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S3 Sensitivity Science

S3 Sensitivity Science

Job listing

London, United Kingdom£50k-£80k + Equity

Founding Marketer - Head of Growth at dental-tech startup from Skin + Me co-founder

Join a proprietary dental-tech startup as the founding marketer and build the growth engine for a brand set to disrupt the global sensitivity market. Co-founded by the entrepreneur behind Skin + Me (£70M+ ARR), this role offers a rare chance to work directly with a proven team at the earliest stage. If you are an AI-native, D2C-obsessed hustler with experience at top UK challenger brands, this is your opportunity to trade corporate structure for founding equity and massive impact. Forget managing budgets—we want a wannabe founder ready to build a market leader from scratch.

Overview

Role overview

You will join as the first marketing hire to disrupt the global dental sensitivity market. Working directly with founders who have previously scaled D2C brands to £70M+ ARR, you will build the growth engine from scratch. You will own the entire customer journey, from paid acquisition to retention strategy.

Company

S3 Sensitivity Science

S3 Sensitivity Science

Proprietary dental-tech startup co-founded by Skin + Me co-founder (£70M+ ARR)

Responsibilities

What you will do

  • Design and execute the full-funnel growth strategy across Meta, TikTok, and paid social ahead of the summer 2026 launch.
  • Build out the D2C tech stack including Shopify integration, email/SMS flows, and conversion rate optimization (CRO) frameworks.
  • Manage the entire unit economics model, taking full ownership of CAC, ROAS, and LTV to ensure sustainable, high-growth scaling.

Candidate profile

Who this is a fit for

  • 2-5 years of hands-on D2C growth experience, ideally from a high-growth UK challenger brand like Huel, Surreal, or Grind.
  • AI-native operator who defaults to using automation and AI tools to move faster and execute high-quality work independently.
  • Entrepreneurial "founder wiring" with the ability to build and iterate rapidly without needing a pre-defined brief or large team.

What makes it remarkable

Why this role is remarkable

  • Rare opportunity to join a category-disrupting consumer health brand at the founding stage with a proprietary, clinically superior formulation.
  • Build alongside a proven founding team with deep experience scaling D2C giants like Skin + Me and Life Supplies.
  • Significant founding-level equity in a business targeting a massive global market currently dominated by legacy incumbents like Sensodyne.

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