Growth Marketer - Retention & CRM Leader

Mous; Greater London; Hybrid; GBP 40,000 - 60,000; Full time

Benefits offered by this job

Flexible hybrid working

Regular team socials

Employee discounts

Cycle to Work

Pension scheme

Employee assistance programme

25 days holiday + BH

Job summary

Mous is seeking a growth CRM/retention marketer to own the lifecycle programme across our loyal customer base. You’ll shape strategy, build roadmaps, and run test-and-learn loops to drive repeat purchase and CRM-driven revenue.

You’ll own Klaviyo-based email and SMS flows (welcome, post-purchase, abandonment, win-back), plan campaigns, segment audiences, run A/B tests, and deliver robust retention reporting to the ecommerce team.

Qualifications

• Experience building and managing CRM programs in e-commerce.
• Proven ability to drive repeat purchase and CRM-driven revenue.
• Strong analytical mindset with data-driven decision making.

Responsibilities

• Own and optimise the email & SMS programme in Klaviyo.
• Build lifecycle flows (welcome, post-purchase, abandonment, win-back).
• Plan weekly campaign calendar and report retention KPIs.
• Develop CRM/retention roadmap and customer segmentation.
• Run A/B tests on creative, offers, subject lines and send times.

Skills

Klaviyo

Email marketing

SMS marketing

A/B testing

Segmentation

Lifecycle marketing

CRM strategy

Data analysis

Tools

Klaviyo

Job description

Mous is seeking a growth CRM/retention marketer to own the lifecycle programme across our loyal customer base. You’ll shape strategy, build roadmaps, and run test-and-learn loops to drive repeat purchase and CRM-driven revenue.

You’ll own Klaviyo-based email and SMS flows (welcome, post-purchase, abandonment, win-back), plan campaigns, segment audiences, run A/B tests, and deliver robust retention reporting to the ecommerce team.