Remote Email Growth Architect - Lifecycle & Experiments

Ruby Labs Ltd; New York (NY); Remote; USD 110,000 - 160,000; Full time

Benefits offered by this job

Remote work environment

Unlimited PTO

Paid national holidays

MacBook provided

Flexible independent contractor option

Job summary

Ruby Labs Ltd is seeking an Email & Lifecycle Marketing Growth Manager to lead lifecycle marketing and email-driven growth. You will build audience segments, craft personalized onboarding and retention journeys, and run experiments with the Email, Growth, Product, and Analytics teams to drive conversions and revenue.

You will translate customer insights into messaging and flows, manage testing programs, and monitor deliverability and engagement to sustain scalable growth.

Qualifications

• 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.

Skills

Lifecycle marketing

A/B testing

Segmentation

Onboarding journeys

Copywriting

Analytics

Cross-functional collaboration

Email deliverability

English fluency

Tools

Customer.io

Mixpanel

Job description

Ruby Labs Ltd is seeking an Email & Lifecycle Marketing Growth Manager to lead lifecycle marketing and email-driven growth. You will build audience segments, craft personalized onboarding and retention journeys, and run experiments with the Email, Growth, Product, and Analytics teams to drive conversions and revenue.

You will translate customer insights into messaging and flows, manage testing programs, and monitor deliverability and engagement to sustain scalable growth.