De $12m a $120m en ARR, Growth y Experimentación | Ramiro Castro (ex Sr. Growth PM, Mural)

4 Apr 2024 · 76 min
Episode

4 Apr 2024 · 76 min

0:00

This is a Spanish-language podcast interview (recorded April 4, 2024) where Dylan Rosemberg interviews Ramiro Castro about his Growth work at Mural. Ramiro describes his path from engineering into Growth, contrasts early "growth hacking"/A/B-first approaches with more modern growth frameworks and processes, and recounts building a Growth organization at Mural during COVID-triggered hypergrowth. Key workstreams were onboarding/activation, acquisition (especially viral invite flows and "visitor" flows), and monetization (free→paid). Concrete wins mentioned: fixing invite signup friction increased sign-up completion from ~30% to ~85–86%; a permissions/visitor flow change produced an ~800% lift in a primary acquisition metric for that experiment; pandemic-driven demand produced spikes (Ramiro cites ~15x) that accelerated growth from low/mid ARR into unicorn scale (title frames growth from ~$12M to ~$120M ARR). The episode emphasizes (1) start from a single clear business metric, (2) map levers that move it, (3) size expected impact, and (4) run experiments decisively (prefer faster 50/50 rollout to learn quicker).

Questions this episode answers

April 4, 2024.

From roughly $12M (title) to $120M ARR; Ramiro also references "15 to 120 million" in the conversation.

From about 30% before to roughly 85–86% after the changes.

An ~800% improvement in the experiment's primary metric (visitor→member related).

He cites roughly a 15x (or "15x or more") spike in new users.

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