Willy Aguirre

#AuDHD | Open Source Enthusiast, @GoogleOSS (2015) alum

[FINAL FANTASY XIV @FF_XIV_EN]

Presenting the next expansion coming to FINAL FANTASY XIV: Evercold!

[Darshil | Data Engineer👨🏻‍🔧 @parmardarshil07]

🧠 How to Crack a Data Engineering Interview (The 5-Step Game Plan that Actually Works)

Let’s be honest.

Cracking a Data Engineering interview in 2026 isn’t just about knowing Python or writing a SQL query.

It’s about handling real data, debugging production issues, and telling your story like an engineer who’s solved problems, not just followed tutorials.

So here’s the 5-step process I wish someone gave me earlier 👇

✅ Step 1: Nail the Fundamentals
You can’t build a strong pipeline on a weak foundation.
Master:
- Python (with focus on data manipulation)
- SQL (window functions, CTEs, performance)
- Fundamentals of Data Engineering

⚙️ Step 2: Build End-to-End Projects
Hiring managers don’t want hobby scripts.
They want to see:
- Data ingestion from APIs/files
- Transformation using dbt or Spark
- Scheduling via Airflow
- Data Warehouse loading (Snowflake/BigQuery)

📦 Step 3: Learn Real-World Tools
You’re not just coding, you’re solving problems at scale.

Add these to your toolkit:
- PySpark / Spark + Databricks
- Kafka for streaming data
- Airflow for orchestration
- Snowflake for analytics

🧠 Step 4: Practice Interview Questions (The Right Way)
Don’t just memorize.

Simulate:
- Coding rounds (PySpark, SQL, Scala)
- System design: “How would you design Uber's trip pipeline?”
- Data modeling: SCDs, Fact/Dim tables
- Scenario-based questions: “A DAG failed yesterday. What will you check?”

🎯 Step 5: Tell Your Story
Resume = Your trailer. Interview = The movie.

Frame your experience like this:
“Built real-time data pipeline using Kafka + Spark streaming 1M events/hour to enable real-time fraud detection in payments pipeline.”

Not:
“Worked on data pipelines.”

Most people fail not because they’re under-skilled, but because they’re under-prepared.

→ They jump between YouTube videos
→ Spend weeks on LeetCode, not realising DE interviews are different
→ Build projects but can’t explain “why” they did something

💡 Fix that with structure.

[Willy Aguirre @AutieUnit]

@CristianRtheA Fue parte de eso 300 empleados :(

[0x34 @0xashku]

Cybersecurity certifications

[Python Coding @clcoding]

MACHINE LEARNING WITH PYTHON PROGRAMMING: A Practical Guide to Building Intelligent Applications with Python
https://t.co/DEIQzxv4v2

[Willy Aguirre @AutieUnit]

@therjrajesh Share

[Python Coding @clcoding]

Understanding Machine Learning: From Theory to Algorithms (PDF Book) https://t.co/SL9r8KHXBB

[Python Coding @clcoding]

I asked AI to create a picture of a Python programmer. 🙂

[Bethesda @bethesda]

The 4th will be with you… always. #MayThe4th

[Call for Code @CallforCode]

2023 #callforcode Global Challenge registration is officially open!
Let’s create AI solutions to help fight climate change. Answer the call and register today: https://t.co/kQrVKyuEue

[Chema Alonso @chemaalonso]

El lado del mal - ChatGPT hace código con SQL Injection, CoPilot mete Security Bugs y los programadores que usan Asistentes AI hacen más "Buggy Code" https://t.co/QKyt0dEcji #Copilot #ChatGPT #AI #IA #SQLInjection #Bug

[Willy Aguirre @AutieUnit]

@ppamsito OHHH 🙌

[Willy Aguirre @AutieUnit]

@gpmeneses

[Willy Aguirre @AutieUnit]

¿Recuerdas cuando te uniste a Twitter? ¡Yo sí! #MiAniversarioDeTwitter

[Trendy Disco Ben @foxhandybread]

Go home Jupiter, you're drunk @physicsJ

[IGN @IGN]

How game devs reacted to criticisms brought on by the GTA 6 leak:

[Willy Aguirre @AutieUnit]

@gpmeneses F por las empanadas

[Willy Aguirre @AutieUnit]

@FortniteBR Zero Build 🤣

[Willy Aguirre @AutieUnit]

@FortniteBR happy to dead in couple of minutes 🥲

[FINAL FANTASY XIV @FF_XIV_EN]

Presenting the full music video of #Endwalker's main theme! 🎬✨

Watch it in high resolution on the official #FFXIV YouTube channel! 📺 https://t.co/pWKb5bd6fi