 (0 months)

Wrote complex SQL queries to clean and analyze structured datasets. Designed a relational database model for business-critical information storage.

MS SQL Server Data Modelling SQL Queries Database Design Query Optimization

N/

HR Dashboard – Employee Insights

N/A

Feb 2023 - Feb 2023 (0 months)

Analyzed HR data to identify performance and absenteeism trends. Created a dynamic Tableau dashboard to visualize key HR metrics.

Tableau Excel HR Analytics Data Visualization Performance Analysis

Education

Degrees, certifications, and relevant coursework

MU

Maseno University

Bachelor of Science, Information Technology

2017 - 2022

Activities and societies: Relevant coursework included Data Analytics, Database Management, Statistics, SQL Programming, and Business Intelligence.

Studied Information Technology with a focus on data analytics, database management, and business intelligence. Developed an interactive Tableau dashboard for the final year project to analyze student performance trends.

Tech stack

Software and tools used professionally

Tableau

GitHub

Gmail

Microsoft Excel

SQL

Availability

Open to opportunities

Location

Kenya

Authorized to work in

Portfolio

Salary expectations

50k-70k USD

Job categories

Data Analyst Data Scientist Business Intelligence Analyst Data Science Analyst

Skills

Data Analysis SQL Data Visualization Excel Tableau ETL Data Warehousing Data Cleaning Problem Solving Communication GitHub Gmail

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Raphael Waweru - Junior Data Analyst - N/A | Himalayas