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10 Interview Questions for Senior Databricks Data Engineer Roles ($180-220k)
Where Technical Skills Meet Leadership Thinking
Feb 16
•
Jakub Lasak
7
2
Code Reviews at Scale: What Fortune 500 Companies Actually Do (And Why Your Quick LGTM Is Fine)
The 80/20 framework that focuses your attention on schema changes, resource sizing, and failure paths - while safely speeding up the rest
Feb 11
•
Jakub Lasak
2
10 Interview Questions for Junior Databricks Data Engineer Roles ($80-100k)
The Fundamentals That Get You Hired
Feb 9
•
Jakub Lasak
10
Spark Performance Interview Questions: What Interviewers Actually Evaluate
Why listing optimization techniques proves you're mid-level, and the diagnostic framework that demonstrates production-grade thinking
Feb 2
•
Jakub Lasak
11
January 2026
How Liquid Clustering Actually Works in Databricks
Why automatic data organization replaces weekly OPTIMIZE jobs, eliminates partition explosions, and lets you change clustering keys without rewriting…
Jan 28
•
Jakub Lasak
28
1
The Databricks Hiring Manager's Guide: Why Certifications Don't Matter
The 3 specific signals that separate senior engineers from the stack of 100 identical resumes.
Jan 21
•
Jakub Lasak
14
1
The Databricks Compute Selection Guide: Jobs, All-Purpose, SQL Warehouses, and Serverless
Why scheduled jobs on All-Purpose clusters are bleeding thousands of dollars a month - and how to fix it in 15 minutes
Jan 14
•
Jakub Lasak
9
1
The Databricks Debugging Maturity Ladder: Junior to Principal
How engineers progress through trial-and-error, analysis paralysis, and over-engineering before earning the wisdom to find the one bottleneck that…
Jan 7
•
Jakub Lasak
16
2
The $150k vs $250k Databricks Data Engineer: Why Technical Skills Aren’t Enough
The 18-month roadmap from "my work should speak for itself" to strategic visibility, high-impact projects, and data-driven compensation growth
Jan 5
•
Jakub Lasak
9
1
December 2025
The Spark Cluster Parallelism Guide: Why 32 Nodes Can Be Slower Than 4
The task-to-core ratio that separates $600/month waste from systematic diagnosis - with the complete decision framework for repartition vs. scale
Dec 31, 2025
•
Jakub Lasak
3
Partition Pruning vs Data Skipping: A Databricks Interview Deep Dive
How Spark's optimization layers work at directory, file, and row levels - and why understanding the difference wins offers
Dec 29, 2025
•
Jakub Lasak
7
1
Understanding Spark Shuffle: The Complete Architecture Guide
Why your 10-minute job became 2 hours, how data skew causes 100GB → 500GB inflation, and the three-phase mechanism behind every GROUP BY
Dec 23, 2025
•
Jakub Lasak
10
2
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