Job Overview
Location
European Union
Job Type
Full-time
Category
Software Engineering
Date Posted
March 21, 2026
Full Job Description
đź“‹ Description
- • The CRO Manager role at Ruby Labs Ltd. is critical to driving measurable improvements in conversion performance across reverse lookup products, directly impacting user acquisition and revenue growth in the health, education, and entertainment sectors.
- • This position ensures that optimization efforts are rigorously executed, data-informed, and scalable, enabling the company to make faster, smarter product decisions based on real user behavior.
- • Day to day, the CRO Manager will support end-to-end CRO cycles including research, hypothesis development, test design, and collaboration with engineering to implement experiments accurately.
- • They will assist in funnel analysis to pinpoint drop-off points and opportunities, translate insights into actionable test briefs, and maintain a prioritized experimentation backlog.
- • The role involves tracking experiment status and results, analyzing outcomes using statistical reasoning, and documenting learnings to build a shared knowledge base.
- • They will communicate progress and outcomes clearly to product, engineering, and leadership stakeholders, ensuring alignment and transparency.
- • The CRO Manager will work closely with the Head of Product and Managing Director, contributing to a culture of experimentation and continuous learning.
- • Ruby Labs is a fast-moving, innovative tech company operating consumer-facing products across multiple industries, with a strong emphasis on growth, ownership, and impact.
- • The team values autonomy, accountability, and a growth mindset, offering mentorship from seasoned leaders and exposure to high-traffic funnels where small improvements yield significant results.
- • In this role, the individual will deepen their expertise in CRO methodologies, gain hands-on experience with tools like Mixpanel, GrowthBook, and Tableau, and develop stronger cross-functional collaboration skills.
- • They will have the opportunity to evolve into a Senior CRO or Growth role, taking on greater strategic influence while building a track record of measurable optimization wins.
🎯 Requirements
- • 1.5–3 years of hands-on experience running CRO experiments, preferably on high-traffic consumer or subscription funnels.
- • Strong understanding of the CRO lifecycle, including hypothesis formation, test design, execution, and post-test analysis.
- • Ability to independently analyze experiment results and funnel metrics using analytics tools such as Mixpanel, GrowthBook, or Tableau.
- • Detail-oriented and reliable in managing experiments from concept to production, ensuring quality and timeliness.
- • Comfortable collaborating with engineers and product teams to ensure accurate implementation of test variations.
- • Strong organizational skills to manage multiple experiments, timelines, and priorities effectively.
- • Growth mindset: curious, eager to learn, and motivated to expand CRO and experimentation expertise over time.
- • Fluent English with strong written and verbal communication skills for clear stakeholder alignment.
🏖️ Benefits
- • Fully remote work environment with flexibility to work from anywhere within ±4 hours of CET, supporting work-life balance.
- • Unlimited paid time off (PTO) to recharge and prioritize well-being without accrual tracking.
- • Paid national holidays observed across the employee’s local jurisdiction.
- • Company-provided MacBook for all employees requiring one, ensuring seamless productivity.
- • Flexible Independent Contractor Agreement offering autonomy, tax advantages, and entrepreneurial flexibility.
- • Mentorship from experienced growth and optimization leaders with a clear path to senior CRO or Growth roles.
- • Opportunity to work on high-impact, high-volume funnels with real, measurable impact on product performance.
Skills & Technologies
About Ruby Labs Ltd.
Ruby Labs Ltd. is a London-based product studio that builds and scales consumer subscription mobile and web applications. The company focuses on health, wellness, and productivity verticals, developing apps such as Hint, Able, and the award-winning fitness platform FitCoach. Using data-driven growth and proprietary technology, Ruby Labs rapidly prototypes, launches, and iterates products to serve millions of global users. The team combines engineering, product design, and performance marketing expertise to create sustainable digital businesses. Founded in 2018, Ruby Labs operates a portfolio of self-funded apps, emphasizing user privacy, scientific validation, and long-term customer value.
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