Senior CRO Manager

Remote from: Europe
Annual salary: Undisclosed
Salary information is not provided for this position. Check our Salary Directory to estimate the average compensation for similar roles.
Department: Marketing & Sales
Employment type: Full Time,
Job posted: 10 Jun 2026
Apply before: 10 Jul 2026
Experience level: Senior
Views / Applies: 8 / 2

Crafting Consumer Products of Tomorrow

Actively Hiring

AI Summary

Ruby Labs is seeking a Senior CRO Manager to own the full optimization loop for a document management platform. This role requires deep funnel analysis, hypothesis generation, and direct collaboration with engineers to design and implement tests using Next.js and TailwindCSS. The ideal candidate has 3+ years of hands-on CRO experience with subscription or SaaS funnels, an AI-native workflow, and a bias for shipping fast. They will work across the entire user journey from acquisition to monetization, leveraging tools like Mixpanel and GrowthBook. The position is remote within CET ±4 hours, with a compensation structure that rewards exceeding targets.

Role DNA

Job Complexity

Easy Hard

Pace & Pressure

Relaxed Fast-paced

Autonomy Level

Guided Full Ownership

Communication Load

Independent Highly Collaborative

AI Insight The role demands strategic thinking across the full user journey, technical execution with AI tools, and statistical rigor, requiring a high level of expertise and adaptability.

Salary Analysis

AI Insight The salary range is not specified, but for a Senior CRO Manager in the US, the market median is around $125,000. Considering the role's emphasis on ownership and performance-based upside, the total compensation could be competitive for top performers.

Key Skills

Conversion Rate Optimization A/B Testing Funnel Analysis UI/UX Design Next.js TailwindCSS Mixpanel GrowthBook Statistical Analysis Product Experimentation

Cover Letter Sample

I am excited to apply for the Senior CRO Manager position at Ruby Labs. With over 4 years of experience optimizing conversion funnels for SaaS products, I have a proven track record of driving double-digit lifts in key metrics through iterative testing and deep analysis. I thrive in fast-paced environments where data-driven decisions and rapid experimentation are core to the culture.

Your description of owning the full optimization loop end-to-end resonates with my approach: I combine rigorous hypothesis generation with high-fidelity design specs and work closely with engineering teams to ensure flawless implementation. I am also highly proficient with AI tools to accelerate research and analysis, aligning with your AI-native workflow requirement.

I am particularly drawn to the opportunity to impact the entire user journey, from acquisition to monetization, and the prospect of a compensation structure that rewards tangible results. I am confident that my experience with subscription funnels and tools like Mixpanel and GrowthBook will allow me to contribute immediately.

I look forward to the possibility of discussing how I can help scale your document management platform. Thank you for your consideration.

Possible Interview Questions

Describe a time you identified a high-impact optimization opportunity through funnel analysis. What was the hypothesis, how did you test it, and what were the results?

I analyzed the checkout flow for a SaaS product and noticed a 20% drop-off on the payment page. Hypothesis: Adding trust badges and simplifying the form would reduce friction. I designed a variant with fewer fields and security logos, implemented an A/B test, and achieved a 12% increase in conversion rate with 95% confidence.

How do you integrate AI tools into your daily CRO workflow? Give a specific example.

I use AI for rapid hypothesis generation by feeding historical test data and user behavior into a language model to suggest new test ideas. For example, I prompted it with 'Based on a 40% bounce rate on the pricing page, what are three possible reasons and testable changes?' and then prototyped the top suggestion using TailwindCSS in hours.

This role requires designing high-fidelity wireframes in code (Next.js + TailwindCSS). Are you comfortable with that? How do you bridge the gap between design and development?

Yes, I have experience building interfaces directly in TailwindCSS and Next.js. I start with a clear visual spec and then translate it into components, ensuring responsive and consistent styling. I collaborate with engineers via pair coding sessions to guarantee pixel-perfect implementation.

Walk me through your process for prioritizing tests when you have multiple competing opportunities.

I use an impact-effort matrix. I estimate potential uplift and confidence from historical data and user research, then estimate implementation effort. High-impact, low-effort tests are prioritized first. I also consider strategic alignment with quarterly goals and maintain a continuously prioritized roadmap.

How do you ensure statistical rigor in your test analysis? What tools do you use?

I use GrowthBook for Bayesian and frequentist analysis, setting a minimum sample size and significance level (95%) before stopping tests. I check for peeking issues and use sequential testing methods. I also run sanity checks like A/A tests to validate the experimentation system.

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

We are building a category-defining document management platform. We are way past the MVP stage, battle-tested in production, recently profitable, serving hundreds of thousands of customers globally.
We are rapidly scaling with multiple products and new funnels. Currently, we are looking for a Senior CRO Manager who thrives on ownership, speed, and building things that scale. Not a 9-5. Read on if you want challenge, autonomy, and fast growth.

This isn’t a hand-off role. You’ll own the full optimization loop end-to-end: deep funnel analysis, hypothesis generation, high-fidelity wireframes and visual specs, working directly with engineers, and the performance outcomes that follow.
We are not just looking at landing page optimizations, in this role you’ll be working across the entire user journey, from acquisition through activation, retention, and monetization. The pace is fast and iterative. We ship in days, learn, and keep the engine running.

We’ve built a compensation structure that directly rewards people who exceed targets. Top performers see meaningful financial upside tied to their impact.

Key Responsibilities

Own end-to-end optimization cycles: research → hypothesis → design → test → rollout, while keeping the cycles short.
Use AI tools daily to accelerate research, ideation, design, analysis, and documentation. This is core to how we work, not an afterthought.
Perform deep funnel and product analysis across the full user journey – acquisition, activation, retention, monetization – plus competitive benchmarking to surface high-impact opportunities.
Design high-fidelity wireframes and visual specs that clearly communicate your vision while protecting brand integrity. We’re a code-first team – design is built in Next.js and TailwindCSS, not Figma.
Partner with engineers to ensure flawless test implementation and rapid deployment.
Analyze results with statistical rigor and make confident scaling decisions.
Document learnings and maintain a continuously prioritized testing roadmap.
Present insights and results clearly to stakeholders, building alignment and momentum.

Qualifications

Proven CRO results: 3+ years of hands-on CRO experience, ideally with subscription or SaaS funnels, with documented performance lifts.
Funnel + product thinking: You don’t just optimize landing pages. You think about the full user journey and how product decisions compound with funnel decisions.
AI-native workflow: You actively integrate AI into your daily process – prompting, prototyping, analyzing, drafting – and have opinions about what actually works. Almost a must.
Design taste: Strong UI/UX sensibility and the ability to recognize and create ideas that convert. You can build compelling, detailed visual specs yourself.
Speed and iteration: Bias for shipping. You’d rather get two well-designed tests live today than one perfect test in a week, and you keep the cycle moving.
Analytical depth: Skilled in Mixpanel, GrowthBook, Google Analytics, or similar.
Execution excellence: Remarkable attention to detail in fast-moving environments.
Ownership: Self-driven, proactive, fully accountable for outcomes.
Fluent English: strong written and verbal communication.

Nice to have

Exposure to marketing attribution models, UTM parameters, and ROAS measurement.
Strong project management skills with the ability to prioritize and execute quickly.
Bachelor’s degree in a relevant field.

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 (90 minutes)
Final Interview (60 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.

#LI-Remote

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