Who actually uses these products,
and what made them stay.

The Amplitude Growth Analyst

A data analyst, growth analyst, or analytics engineer at a Series B–D company who owns Amplitude as the source of truth for product behavior. They are technical enough to write SQL but prefer not to for exploratory analysis. They've mastered the Amplitude chart types. They build dashboards that PMs and executives use but don't fully understand. They're the person in the room who says "let's look at the data" and then actually pulls it up.

“The head of product wants to know which activation milestone most predicts 30-day retention.”

The PostHog Growth Engineer

A growth engineer, product engineer, or technical PM who uses PostHog as their all-in-one growth stack — analytics, feature flags, A/B tests, session replay. They chose PostHog because they didn't want to stitch together Amplitude, LaunchDarkly, and Hotjar. They think in funnels, retention curves, and statistical significance. They are technical enough to self-serve but product-minded enough to care about the "so what" behind the data.

“It happened mid-workflow — the growth engineer is running an A/B test on the onboarding flow.”