Marcus Oberdiek

It’s all about versatility! Marcus brings a unique blend of skills and experiences to the table. His passion for the natural sciences began with his training as a physics laboratory technician and was further enriched by earning a Master of Engineering in biomedical engineering.

Sharing knowledge has always been a driving force. This passion led to roles as an IT trainer and fitness instructor. Through additional qualifications as a quality manager, he guided companies in improving their processes and optimizing quality management systems.

As a spa manager on a cruise ship, he mastered the organization of complex operations while honing skills in personnel management and customer service. His interest in technology never faded, inspiring him to complete a web development bootcamp. Now, he leverages his diverse expertise to help businesses structure and present their data effectively.

Skills

  • Data Visualization Tools: Tableau, PowerBI

  • Data Preparation: Tableau Prep, Alteryx, SQL

  • Programming: HTML, CSS, Java Script, Next.js, React Database Query

  • Database: MongoDB Atlas, mongoose, Cloudinary

Key competencies:

  • Project Management

  • Teamwork

  • Empathy

  • Effective

  • Communication

  • Presentation

  • Continuous learning

Certifications:

  • 4 month fulltime live remote "Web Developer Bootcamp" (neue fische)

  • DGQ Quality Manager

Short term projects

  • City Cleaning Company

    Developed an Alteryx workflow to standardize and compare quality data from two evaluation systems using spatial data. Subsequently, a Tableau dashboard was designed to visualize whether the cleaning frequency directly impacted the cleanliness ratings of roads.

  • Consultancy for electricity and gas prices

    Developed a Tableau dashboard showcasing various electricity and gas pricing models along with their price trends over time, allowing for easy comparison. The client uses this dashboard to recommend the most suitable pricing tariff to their customers.

  • Company for delivery services

    Assisted in creating a Tableau dashboard that analyzes customer satisfaction based on survey data, with a primary focus on the Net Promoter Score. The dashboard is used internally to identify areas for improvement in the delivery process and to determine which delivery depots receive the highest and lowest ratings.

  • Marketing Solution Company

    Created a Tableau dashboard, including a mobile version, that provides users with insights into the performance of their products across various sales platforms. It also highlights whether sales initiatives have impacted the sales figures.

Certifications

Blog Posts

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Wed 11 Dec 2024 | Marcus Oberdiek
How to Use Hierarchies and Groupings in Tableau?
Hierarchies and groupings in Tableau are powerful tools to structure your data and create interactive dashboards. They allow you to analyze information efficiently without requiring complex calculations or additional data preparation
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Tue 10 Dec 2024 | Marcus Oberdiek
Filter Types in Tableau Dashboards: Everything You Need to Know
Filters are a cornerstone of Tableau dashboards, giving users control over the data they see. Tableau offers various filter types and display options designed specifically for dashboards
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Thu 05 Dec 2024 | Marcus Oberdiek
With Slicer is nicer: Take Full Control of Your Power BI Reports
Slicers are one of the most powerful tools in Power BI for creating interactive and dynamic reports. They allow users to filter data in real time and focus on the insights they need. In this blog, I’ll show you how to use slicers effectively and share tips to make your reports more user-friendly
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Thu 05 Dec 2024 | Marcus Oberdiek
Interactive Scatter Plots in Tableau: Explore Data with Drilldowns and Tooltips
Scatter plots are a great tool to visualize the relationship between two measures. They become even more powerful when you make them interactive. With Tableau, you can enhance scatter plots to allow users to filter, explore, and analyze data points in greater detail
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Wed 04 Dec 2024 | Marcus Oberdiek
Your First Alteryx Workflow: A Beginner's Guide
Getting started with Alteryx can feel daunting, but with a simple step-by-step process, you'll quickly learn to create and execute your first workflow. This guide will help you import, clean, and export data using a sample Excel file
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Mon 02 Dec 2024 | Marcus Oberdiek
Personal Project - My Cruise Map
In this blog, I describe my approach to my personal project. The task was to come up with a personal project to visualise data that is important to me
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Wed 27 Nov 2024 | Marcus Oberdiek
Dashboard Week - Day 2
The Superstore with PowerBI We have already done a lot of exercises with the Superstore. And the last time we worked with PowerBi was over 2 months ago
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Mon 25 Nov 2024 | Marcus Oberdiek
Dashboard Week - Day 1
Create a CV in Tableau Desktop The last week of the 4 month training at The Data School! And as always, it ends with Dashboard Week. Task: Create your CV in Tableau Desktop. First of all, I thought about where I would get all the data from
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Sun 17 Nov 2024 | Marcus Oberdiek
Projektmanagement im Kundenprojekt
Wir haben gerade unser letztes Kundenprojekt erfolgreich abgeschlossen, und ich möchte heute darüber berichten, wie ich meine Rolle als Projektmanager erlebt habe
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Tue 22 Oct 2024 | Marcus Oberdiek
Calendar View - Nice overview
Everyone knows the calendar view and is familiar with reading it. Birthdays, vacations and other important dates were entered by hand. With this view, it is also very easy and clear to display data. And this is how you can create a calendar view. Step 1: Connecting with your database
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Fri 18 Oct 2024 | Marcus Oberdiek
Big Data - Good Data?
Why companies need to understand their data landscape In the modern business world, there is hardly a more valuable resource than data. Companies collect it all the time: Sales figures, customer data, production information, social media interactions, website analytics and much more
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Thu 19 Sep 2024 | Marcus Oberdiek
Fast Filter with Power BI Bookmark
Power BI is a powerful tool for data visualization and analysis. One of the most useful features that Power BI offers is bookmarks. Bookmarks allow users to save specific views of their reports and retrieve them later
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Sun 08 Sep 2024 | Marcus Oberdiek
Power BI vs. Tableau
Ease of use and data visualization The two leading platforms in the field of data visualization and analysis are Tableau from Salesforce and Power BI from Microsoft. We have now had our introductory training in both. I had already worked with Tableau for my application dashboard
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Tue 27 Aug 2024 | Marcus Oberdiek
Hello Data!
Whew, here we go. My first blog entry on my journey to become a Data School Consultant . I have been waiting with great anticipation for the day that it finally starts. Another new chapter in my life. So much has already happened in the first few weeks
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