Author: Jose S
How to choose an AI model for work: speed, cost, privacy, and risk
Leaderboards are a hobby. Work needs latency, cost, privacy, and failure modes. Here is a practical scorecard for picking a model when the output will touch real decisions.
Apache Airflow tutorial: build your first data pipeline (DAG)
Orchestration is a ticket rail, not a junk drawer. Learn what an Airflow DAG is, how tasks and dependencies map to real runbook stations, and how to sketch…
How to organize the files in a dbt project so your team can find things
A messy dbt repo ages fast. Map staging, intermediate, and marts with clear naming and one grain per model so the project scales past your first three tables…
Power BI for beginners: build the data model before the charts
Power BI starts with the model, not the chart. Learn star schemas, relationships, and grain so your first report answers a real question instead of fighting double counts…
The analyst career ladder: what each level means if you don’t manage people
Analyst titles vary wildly. Part 1 of Analyst career path translates the IC ladder into plain English: execute, own slices, multi-team work, and senior bets, with signals you…
