Data Visualization and data storytelling Services by Yusuf D

Data Visualization and data storytelling Services by Yusuf DData Visualization and data storytelling Services by Yusuf D

Data Visualization and data storytelling Services

Yusuf D

Contact for pricing

About this service

Summary

Most teams have data.

Fewer teams trust it enough to make decisions with it.

I help businesses turn raw data into clear, reliable insights they can confidently act on. My focus is not just building dashboards, but fixing the data and definitions underneath so reporting stays accurate as the business grows.

My work typically includes:

YoY and MoM performance analysis

KPI dashboards built for clarity, not decoration

Clean, scalable data models

Automated data refresh and scheduled reporting

Sensible access control and reporting reliability

I work primarily with Power BI, SQL, and Excel, with a strong emphasis on data correctness, metric alignment, and maintainable models.

Clients usually reach out when:

Dashboards look good but create more questions than answers

Numbers don’t match across reports

Reporting is manual, fragile, or slow

Stakeholders don’t fully trust the data

My approach is straightforward: understand the business question first, fix the data underneath it, then design reporting that supports real decisions. I communicate clearly, validate assumptions early, and avoid unnecessary complexity.

What I Can Help You With

End-to-end Power BI dashboards

YoY / MoM analysis and performance tracking

KPI definition and reporting

Data modeling and optimization

Automated refresh pipelines

Excel analysis (structured models, pivots, charts)

SQL querying for analytics and reporting

Remote-friendly. Contract or short-term projects welcome.

If you’re unsure exactly what you need yet, that’s fine. We can start with a short call to clarify the problem before committing to a build.

FAQs

What is your experience with DAX, pivot table and power pivot
Yes, I am proficient in DAX, pivot table and power pivot. I have been using it for over three years to create complex calculations and measures for various data models.
How often can I expect to hear from you if i buy this project?
I'm very responsive so u can reach out to me anytime and be rest assured that I respond swiftly.
How good Are you with data manipulation?
Yes I can. recently completed a similar project, combining different file in excel and power query into a single file and more
What is your proficiency with SQL
Proficiency with SQL • Expert (7 + years) designing and optimizing complex queries (CTEs, window functions, sub-queries) • Performance tuning (indexing, execution plans) for high-volume e-commerce datasets • ETL development and schema design in PostgreSQL, MySQL, Snowflake and SQL Server environments

What's included

Data visualization
Data visualization on Power BI and Microsoft Excel, including charts, pivot tables, graphs, maps, reports and dashboards
Data wrangleing
Data cleaning, analysis, modelling, and reporting,
Automation
Automated Excel and Zapier workflows that eliminate repetitive tasks and support accurate, scalable data analysis.
Data manipulation and database management and optimization
Data manipulation on Power Query • Database management with SQL

Example projects

Interactive Sales Dashboard

Web Scraping for Market Research

E-commerce Data Analysis

Skills and tools

Data Analyst

Data Modelling Analyst

Data Scientist

Data Analysis

Microsoft Excel

Microsoft Power BI

PostgreSQL

Industries

E-Commerce

Food & Beverage

Retail