Nnaemezue Obi-Eyisi – Medium

Nnaemezue Obi-Eyisi

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I Almost Got Fired Because of Pandas on Databricks — Here’s What You Should Learn From My Mistake

Just because your code works doesn’t mean it scales.

May 3

I Almost Got Fired Because of Pandas on Databricks — Here’s What You Should Learn From My Mistake

May 3

From Data Analyst to Data Engineer: Why Mastering SQL MERGE is Your Key to Success

As a data analyst, you’re a master of uncovering insights — slicing and dicing datasets with SQL SELECT statements to answer critical…

3d ago

From Data Analyst to Data Engineer: Why Mastering SQL MERGE is Your Key to Success

3d ago

🛠️ Build a Fast, Easy, and Robust PDF-to-Data Pipeline in Azure

In an enterprise setting — especially on Azure — processing PDFs into structured, searchable data is a critical capability. Whether you’re…

4d ago

🛠️ Build a Fast, Easy, and Robust PDF-to-Data Pipeline in Azure

4d ago

🧠 Can Databricks Replace Your BI Semantic Layer? Yes —BUT…

Why Semantic Layers Matter (Now More Than Ever)

6d ago

🧠 Can Databricks Replace Your BI Semantic Layer? Yes —BUT…

6d ago

🧠The SQL Cheat Code That Will Instantly Upgrade Your Interview Skills

When it comes to SQL interviews, there’s one category of questions that trips up even the most experienced analysts and data engineers:

Jul 7

🧠The SQL Cheat Code That Will Instantly Upgrade Your Interview Skills

Jul 7

🔍 You Can’t Control the Mess — But You Can Control How You Clean It: Handling Data Quality in…

One of the biggest challenges data engineers face isn’t about scaling systems or optimizing performance — it’s dealing with data we don’t…

Jul 5

🔍 You Can’t Control the Mess — But You Can Control How You Clean It: Handling Data Quality in…

Jul 5

You Don’t Need to Build AI Models to Thrive in the AI Era — But You Must Be More Human

When cars were invented in the early 20th century, it was a technological marvel.

Jul 2

You Don’t Need to Build AI Models to Thrive in the AI Era — But You Must Be More Human

Jul 2

“We Need It in 5 Days” — How to Handle Unrealistic Stakeholder Expectations as a Data Engineer

“Can we get the pipeline ready in 5 days?”

Jun 28

“We Need It in 5 Days” — How to Handle Unrealistic Stakeholder Expectations as a Data Engineer

Jun 28

DAG in Data Engineering — What It Really Means (And Why It Matters)

Let me be honest with you.

Jun 27

DAG in Data Engineering — What It Really Means (And Why It Matters)

Jun 27

Why It’s So Hard to Break Into Data Engineering as a Junior

…and how you can overcome it

Jun 26

Why It’s So Hard to Break Into Data Engineering as a Junior

Jun 26

Nnaemezue Obi-Eyisi

Nnaemezue Obi-Eyisi

I am passionate about empowering, educating, and encouraging individuals pursuing a career in data engineering. Currently a Senior Data Engineer at Capgemini

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