Hewan Zewdu

Hewan has experience in Tableau Desktop, Tableau Prep, Power Query, Power BI, Alteryx and SQL. She has used her skill in various industries including finance, sports, and entertainment industries, Hewan has gained valuable experience, including creating schemas and using Snowflake and SQL to handle datasets with 100 million rows. 

She's worked as part of the team and led as a Project Manager to create clear and practical data visualisations that help clients make informed decisions. Outputs from client projects included dashboards, reports, Tableau Prep Workflows, and thorough documentation. 

Hewan adapts to work with clients' requirements and their level of experience using data analysis tools, creating both interactive drill through Power BI reports, along with more simple and to-the-point style reports for overall data visualisation. She has also created and provided training sessions to the public, and has created social media content for the Data School, such as YouTube tutorial videos and blog posts.

Hewan is a MSc Chemistry graduate from the University of Nottingham with experience in Principal Component Analysis for green chemistry and machine learning for anti-cancer therapy, both of which led her to the Data School.

Outside of work, she loves coffee and worked as a barista for 8 months. She enjoys travelling and learning about new cultures, reading, and graphic design, and is hoping to start roller-skating soon!

Certifications

Blog Posts

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Thu 28 Mar 2024 | Hewan Zewdu
Dashboard Week Day 4
Definitely need as drink after this one! For todays challenge we were asked to go to https://www.thecocktaildb.com/ and use webscraping and an API in Alteryx to get data on a list of ~600 cocktails to create a dashboard of our choosing
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Wed 27 Mar 2024 | Hewan Zewdu
Dashboard Week Days 2/3
For days 2 and 3 of dashboard week we were tasked with taking part in Tableau's Data + Movies challenge. This was a task to use their IMDb data to create a dashboard of your choosing, with the help of their starter kit
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Mon 25 Mar 2024 | Hewan Zewdu
Dashboard Week Day 1: Google Is Your Friend!
If in doubt and in a time crunch, remember you can still google!
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Fri 08 Mar 2024 | Hewan Zewdu
Tableau Data Analyst Certification
5 tips for the Tableau Data Analyst Certification!
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Thu 07 Mar 2024 | Hewan Zewdu
Reflecting on My Data School Experience: Changes I'd Make If Applying Again
5 tips to consider when applying to the Data School based on things I've learnt throughout training so far
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Thu 07 Mar 2024 | Hewan Zewdu
Sorting by Field in Tableau
A great quick fix to manually sort categories in a dimension in Tableau
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Thu 07 Mar 2024 | Hewan Zewdu
4 Efficient Ways to Visualise Change Over Time in Power BI
Here we go through four straightforward methods for illustrate change over time to help you harness the full potential of your data ASAP
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Thu 07 Mar 2024 | Hewan Zewdu
Stop Grey-Out in Tableau using False Highlight
Learn how to banish grey-outs in Tableau for good to help maintain clarity and precision in your visualizations, ensuring every selection remains vibrant!
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Tue 05 Mar 2024 | Hewan Zewdu
Master time with Date Tables in Power BI!
Unlock the secrets of time in Power BI using date tables! In this blog we create a date table with a sorted field and use it to create a simple line chart.
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Tue 09 Jan 2024 | Hewan Zewdu
Power Up Your Skills: Mastering Power Query Training Tips!
Help others unlock the potential of Power Query with some training tips!
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Wed 03 Jan 2024 | Hewan Zewdu
New Measures in PowerQuery
Follow along to create a simple DAX calculation!
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Tue 02 Jan 2024 | Hewan Zewdu
Parameters in PowerQuery
Unsure how to use parameters to specify file path? Hopefully this blog post helps!
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Tue 12 Dec 2023 | Hewan Zewdu
Sets and Filtering
In our second week at the Data School we got stuck in using Tableau Desktop and learnt about sets! Read on to find out how to use sets and filtering.
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Fri 08 Dec 2023 | Hewan Zewdu
Splitting in Tableau Prep Builder
Have you found yourself tangled in a web of data chaos? Try out Tableau Prep Builder's splitting function – your secret weapon for effortlessly untangling and making sense of those messy datasets.
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Wed 06 Dec 2023 | Hewan Zewdu
Who Knew Data Could Be Dirty?
Once you've your hands on some data, it's not as simple as plugging in numbers for analysis! In this post we explore clean vs dirty data, and a couple of signs to watch out for before diving into the good stuff!
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