Co-Founder & Chief Marketing Officer (gn) @ Sleep Health Consumer Brand, London

Abyssal S.A; City of London; On-site; GBP 150,000 - 200,000; Full time

Job summary

A direct-to-consumer health startup in London seeks a dynamic marketing co-founder to establish and execute a growth strategy focused on sleep health. You will lead innovative marketing efforts, manage a high-performance team, and drive customer acquisition and retention. Applicants should have extensive D2C experience, a passion for the mission, and a strong understanding of e-commerce and performance marketing.

Qualifications

• Proven track record in growth and brand building in high-growth D2C startups.
• Ability to create marketing strategy and execute plans effectively.
• Strong passion for sleep health and commitment to mission.

Responsibilities

• Define the marketing strategy for the startup.
• Manage marketing budgets and performance data.
• Build and lead a high-performance team for growth.

Skills

E-commerce expertise

Performance marketing knowledge

Creative testing

Conversion rate optimization

Customer retention strategies

Team leadership

Fluent English proficiency

Job description

JOIN A VENTURE FROM THE GROUND UP

We’re building a consumer health company focused on one of the most powerful drivers of wellbeing: sleep.

Sleep is the most powerful natural thing we can do for our health - energy, focus, metabolism, and recovery. Yet it’s still treated like an afterthought. Demand for sleep-focused products is growing, but what’s out there today is fragmented, overpriced, and short-term.

We’re fixing that.

Dendro Health is building a direct-to-consumer sleep health platform focused on long-term results - powered by clinical research, behavioural science, and technology. The first founder (ex-SellerX, startup operator, and growth leader) is now looking for a true co-founder - someone who wants to build this from the ground up and shape its future.

HOW WE THINK

Frameworks are easy. Execution is what makes the difference. We learn by doing, move fast, test relentlessly, and learn faster than anyone else.

You’ll be building a brand that combines clinical insight, consumer psychology, and creative growth. Every experiment you run, every message you craft, and every customer you acquire will shape the DNA of this company.

WHAT YOU’LL DO

This is a true founder seat - not a functional role. You’ll have full ownership - define the strategy, execute the plan, and build the machine that scales Dendro Health into a household name. You will:

• Own all marketing levers across organic, paid ads, and partnerships.
• Refine the go-to-market strategy, positioning, and channel roadmap from scratch.
• Build and scale paid social, influencer, and CRM programs with clear ROI tracking.
• Lead A/B testing and conversion optimization across offers, creatives, and pricing.
• Manage marketing budgets and performance data with financial discipline.
• Develop and implement acquisition and retention strategies that drive profitable growth.
• Build and lead a lean, high-performance team focused on speed, data, and creativity.
• Collaborate with other departments to strengthen customer experience and brand consistency.
• Own every growth lever across organic, paid, and partnerships

WHO YOU ARE

You’ve been part of the D2C trenches. You understand e-commerce, performance marketing, creative testing, CRO, and lifecycle inside out. You think creatively but measure everything. You move fast. You make decisions.

On top of all this, you possess the following characteristics:

• Strong passion for sleep health and a deep commitment to our mission
• Pre-experience in high-growth D2C startups with a proven track record in growth and brand building.
• Strong creative instinct: can brief, write and test ad concepts that convert.
• Comfortable operating in ambiguity and speed - creating structure where there is none.
• A founder mindset: ownership, urgency, and a lean mindset; excited to get more done with less with AI.
• Native or fluent English proficiency (additional languages are a bonus but not necessary).
• Already based in London and ready to commit to an early-stage startup and all that it entails.

ABOUT FOODLABS

We’re backed by FoodLabs, one of Europe’s leading early-stage investors focused on improving human and planetary health. They back ventures that combine science, technology, and purpose; exactly what we’re doing at this venture.