Email Marketing Growth Manager

Ruby Labs

Email Marketing Growth Manager at Ruby Labs focusing on maximizing email marketing as a growth channel. Responsible for A/B testing and improving user activation, retention, and engagement through effective strategies.

Posted 5/11/2026full-timeRemote • 🇪🇺 Anywhere in EuropeMid-LevelSeniorWebsite

About the role

Key responsibilities & impact

Own the experimentation roadmap for email marketing growth
Run A/B tests across:
- subject lines
- preview text
- email body copy
- calls to action
- content structure
- offer presentation
- lifecycle messaging
Develop and prioritize experiments across two key areas:
- Pre-purchase experiments focused on maximizing conversion volume from email
- Post-purchase experiments focused on improving user activation, retention, and re-engagement
Analyze email performance and user behavior to identify growth opportunities and friction points
Write clear testing hypotheses and propose strong copy variations for experiments
Partner with the Email Team on the implementation of tests and campaign changes
Measure experiment results, identify winners and losers, and define next steps
Do the daily reporting of the Email experiment in the growth Slack channel
Control the monetary impact of every experiment on the company top line
Maintain a clear backlog of email growth experiments and document learnings
Perform ongoing market and competitor research to generate new hypotheses and experiment ideas
Work with data and product stakeholders to ensure experiments are tied to measurable business outcomes

Requirements

What you’ll need

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
- 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

Comp & perks

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. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

A/B testingemail marketingconversion optimizationuser activationuser retentionlifecycle messagingcopywritingdata analysisperformance measurementmarket research

Soft Skills

strong communicationorganizationcross-functional collaborationanalytical skillscreativityproblem-solvinghypothesis generationattention to detailadaptabilitystrategic thinking