Retention Manager Marketing · London Office ·

About Mous

We are Mous. (Pronounced mouse, not moose.) People deserve tech and lifestyle products that are fit for purpose, perform as promised, and empower them to be their best. That’s why we’re building the go-to brand for products that genuinely deliver. For over 10 years, we’ve pushed product performance to its limits, designing from first principles, validating through real‑world testing, and investing millions in R&D. In parallel, we’ve built world‑class in‑house marketing capabilities, creating highly engaging, performance‑led content that proves what our products can do and resonates with a passionate, fast‑growing community around the brand.

About the Role

We’re looking for a Retention Manager to own and accelerate one of the biggest growth opportunities at Mous. This is a high‑impact role where you’ll take ownership of retention end‑to‑end by shaping the strategy, building the roadmap, and maximising the value of our growing customer base. You’ll be joining an established, fast‑growing DTC brand with a loyal global community, a strong creative identity, and huge potential to deepen customer relationships. Retention at Mous is a key growth lever. We already have a large and engaged customer base, but there is a significant opportunity to increase repeat purchases, strengthen loyalty, and unlock more lifetime value. From CRM and loyalty through to the full customer journey, you’ll own initiatives that directly influence commercial results.

About You

You’re a commercially minded, data‑driven marketer who is excited by the opportunity to turn insights into growth. Being commercial and analytical is essential, but just as important is your ability to generate ideas for testing, whether that’s copy, imagery, or cohorts. With an entrepreneurial and impact‑driven mindset, you would actively shape performance through experimentation and iteration, analysing the data to inform the ongoing strategy and plans. You’ll ideally have experience within DTC or consumer‑based brands and understand how retention fits into the wider commercial engine. You know how to define what good looks like through building clear reporting structures, setting meaningful success, and ensuring the team has visibility on performance. You bring a structured, hypothesis‑led approach to improvement. You’re confident building testing frameworks that turn ideas into experiments, and experiments into scalable learnings that improve customer engagement and long‑term value.

Key Responsibilities

• Own and optimise the email & SMS programme in Klaviyo – building and reporting on lifecycle flows (welcome, post‑purchase, abandonment, win‑back) and the weekly campaign calendar
• Develop the CRM/retention roadmap and customer segmentation across the full post‑purchase journey
• Plan and run A/B tests on creative, offers, subject lines and send times, and report against retention KPIs
• Own retention reporting – repeat purchase rate, customer LTV, churn and email/SMS revenue – and surface insights to the wider Ecommerce team

How will success be measured?

• Retention established as a fully owned function, with a clear CRM strategy, lifecycle framework, and reporting in place
• Growth in repeat purchase rate and CRM‑attributed revenue against agreed targets
• Strong segmentation and testing framework driving continuous, measurable improvements in customer performance
• Reduced churn and increased reactivation of lapsed customers through effective win‑back and lifecycle programmes
• Clear, consistent visibility of performance through robust retention reporting and defined success metrics

Skills requirements

• Hands‑on Klaviyo expertise (or comparable ESP) – building flows, segments and campaigns independently
• 2–4 years in CRM / retention / lifecycle marketing, ideally at a DTC ecommerce or consumer brand
• Confident with retention metrics – LTV, repeat purchase rate, churn, cohort analysis
• Demonstrable record of growing repeat purchase rate and CRM‑driven revenue

• Commercial and analytical mindset
• Self‑starter able to own a channel end‑to‑end in a fast‑paced, lean team
• Strong copy and creative judgement; able to take ideas from concept to live test independently across email and SMS

Nice to have:

• Loyalty or subscription experience
• Clear test‑and‑learn examples with evidence of the uplift achieved

Our Offer

We operate a hybrid working model, typically spending at least three days a week in our Hoxton office to maintain our collaborative and high‑energy culture. Benefits include:

• Significant opportunity for growth, ownership, and career progression
• Competitive salary reflective of experience and impact
• 30% Friends & Family discount on all Mous products
• 25 days’ holiday + 8 bank holidays
• 1 month paid leave after 5 years’ service
• Cycle to Work Scheme
• Employee Assistance Programme (EAP): access to confidential wellbeing support, advice, and resources whenever you need it
• Charlie HR perks and discounts
• Regular socials, events, and on‑site activities (including an on‑site gym)

Our Values

• Get Results – We take accountability, prioritise impact, and push standards higher.
• Work Together – We collaborate openly, challenge constructively, and learn from each other.
• Enjoy the Ride – We stay agile, embrace change, and enjoy building something special together.

About Our Commitment

Mous is an equal opportunity employer. We celebrate individuality and are committed to building a diverse team with a wide range of experiences, perspectives, and backgrounds.