Data Engineering

The Guerrilla Guide to Data Engineering Interviews

The Scenario That Changes Everything Picture this: You’re sitting in an interview room—or more likely these days, staring at a Zoom window with your carefully curated bookshelf background—and the interviewer asks you about data quality. “Tell me about your experience with data quality,” they say. You have two choices. Choice A: “Data quality is really important in data engineering. It involves ensuring data is accurate, complete, consistent, and timely. I believe strongly in implementing data quality checks throughout the pipeline.”

Sunday, January 11, 2026 Read

Why Your Ideas Die in Planning Meetings

The silence that kills good ideas One morning, I sat in yet another meeting where we just spent two weeks backfilling a table then we found it was riddled with issues with the data. Even if we resolve the issue, it would then be another 2 weeks to backfill the data, there has to be a better way. “So, what do we think? Give me your best ideas for tackling this.”

Wednesday, January 7, 2026 Read

Building Your First AWS Data Pipeline: A Guide for Data Professionals Who've Never Touched Cloud Infrastructure

The spreadsheet that changed everything Here’s a story that might sound familiar. You’re pulling data from an API—maybe daily sales numbers, maybe customer interactions, maybe something else entirely. Every morning, you open your laptop, run a Python script, save the CSV somewhere, and get on with your actual work. It takes maybe five minutes, but it’s five minutes you can’t forget about. Miss a day and you’ve got a gap in your data. Go on vacation? Better hope someone remembers to run your script.

Wednesday, November 26, 2025 Read

When Your Data Quality Fails at 9 PM on a Friday

When everything goes wrong at once It’s 9 PM on a Friday. You’re halfway through your second beer, finally relaxing after a brutal week. Your phone buzzes. Then it buzzes again. And again. The support team’s in full panic mode, your manager’s calling, and somewhere in Melbourne, two very angry guests are standing outside the same Airbnb property—both holding confirmation emails that say the place is theirs for the weekend.

Saturday, November 22, 2025 Read

Balancing Data Accessibility and Privacy in Financial Services

The Data Tightrope: Where Accessibility Meets Privacy Let’s face it—in today’s data landscape, data is simultaneously your most valuable asset and your biggest potential liability. Finding that sweet spot where data remains accessible enough to drive business decisions while being locked down enough to satisfy privacy regulations. It’s not just about ticking compliance boxes—it’s about maintaining customer trust while still extracting every bit of analytical value from your data assets.

Friday, November 21, 2025 Read

Why Dimensional Modeling Isn't Dead—It's Just Getting Started

The Great Data Modeling Debate Nobody Asked For Another meeting where someone confidently declared, “We don’t need data modeling anymore—just dump everything in the data lake and let analysts figure it out.” I’ve heard variations of this statement for years now, in meetings or at conferences. The pitch is always the same: traditional data warehousing is dead, dimensional modeling is a relic from the 90s, and modern big data tools have made structured modeling obsolete. Schema-on-read is the future. Agility over architecture.

Friday, November 7, 2025 Read

Financial Independence: Your Shield Against Job Loss Fear

The Fear That Follows You Home One evening, after pushing another commit past midnight, I couldn’t bring myself to sit up. Not because I was tired—though I was. Not because the commit had issues—it went smoothly, and tested all fine. I couldn’t get up because I’d spent the entire day with a knot in my stomach, wondering if our team would survive the next round of “organizational restructuring.” Here’s what made it worse: I had no idea if my fear was rational. Were we really at risk? Or was I just catastrophizing? The uncertainty was eating me alive.

Sunday, November 2, 2025 Read

Building AI Agents with Claude Code

Introduction Imagine you’re reviewing a pull request with dozens of SQL files, each containing complex queries for your data pipeline. You spot inconsistent formatting, or syntax which doesn’t work with your infrastructure. Sound familiar? It’s common for data professionals to struggle with maintaining consistent SQL standards across their projects, especially when working with specialized platforms and it can be time consuming to review these elements within a peer review. It would be better use of time to focus on the hard thinking elements, like logic etc. However these small syntax or style issues, can be distracting. Well at least they are for me.

Saturday, September 13, 2025 Read

Continuous Integration for Data Teams: Beyond the Buzzwords

The Day Everything Broke (And How CI Could Have Saved Us) Picture this: It’s 9 AM on a Monday, and your Slack is exploding. The executive dashboard is showing impossible numbers. Customer support is fielding complaints about incorrect billing amounts. The marketing team is questioning why their conversion metrics suddenly dropped to zero. You trace it back to a seemingly innocent change you merged Friday afternoon—a simple column rename that seemed harmless enough. But that “harmless” change cascaded through your entire data pipeline, breaking downstream models, dashboards, and automated reports.

Saturday, June 28, 2025 Read

dbt Fusion: The Engine Upgrade That's Got Everyone Talking

When Your Favorite Tool Gets a Makeover You know that feeling when your favorite app suddenly changes its interface? That mix of excitement and anxiety about whether the changes will actually improve your workflow or just mess with muscle memory you’ve spent years building. That’s exactly what happened when dbt Labs dropped dbt Fusion on the analytics engineering community. The reactions were… let’s call them passionate. Some folks were celebrating like they’d just discovered fire, while others were questioning whether this marked the beginning of the end for open-source dbt.

Saturday, June 21, 2025 Read

Streamlining Data Pipeline Reliability: The Write-Audit-Publish Pattern

Introduction: Why Safe Data Pipelines Matter In the world of data engineering, there’s a constant challenge we all face: how do we ensure our production data remains reliable and error-free when deploying updates? Anyone who’s experienced the cold sweat of a bad deployment affecting critical business data knows this pain all too well. Enter the Write-Audit-Publish pattern—a robust approach that can significantly reduce the risk of data pipeline failures. This pattern, which shares DNA with the well-known Blue-Green deployment strategy from software engineering, creates a safety net that can save your team countless hours of troubleshooting and emergency fixes.

Sunday, May 18, 2025 Read

The Art and Science of Conceptual Data Modeling: Building Pipelines That Last

Introduction: Why Conceptual Data Modeling Makes or Breaks Your Pipeline Ever found yourself staring at a faulty data pipeline, wondering where it all went wrong? Join the club. I’ve been there too many times to count. The hard truth? Most pipeline failures aren’t technical issues—they’re conceptual ones. We get so caught up in the how (tools, languages, frameworks) that we completely miss the what and why of our data needs.

Saturday, May 17, 2025 Read