Job Overview
Location
European Union
Job Type
Full-time
Category
Marketing
Date Posted
April 3, 2026
Full Job Description
đź“‹ Description
- • As an Email Marketing Growth Manager at Ruby Labs Ltd., you will drive measurable business impact by optimizing email as a core growth channel through structured experimentation and data-driven decision-making, directly influencing conversion, activation, and retention across the customer lifecycle.
- • You will own the end-to-end experimentation roadmap for email marketing, designing and executing A/B tests across subject lines, preview text, email body copy, CTAs, content structure, offer presentation, and lifecycle messaging to maximize conversion volume and improve post-purchase engagement.
- • Your day-to-day responsibilities include developing and prioritizing experiments focused on pre-purchase conversion and post-purchase activation/retention, analyzing email performance and user behavior to identify growth opportunities, writing clear hypotheses and copy variations, partnering with the Email Team on implementation, measuring results, reporting daily experiment outcomes in the growth Slack channel, controlling monetary impact on the top line, maintaining a documented backlog of experiments, and conducting market and competitor research to generate new hypotheses.
- • You will collaborate closely with the Email Team, Growth Team, product, and analytics stakeholders to ensure all experiments are aligned with measurable business outcomes and contribute to the company’s top-line growth.
- • Ruby Labs is a fast-growing tech company creating innovative consumer products in health, education, and entertainment, operating with a remote-first culture within CET±4 hours, where ambition, impact-driven thinking, and ownership are highly valued and rewarded.
- • In this role, you will deepen your expertise in growth experimentation, lifecycle optimization, and email marketing analytics while gaining cross-functional experience working with product, data, and engineering teams, positioning you to lead high-impact growth initiatives and advance your career in performance marketing and growth strategy.
🎯 Requirements
- • At least 3 years of experience in email marketing
- • At least 2 years of experience in growth and A/B test execution
- • Strong hands-on experience with experimentation in email or lifecycle marketing
- • Ability to generate testing ideas that improve conversion, activation, and retention
- • Strong copy instincts for writing and refining subject lines, CTAs, email messaging, and lifecycle content
- • Strong analytical skills and comfort working with performance data
- • Experience with tools such as Mixpanel, Customer.io, or similar platforms
- • Ability to work cross-functionally with email, growth, product, and analytics teams
- • Strong organization and clear communication
- • Fluent English
🏖️ Benefits
- • 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, including tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.
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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