Tag
8 articles tagged #Data Science.
P.01Amazon closes Mechanical Turk and Ground Truth's human workforce on September 30, 2026, after 21 years. The dates that matter, and where teams are moving.
P.022026 rate data shows two opposite trends: AI-assisted competition pushing junior rates down while seniors who can supervise AI output command more than ever.
P.03A data analyst is not a junior data scientist or a dashboard builder. What the role requires, how it differs, and the screen that finds decision-changing work.
P.04Calculate sample size before you start, from your baseline rate and the smallest effect worth detecting, then run to it. Stopping early gives you noise.
P.05Data scientist and ML engineer are two different jobs. The distinction, what a strong data scientist does, and how to screen for real analytical judgment.
P.06Data engineers build the pipelines, warehouses, and transformation layers. They aren't data scientists, backend developers, or analysts. How to hire for it.
P.07DuckDB runs OLAP queries directly in your process, on files on your laptop, without a server. Here's how to use it and when it beats spinning up BigQuery or Redshift.
P.08Polars beats pandas on speed through Arrow memory, multi-threading, and lazy evaluation by default. Here's when the switch is worth it and how to migrate.