Index / sergiu-pascu
5 years growing a product used by millions. Strategy, execution, and the technical layer underneath.
Marketing strategy, lifecycle automation, and the technical execution to go with it.
What I do
Services
I also build — Next.js sites, Firebase backends, Cloudflare deployments. Ask me.
SEO
Get found by the right people. Keyword strategy, technical audits, and content structure that builds traffic over time.
Paid Ads (PPC)
Google and Meta campaigns managed for actual return. No wasted budget, no vanity metrics.
CRM & Email
Lifecycle campaigns that turn signups into buyers and buyers into repeat customers. Built in Braze or whatever you use.
Analytics & Tracking
GA4, GTM, dashboards. Know exactly what's working and what's burning money.
30+
global markets managed
5+
years at Mondly / Pearson
€0.01
CPV on YouTube — 3–5x below benchmark
4
fullstack projects shipped
Background
I spent 5 years running growth and CRM at Mondly, a language learning product used by millions across 30+ countries. I work across the full stack: marketing strategy, lifecycle automation, and technical execution. Next.js, Firebase, Cloudflare, PostgreSQL. Now available for businesses and engineering teams directly.
Stack & tooling
Under the hood
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Stack & tooling
Under the hood
Tools I work with daily: Braze, VWO, Looker, GA4, GTM, Google Ads, Meta Ads Manager, Next.js, Firebase, TypeScript.
This site is built with Next.js, deployed on Cloudflare Pages. Some side projects live on GitHub — ask me if you're curious.