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Ruby Labs

Develops consumer health, edtech, entertainment apps

Email & Lifecycle Marketing Growth Manager

Growth MarketingUpdated on Nov 12
Full-timeNo salary listed

About the Job

Requirements

  • At least 3 years of experience in email or lifecycle marketing.
  • At least 2 years of experience in growth experimentation and A/B testing.
  • Strong hands-on experience building audience segments and automated lifecycle journeys.
  • Ability to translate customer research and behavioral data into relevant messaging and effective flows.
  • Experience developing and prioritizing experiments that improve conversion, activation, and retention.
  • Strong copywriting instincts across subject lines, calls to action, and lifecycle content.
  • Strong analytical skills and the ability to connect email performance to business outcomes.
  • Experience with Customer.io, Mixpanel, or similar marketing automation and analytics platforms.
  • Understanding of event-based automation, personalization, and email deliverability.
  • Ability to work cross-functionally with Email, Growth, Product, and Analytics teams.
  • Strong organization, prioritization, and clear communication.
  • Fluent English.

Responsibilities

  • Own the email and lifecycle marketing growth roadmap.
  • Research customer needs, motivations, and behavior to identify meaningful audience segments.
  • Develop and refine segmentation based on use cases, product behavior, lifecycle stage, and purchase intent.
  • Build personalized onboarding, activation, conversion, retention, and re-engagement journeys for different audiences.
  • Adapt messaging, content, offers, and calls to action to each segment’s needs.
  • Define journey triggers, timing, branching logic, and exit conditions.
  • Work with Product and Analytics to identify the data and events needed for segmentation and automation.
  • Prioritize lifecycle opportunities and experiments based on expected business impact.
  • Write clear hypotheses and run A/B tests across messaging, content, offers, timing, and journey structure.
  • Analyze email performance and user behavior to identify growth opportunities and friction points.
  • Partner with the Email Team to implement flows, experiments, and campaign improvements.
  • Measure experiment impact on conversion, activation, revenue, and retention.
  • Maintain a clear experiment backlog, document learnings, and define next steps.
  • Share concise daily experiment updates in the Growth Slack channel.
  • Conduct ongoing customer, market, and competitor research to generate new hypotheses.
  • Monitor deliverability and audience engagement to support sustainable email growth.

About the Company

Ruby Labs

Develops consumer health, edtech, entertainment apps

Ruby Labs creates and runs a collection of consumer-facing digital products in health, education, and entertainment. Its apps are built for mobile devices and marketed directly to users, generating revenue from in-app purchases and subscriptions within its own product ecosystem. The company distinguishes itself by managing its own multi-vertical portfolio and operating with a remote-first culture, focusing on broad consumer appeal across wellness, learning, and entertainment needs. The company’s goal is to provide accessible digital platforms that help people improve well-being, acquire new skills, and enjoy engaging entertainment through its direct-to-consumer apps.

Company size
51-200
Company stage
Not listed
Total funding
Not listed
Headquarters
London, United Kingdom
Founded
2018

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