About usRuby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.Com/about-us/About the roleRubyLabs is looking for a hands-on Junior CRO Manager to join one of our product growth teams. You'll work directly with our Senior CRO Manager, turning a fast-moving testing roadmap into live experiments, new landing pages, and new funnels.This is an execution role first. You'll take hypotheses from idea to live test - building the designs yourself with AI tools, setting up the experiments, and keeping the pipeline moving - while bringing your own test ideas to the table. The more your judgment proves out, the more of the roadmap you own.ResponsibilitiesBuild new landing pages and funnels: create alternative landing page variants and funnel flows to test messaging, structure,



and offers.Prepare designs with Claude: turn hypotheses into experiment mockups and variants using AI tools, without waiting on a designer.Set up experiments: configure A/B tests, define success metrics, and verify tracking before anything goes live.Manage the experiment pipeline: keep tickets clear and prioritized, brief engineers, and follow each test from setup to rollout.Contribute test ideas: study the funnel, competitors, and user behavior, and bring hypotheses to the roadmap alongside the senior's.Support analysis and documentation: help read results, document learnings, and keep the testing roadmap current.Qualifications1+ years of hands-on experience in CRO, growth, product, or digital marketing - you've built pages, run or supported tests, or shipped funnel changes before.Design sense: you can tell a clean, convincing page from a cluttered one, and you can build one yourself with

📌 Junior Cro Manager (Madrid)
🏢 Ruby Labs
📍 Madrid