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
Company Logo of Tableau Software
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
Logo of Microsoft Power BI
Skilled
Hold to flip
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
Logo of Microsoft SQL Server
Skilled
Hold to flip
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

Logo of the Python programming language
Competent
Hold to flip
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

Logo of the R programming language
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.