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5 Red Flags of Mediocre Data Engineers

These 5 signs mean you may never become a senior engineer unless you address your flaws.
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Data Engineering

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The Only Guide You’ll Need for Testing Your Data Pipelines With Confidence
By the end, you’ll walk away with a working pipeline test suite, custom GX checkpoints, and a README you’d be proud to ship.
 • 
Yordan Ivanov
Graph Data Structures for Data Engineers Who Never Took CS101
Your gentle intro to graphs through real examples from data pipelines, DAGs, and lineage — designed for engineers who never learned this in school.
 • 
Yordan Ivanov
3
13 Command-Line Tools to 10x Your Productivity as a Data Engineer
If you work with data and live in the terminal, these CLI tools belong in your daily toolkit. Lightweight, fast, and built for real productivity.
 • 
Yordan Ivanov
Meet uv: The Blazing-Fast Python Package Manager Data Engineers Love
Say goodbye to sluggish dependency management. uv is a modern, high-performance package manager designed for Python power users. Here’s everything you…
 • 
Yordan Ivanov
2
Mastering Apache Airflow: The Hands-On Guide to Workflow Automation
From setting up Apache Airflow to writing dynamic DAGs, this hands-on tutorial covers everything you need to know to master workflow automation and take…
 • 
Yordan Ivanov
3

Career in Data

View all
5 Red Flags of Mediocre Data Engineers
These 5 signs mean you may never become a senior engineer unless you address your flaws.
 • 
Yordan Ivanov
The Week of a Head of Data Engineering
Here’s how my week looks and what you can expect if you want to become a head of data
 • 
Yordan Ivanov
How to Build a Job Matrix that Grows Teams and Builds Clarity
This is the exact framework I use to keep my team motivated, track growth, and make sure everyone knows what it takes to move from one level to the…
 • 
Yordan Ivanov
Turn Raw Data into Action: Master Data Storytelling for Better Communication
Raw data alone doesn’t drive action—stories do. Learn how to use the “What, So What, Now What” framework to turn complex data into compelling narratives…
 • 
Yordan Ivanov
Beyond Senior Data Engineer: Skills & Strategies for the Next Big Step
Going beyond senior isn’t just about writing better code. It’s about impact, strategy, and navigating complex systems. Here’s how to take the next step…
 • 
Yordan Ivanov

Data and Business

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Why the Hard Skills Obsession Is Misleading Every Aspiring Data Engineer
Every aspiring data engineer focuses on hard skills. Few understand early connections are what actually accelerate success.
 • 
Yordan Ivanov
How I Scope Minimum Viable Data Products That Prove Value Fast
You don’t need a perfect pipeline to prove value. I share my method for building lightweight data solutions that get early feedback and build trust…
 • 
Yordan Ivanov
Europe’s Cloud Crisis: Why US Tech Giants Hold the Power & What Must Change
Europe’s data infrastructure is built on US clouds. But what if that changes? With rising tensions and no European alternative, data engineers must…
 • 
Yordan Ivanov
 and 
Adrian Stanek
Why Businesses Ignore Data Engineering (and How to Fix It)
Most companies underfund data engineering—until it's too late. Here are three key reasons why it happens and how you can turn things around.
 • 
Yordan Ivanov
2
Essential Data Engineering Stakeholders: The Roles That Shape Your Work
Discover the important stakeholders data engineers engage with and why building strong relationships with them can shape your job.
 • 
Yordan Ivanov
4

Recent posts

View all
The Week of a Head of Data Engineering
Here’s how my week looks and what you can expect if you want to become a head of data
 • 
Yordan Ivanov
The Only Guide You’ll Need for Testing Your Data Pipelines With Confidence
By the end, you’ll walk away with a working pipeline test suite, custom GX checkpoints, and a README you’d be proud to ship.
 • 
Yordan Ivanov
Why the Hard Skills Obsession Is Misleading Every Aspiring Data Engineer
Every aspiring data engineer focuses on hard skills. Few understand early connections are what actually accelerate success.
 • 
Yordan Ivanov
Graph Data Structures for Data Engineers Who Never Took CS101
Your gentle intro to graphs through real examples from data pipelines, DAGs, and lineage — designed for engineers who never learned this in school.
 • 
Yordan Ivanov
3
How I Scope Minimum Viable Data Products That Prove Value Fast
You don’t need a perfect pipeline to prove value. I share my method for building lightweight data solutions that get early feedback and build trust…
 • 
Yordan Ivanov
How to Build a Job Matrix that Grows Teams and Builds Clarity
This is the exact framework I use to keep my team motivated, track growth, and make sure everyone knows what it takes to move from one level to the…
 • 
Yordan Ivanov
13 Command-Line Tools to 10x Your Productivity as a Data Engineer
If you work with data and live in the terminal, these CLI tools belong in your daily toolkit. Lightweight, fast, and built for real productivity.
 • 
Yordan Ivanov
Turn Raw Data into Action: Master Data Storytelling for Better Communication
Raw data alone doesn’t drive action—stories do. Learn how to use the “What, So What, Now What” framework to turn complex data into compelling narratives…
 • 
Yordan Ivanov
Beyond Senior Data Engineer: Skills & Strategies for the Next Big Step
Going beyond senior isn’t just about writing better code. It’s about impact, strategy, and navigating complex systems. Here’s how to take the next step…
 • 
Yordan Ivanov
Meet uv: The Blazing-Fast Python Package Manager Data Engineers Love
Say goodbye to sluggish dependency management. uv is a modern, high-performance package manager designed for Python power users. Here’s everything you…
 • 
Yordan Ivanov
2
Europe’s Cloud Crisis: Why US Tech Giants Hold the Power & What Must Change
Europe’s data infrastructure is built on US clouds. But what if that changes? With rising tensions and no European alternative, data engineers must…
 • 
Yordan Ivanov
 and 
Adrian Stanek
Why Businesses Ignore Data Engineering (and How to Fix It)
Most companies underfund data engineering—until it's too late. Here are three key reasons why it happens and how you can turn things around.
 • 
Yordan Ivanov
2
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