Head of Growth | eCom Challenger Brand | London / Hybrid

The Client

Our client is a fast-scaling premium challenger brand with strong early product-market fit and clear evidence of repeat, habit-led purchasing. Built around high-quality products, strong attention to detail, and a distinctive brand aesthetic, the business has quickly established itself as a standout name within a growing consumer category focused on modern lifestyle and everyday ritual.

The brand has already demonstrated its ability to acquire and retain customers efficiently through a combination of strong product demand and early-stage marketing performance. However, as the business enters its next phase of growth, the focus is now shifting from momentum-led acquisition to building a more structured, scalable and commercially optimised growth engine across paid, lifecycle and retention as the business scales spend and channel mix becomes more complex.

With increasing demand across DTC and growing interest from select physical stockists and partners, the challenge is no longer just awareness; it is about systematically improving customer acquisition efficiency, increasing lifetime value, and building a repeatable model for sustainable scale while maintaining strong unit economics.

The business is now looking for a Head of Growth to take full ownership of this transition and lead the development of a high-performance, data-led growth function. This is a senior, high-impact role working directly with founders, with end-to-end ownership across acquisition, retention, and lifecycle.

Key Responsibilities

• Own the end-to-end growth engine across acquisition, conversion, retention, and customer LTV
• Build and scale a full-funnel growth system spanning paid media, CRM, CRO, and lifecycle marketing
• Lead performance marketing across Meta, Google, TikTok, and emerging channels with a focus on efficient CAC and scalable spend
• Develop and execute a structured experimentation roadmap across creative, landing pages, funnels, offers, and audience segmentation
• Own lifecycle marketing strategy across email, SMS, and owned channels to drive repeat purchase, engagement, and customer lifetime value
• Work closely with creative and brand teams to build a high-velocity creative testing engine that drives both performance and brand consistency
• Oversee agency and platform partners, ensuring strong accountability against CAC, MER, ROAS, and payback targets
• Build forecasting models, dashboards, and reporting frameworks to inform decision-making and budget allocation
• Identify and unlock new growth opportunities across partnerships, subscriptions, referral programmes, and channel expansion
• Partner directly with founders to translate commercial priorities into a clear, testable, and scalable growth roadmap

What the Client Would Like to See

• Proven experience in Head of Growth, Growth Lead, or Senior Performance Marketing roles within DTC or high-growth consumer brands
• Strong hands-on expertise across paid social, paid search, and lifecycle/CRM marketing
• Demonstrable experience scaling customer acquisition and improving LTV in a fast-paced environment
• Deep understanding of unit economics including CAC, LTV, MER, payback, and contribution margin
• Experience building structured testing frameworks across creative, media buying, and conversion optimisation
• Confidence working closely with creative teams to develop high-performing campaign assets and messaging
• Experience managing external agencies and performance budgets in a data-driven environment

What We Would Like to See

• A commercially minded growth operator who blends analytical thinking with strong creative instinct
• Someone who thrives in fast-moving scale-up environments where priorities evolve quickly
• A hands-on leader who is comfortable deep in the detail as well as setting high-level strategy
• Strong communication skills with the ability to influence founders and senior stakeholders
• A builder mentality, someone who enjoys creating systems, not just optimising channels
• Motivated by the opportunity to shape and scale a modern consumer brand with strong product-market fit

Location: London (hybrid)
Start-date: ASAP

At Harmonic, we are dedicated to fostering an inclusive and equitable workplace. We actively welcome applications from individuals of all backgrounds and assure you that every candidate will be thoughtfully considered for the roles we represent, without regard to race, religion, gender expression, disability, or sexual orientation.