Head of Experimentations

Ruby Labs Ltd.

Job Overview

Location

Remote

Job Type

Full-time

Full Job Description

📋 Description

• Join Ruby Labs, a dynamic and innovative tech company at the forefront of creating and operating cutting-edge consumer products across the health, education, and entertainment sectors. We are a rapidly growing organization driven by passionate individuals committed to shaping the future of consumer-led products.
• As the Head of Experimentations, you will play a pivotal role in architecting and scaling a world-class growth system that fuels acquisition, activation, retention, and monetization across our diverse portfolio of D2C subscription products.
• Your core mission is to transform growth from a product-specific effort into a repeatable, scalable, and sustainable competitive advantage for Ruby Labs.
• You will be instrumental in designing, managing, and scaling high-impact testing and optimization programs that drive significant improvements in key growth metrics.
• This role demands the definition and institutionalization of a comprehensive company-wide experimentation framework, encompassing every stage from hypothesis generation and prioritization to rigorous test design, validation, and effective knowledge management.
• You will establish clear, structured growth roadmaps that are strategically aligned with overarching company objectives, the unique lifecycle stages of each product, and emerging market opportunities.
• Oversee and guide the CRO, growth, lifecycle, and research functions, ensuring a consistent and high velocity of testing while driving measurable, impactful outcomes.
• A critical aspect of your role will be to ensure unwavering statistical rigor, absolute data integrity, and methodological excellence across all experimentation initiatives.
• You will be responsible for maintaining exceptionally high quality standards for all tests, paying meticulous attention to user experience (UX), visual design, messaging clarity, and brand consistency to ensure a cohesive and premium customer journey.
• Leverage your strong problem-solving and critical-thinking skills to meticulously diagnose performance issues, identify root causes, and design innovative and effective growth solutions.
• Translate complex data insights, qualitative user research findings, and detailed behavioral analytics into well-designed, high-quality experimentation initiatives that yield actionable results.
• Continuously monitor and analyze key growth and unit economics metrics, including Customer Acquisition Cost (CAC), Lifetime Value (LTV), Average Revenue Per User (ARPU), retention curves, and conversion rates, to inform strategic decisions.
• Establish and champion best practices for experiment documentation, robust learning management, and effective institutional knowledge sharing to build a repository of insights and accelerate future growth.
• Cultivate and foster a strong culture of structured experimentation, craftsmanship, and high performance across all growth-related teams, empowering them to achieve ambitious goals.
• Present compelling insights, detailed performance reviews, and strategic recommendations to executive leadership, influencing key business decisions and driving strategic alignment.
• You will be building and leading a high-performing growth organization, attracting and nurturing top-tier talent across CRO, growth, lifecycle marketing, and user research.
• Operate within a fast-paced, 100% remote environment characterized by high talent density and a strong culture of ownership, where you will set the standards and build scalable processes.
• Ensure alignment across all growth-related functions, especially during critical scaling phases, to maintain momentum and achieve strategic objectives.
• This is an opportunity to make a significant impact on a portfolio of exciting consumer products and contribute directly to the company's success and growth trajectory.
• You will be a key player in defining the future of growth at Ruby Labs, driving innovation and excellence in how we understand and engage our users.
• Your work will directly influence product development, marketing strategies, and overall business performance, making this a highly visible and impactful role.
• We are looking for a leader who can inspire teams, drive execution, and deliver exceptional results in a challenging and rewarding environment.
• Embrace the opportunity to work with a talented, globally distributed team and contribute to a company that values innovation and ambition.
• Your strategic vision and hands-on approach will be crucial in navigating the complexities of scaling multiple D2C subscription businesses.
• This role requires a blend of strategic foresight, analytical prowess, and a deep understanding of consumer behavior in digital product environments.
• You will be the driving force behind our experimentation engine, ensuring we are constantly learning, iterating, and optimizing for maximum impact.

🎯 Requirements

• 7+ years of experience in growth, CRO, product growth, or performance strategy, with a proven track record of scaling digital subscription or consumer products.
• Advanced expertise in experimentation and analytics platforms, coupled with a strong understanding of user behavior, funnels, and monetization mechanics.
• Demonstrated ability to maintain high testing standards at scale, balancing speed with quality, and experience leading high-performance, cross-functional teams.
• High standards, a strong ownership mindset, and structured thinking are essential for success in this role.

🏖️ Benefits

• Fully Remote Work Environment: Enjoy the flexibility and autonomy to work from anywhere, promoting a healthy work-life balance.
• Unlimited Paid Time Off (PTO): Recharge and prioritize your well-being with the freedom of unlimited PTO, without the need to count days.
• Company-provided MacBook: Enhance your productivity with a top-tier Apple MacBook provided to support your work.
• Flexible Independent Contractor Agreement: Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere, fostering an entrepreneurial spirit.

Skills & Technologies

Ruby

Remote

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Ruby Labs Ltd.

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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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