Founding Marketer - Head of Growth at S3 Sensitivity Science

As the first marketing hire, you will build the entire growth engine from scratch for a proprietary oral healthcare brand. Working directly with founders who scaled previous ventures to £70M+ ARR, you’ll own the full funnel—from paid social and CRO to retention—disrupting a stagnant market dominated by Sensodyne.

• Architect and execute the full-stack growth strategy across Meta/paid social, email/SMS flows, and Shopify CRO to drive the Summer 2026 launch.
• Own the commercial North Star metrics including CAC, ROAS, and LTV, translating marketing activities into sustainable revenue and unit economic success.
• Scale the brand’s digital presence by identifying and exploiting high-growth channels and creating content that resonates with a younger, digitally-native audience.

• 2–3+ years of hands-on D2C growth experience at a UK challenger brand (e.g., Huel, Surreal, or Grind) or a fast-paced performance agency.
• Founder-minded operator who is AI-native and moves fast without needing a brief, optimized for equity upside and long-term value creation.
• Deeply analytical with a mastery of paid social mechanics and a relentless drive to absorb D2C marketing crafts and emerging industry trends.

• Partner with a proven founding team including the co-founder of Skin + Me to launch a clinically superior product into a massive global category.
• Gain true founding-level equity and total autonomy to build the marketing playbook and function without the constraints of legacy corporate structures.
• Work in an AI-native environment where speed and high-agency execution are the default, supported by proprietary formulation technology that outperforms the current market leader.