9 Databricks decisions that reveal your real seniority (and one that only looks senior)
The Databricks Data EngineerShow Notes
Three in the morning. The nightly job that loads the orders table died halfway. Half the tasks are green, and the rerun button is right there. What you do in the next ten seconds says more about your level than anything on your resume.
Nobody places you by your title or your years. They place you by a pattern of routine calls made fast, in the dark, and everyone around you can read it except you.
In this episode: - The ten-second question to ask before you rerun anything that writes - Why the fastest fix for a slow Databricks job is often the one that renews its cost every month - How the flaky job you quietly restart every week stops being a defect and starts being weather - What it means that most data engineers cannot price their own job, and what changes when they can - The one call that reads as the most senior contribution in the room and almost never is
This episode is for Databricks data engineers who have the title, or want it, and want to know how hiring managers actually place them. Whether you are prepping for a senior interview or wondering why your level has not moved in two review cycles, you will walk away with a lens for your very next decision.
--- Helping 18,000+ Databricks data engineers become seniors: interview like seniors, execute like seniors, think like seniors.
Follow The Databricks Data Engineer for new episodes every Monday, Wednesday, and Friday.
LinkedIn: linkedin.com/in/jrlasak Newsletter: dataengineer.wiki
#DataEngineering #Databricks #DataEngineer #CareerGrowth #ApacheSpark #DeltaLake
More from The Databricks Data Engineer
The rollout is done. Every production table migrated to Unity Catalog, every one owned by a team group, and the revenue table carries a certified check mark. The platform lead posts in Slack: fully governed. Monday morning, finance replies in the thread. The revenue on the finance dashboard and the revenue in the sales deck are about three percent apart. Which one's real?
Two proposals sit on a head of data's desk, both about the nightly pipeline that feeds the finance dashboard. One swaps the full reload for incremental loads with Auto Loader: it finishes in a fraction of the time and it's cheaper every month after the first. The other keeps the full reload, puts it on a bigger job cluster and starts it an hour earlier. It costs more. Forever. She asks one question, "What happens if this breaks on quarter close?", and approves the second one.
Your nightly Databricks job ran long, so you open the Spark UI. Two hundred tasks. One hundred ninety-nine finished in about a minute. One is still running, and it's been running for forty. You double the cluster and rerun it. Same forty minutes. Nearly twice the bill.
Sam is four years into a Databricks role, up for senior this cycle. Merged pull requests on the ingestion layer. The nightly job he rescued at three in the morning when the orders table stopped landing. Then his manager asks for one call where the answer wasn't obvious, he framed it, and he lived with the result. Sam starts three different sentences. None of them finish.
Open the workspace. Start a cluster. Get coffee. Come back, and sometimes it's ready. If you've been doing this a few years you can feel that wait in your shoulders, and it's the least interesting part of the story.