Junior CRO Manager

Ruby Labs Ltd; España; Remote; EUR 30,000 - 42,000; Full time

Benefits offered by this job

Remote work

Unlimited PTO

Paid holidays

MacBook provided

Contractor agreement

Job summary

Ruby Labs is seeking a hands-on Junior CRO Manager to join a product growth team. You will turn a fast-moving testing roadmap into live experiments, new landing pages, and new funnels, working directly with the Senior CRO Manager.

This execution role starts with delivering viable variants quickly using AI tools and setting up experiments end-to-end. You will own more of the roadmap as your hypotheses prove out, ship quality variants, and grow your testing influence within a small, fast-paced

Qualifications

• 1+ years in CRO/growth/digital marketing with page tests or funnel changes.
• Design sense to build clean, convincing pages.
• Bias for shipping: ship viable variants quickly and keep cycles moving.
• Proactive approach to tasks and ownership.
• Strong English communication (written and verbal).
• Good judgment on conversion opportunities.
• Comfortable with ambiguity and shifting priorities.
• AI-native with Claude or similar tools.
• Attention to detail in setup and checks.

Responsibilities

• Build new landing pages and funnels: test messaging, structure, and offers.
• Prepare designs with Claude: turn hypotheses into experiment mockups.
• Set up experiments: configure A/B tests and verify tracking.
• Manage the experiment pipeline: briefs to engineers and track progress.
• Contribute test ideas: study funnel, competitors, and user behavior.
• Support analysis and documentation: read results and document learnings.

Skills

CRO experience

Growth mindset

Digital marketing

English communication

Education

Bachelor's degree

Tools

Claude

AI tools

Job description

About us

Ruby 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 role

RubyLabs 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.

Responsibilities

• Build 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.

Qualifications

• 1+ 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 the tools at hand.
• Bias for shipping: you'd rather get a solid variant live today than polish it for a week, and you keep the cycle moving.
• Proactive: you don't wait for the next ticket; you spot what needs doing and do it.
• Strong English: clear written and verbal communication. You'll write hypotheses, tickets, and summaries daily.
• Good judgment on conversion opportunities: you can look at a landing page or funnel step and sense what's worth testing and why.
• Comfortable with ambiguity: priorities shift, briefs are incomplete, and data is messy. You make a sensible call and keep moving.
• AI-native habits: you already use Claude or similar tools in your work and want to push further.
• Attention to detail: experiments live or die on setup, and you check twice.

Nice to Have

• Experience with landing page builders, no-code tools, or basic HTML/CSS.
• Familiarity with Mixpanel, Google Analytics, GrowthBook, or similar.
• Exposure to subscription or SaaS funnels.
• Bachelor's degree in a relevant field.

What We Offer

• Direct mentorship from a Senior CRO Manager and a full view of how a high-volume experimentation process runs.
• Ownership that grows with results: start with execution, earn your own tests.
• Autonomy and speed: small team, fast decisions, no bureaucracy.
• The latest AI tools as a core part of daily work, not a side experiment.
• Room to grow into a CRO Specialist role as you deliver.

Location

Ruby Labs operates within the CET (Central European Time) zone. Applicants from any country are welcome to apply for the position as long as they are located within approximately ± 4 hours of CET. This ensures optimal collaboration and communication during working hours.

Benefits

Discover the perks of being part of our vibrant team! We offer:

• Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
• Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
• Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
• Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
• Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere. Read more about it here: https://docs.google.com/document/d/1nkrN76JlZkbKj9WSOhlT1_mni_CZeDkHdwfIjPXVwvk/preview?tab=t.0#heading=h.ndsdl4wapxtt

Be part of our fast-growing team and seize this excellent opportunity for personal and professional growth!

Interview Process

After submitting your application, we conduct a thorough review which typically takes 3 to 5 days, but may occasionally take longer due to the volume of applications received. If we see a potential fit, we proceed with the following steps:

• Recruiter Screening (40 minutes)
• Technical Interview (60 minutes)
• Final Interview (30 minutes)

Life at Ruby Labs

At Ruby Labs, we move fast, aim high, and expect the same from our team. We're not here to play small-we're here to build, grow, and win. That means we look for people who are ambitious, driven, and ready to give their best every single day.

This is a place for individuals who thrive under pressure, embrace challenges, and see opportunity in every obstacle. If you're hungry to achieve, motivated by impact, and want to grow at the speed of your own ambition, Ruby Labs offers the platform to make it happen.

Here, effort is matched with reward. We recognize those who go all in and deliver results, and we create space for people who want more—more responsibility, more growth, and more success.

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