AI is eating Data: how hiring shifted in VC-backed startups
In 2020, data scientists and data engineers made up over 75% of all AI/data hires at venture-backed startups. By Q4 2025, that share dropped below 44%, replaced by a surge in AI engineering and machine learning roles. The chart below, based on Carta's compensation report, lets you explore this shift interactively — toggle roles on and off, switch between stacked and grouped views, and hover for exact numbers at any quarter.
Unit economics & financial modeling in practice
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