CRO Manager (use.ai)

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/

One of the RubyLabs’ portfolio companies is looking for a highly experienced and specialized Senior Growth Product Manager to join our team. The primary focus of this role is to drive top-of-funnel growth through optimizing our funnel stages, leading to user registration and payment. This role requires direct experience in managing and improving web funnels in a B2C environment.

• Launch and iterate on product experiments daily and weekly across the funnel.

• Own and manage the experimentation backlog (prioritization, planning, execution).

• Write clear PRDs and experiment briefs for fast developer execution.

• Generate experiment ideas using UX research, funnel analysis, and data insights (via Mixpanel and Claude).

• Own the full experiment lifecycle (idea → build → release → measure → decision).

• Work directly with developers, providing continuous feedback to ensure fast delivery and accuracy.

• Manage release flow across dev, staging, and production environments.

• Ensure accurate tracking, analytics, and A/B test setup (via GrowthBook and Mixpanel).

• Monitor performance and deliver daily/weekly insights and iteration decisions.

• Control the end-to-end experimentation pipeline, ensuring speed, quality, and KPI alignment.

• 5+ years of combined experience in product management and growth, with at least 3+ years in growth/product optimization roles.

• Proven track record of optimizing web funnels in B2C (B2B is a plus), directly impacting CR, LTV, and CPA.

• At least 1 year of experience in a high-velocity growth environment, where experiments are launched daily or weekly.

• Strong hands-on experience running A/B tests end-to-end (hypothesis → setup → analysis → decision).

• Deep proficiency with product analytics tools, especially Mixpanel (funnels, cohorts, event-based analysis).

• Experience with experimentation and feature flagging tools like GrowthBook.

• Ability to write clear, developer-ready PRDs and experiment specs with precise acceptance criteria.

• Strong understanding of event tracking, data integrity, and experiment measurement frameworks.

• Experience working closely with engineers, with solid understanding of dev → staging → production workflows.

• High execution speed with ability to manage multiple concurrent experiments and hit strict KPI targets.

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.

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/1tzxGX4Uu7Ts_HCLFXESKLnKaaBfVCPf1f9AYZPrkjJM/preview?tab=t.0

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

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)

• Interview with Product Owner (30 minutes)

• Interview with Lead QA Engineer (20 minutes)

• Interview with Growth Manager (45 minutes)

• Final Interview with the Managing Director (20 minutes)

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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