Jan van Roozendaal

Business Intelligence Analyst. Specialized in Data Visualization.
Educated in Statistical Data Analysis, IT Management and Business Economics.

An Intro

I created this website in the summer of 2020 to showcase my portfolio items built from different tools and programming languages.

As of current, I am active in BI, more specifically in data analysis and data visualization.

In the meanwhile, I invite you to check out my portfolio.

Skill Deck

Tableau

Data Visualization

Certified

Specialist

Hold to flip

4+ years of experience.

Tableau Desktop Specialist & former Tableau Server Certified Professional.

Started from version 10.0, comfortable with latest versions.

Power BI

Data Visualization

Certified

Skilled

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1 year of experience.

Earned Microsoft's DA-100 exam, 'Analyzing Data with Microsoft Power BI'.

Earned the title of 'Microsoft Certified:
Data Analyst Associate'.

(T-)SQL

Querying Data

Certified

Skilled

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3+ years of experience.

Earned Microsoft's 70-761 'Querying Data with Transact-SQL' certification.

Familiar working with SQL Server & SQL Server Management Studio.

Python

Programming

Competent

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6+ months of experience.

Mainly trained on problem-solving skills and coding algorithms.

Aiming for PCEP & PCAP certification. For visualization, interested in learning Dash to create interactive dashboards with Plotly.

R

Programming

Competent

Hold to flip

1,5 years of experience.

Familiar with statistical inference, data visualization, analyzing high-dimensional data, machine learning and latent variable modelling.