Senior CRM Manager

Company: Harnham
Apply for the Senior CRM Manager
Location: London
Job Description:

Overview

In this role you lead the CRM function for a fast-growing D2C e-commerce retention agency, directing a small team across 20+ client brands. You design and optimize lifecycle campaigns, monitor CRM KPIs, and drive data-driven strategies with cross-functional partners. You’ll elevate clients’ retention and lifetime value while shaping the agency’s CRM capabilities. This position offers a collaborative, growth-focused culture with clear career progression and share options.

Pay / Benefits

  • EMI share options
  • free laptop
  • clear career progression (Head of CRM roadmap)

Responsibilities

  • Lead and develop a team of 3 CRM specialists
  • Own CRM strategy and execution across 20+ D2C e-commerce clients
  • Design, test and optimise lifecycle campaigns (winback, reactivation, retention)
  • Oversee all campaign performance and CRM KPIs
  • Collaborate with designers, copywriters, and account managers to deliver client outcomes
  • Act as the go-to CRM expert, elevating data-driven strategy across the agency

Key requirements

  • Strong CRM and retention expertise in e-commerce
  • Deep knowledge of Klaviyo and Shopify, or similar tools
  • Proven leadership experience managing at least one person
  • Data-driven mindset with metrics like CLTV, ROI, and conversion rates
  • Strategic yet hands-on—balancing leadership, client strategy, and optimisation
  • Agency background or experience across multiple brands
  • leadership
  • collaboration
  • communication
  • Klaviyo
  • Shopify
  • CRM strategy and lifecycle campaigns

…

Posted: October 1st, 2026