At a Glance
- Tasks: Build and execute a growth strategy for a revolutionary oral healthcare brand.
- Company: Join S3 Sensitivity Science, a D2C healthcare disruptor with an innovative team.
- Benefits: Competitive salary, equity options, and the chance to shape your own role.
- Other info: Enjoy total autonomy in a fast-paced, AI-native environment with huge career potential.
- Why this job: Be part of a founding team launching a game-changing product in a massive market.
- Qualifications: 2-3+ years in D2C growth at a UK challenger brand or performance agency.
The predicted salary is between 50000 - 80000 £ per year.
Company Description: S3 Sensitivity Science - D2C healthcare disruptor founded by Skin + Me and Life Supplies alumni.
Location: London, UK
Job Description: 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.
Why this role is remarkable: 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.
What you will do:
- 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.
The ideal candidate:
- 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, optimised 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.
Founding Marketer - Head of Growth (£50k-£80k + Equity) at S3 Sensitivity Science employer: Jack and Jill AI
S3 Sensitivity Science is an exceptional employer, offering a unique opportunity to be part of a pioneering D2C healthcare brand in London. With a dynamic work culture that fosters autonomy and innovation, employees can expect significant growth opportunities while collaborating closely with a proven founding team. The company provides competitive compensation, including equity, and operates in an AI-native environment that encourages rapid execution and creativity.
StudySmarter Expert Advice🤫
We think this is how you could land Founding Marketer - Head of Growth (£50k-£80k + Equity) at S3 Sensitivity Science
✨Tip Number 1
Network like a pro! Reach out to people in the industry, especially those connected to S3 Sensitivity Science. Use LinkedIn to connect and engage with them; you never know who might put in a good word for you!
✨Tip Number 2
Show off your skills! Create a personal project or case study that highlights your D2C growth experience. This will not only demonstrate your expertise but also give you something tangible to discuss during interviews.
✨Tip Number 3
Prepare for the interview by understanding the company’s mission and values. Be ready to discuss how your vision aligns with theirs, especially in disrupting the oral healthcare market. We want to see your passion!
✨Tip Number 4
Apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in being part of our team at S3 Sensitivity Science.
We think you need these skills to ace Founding Marketer - Head of Growth (£50k-£80k + Equity) at S3 Sensitivity Science
Some tips for your application 🫡
Show Your Passion:When writing your application, let your enthusiasm for the role shine through! We want to see that you’re genuinely excited about building a growth engine from scratch and disrupting the oral healthcare market.
Tailor Your Experience:Make sure to highlight your relevant D2C growth experience. We’re looking for someone who’s been in the trenches, so share specific examples of how you’ve driven results in previous roles, especially in fast-paced environments.
Be Data-Driven:Since we’re all about metrics like CAC, ROAS, and LTV, include any quantifiable achievements in your application. Show us how your analytical skills have led to sustainable revenue growth in your past roles.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates during the process!
How to prepare for a job interview at Jack and Jill AI
✨Know Your Numbers
As a Founding Marketer, you'll need to own metrics like CAC, ROAS, and LTV. Brush up on these concepts before your interview. Be ready to discuss how you've used data to drive growth in previous roles and how you plan to apply that knowledge at S3 Sensitivity Science.
✨Showcase Your Creativity
This role is all about building a growth engine from scratch. Prepare examples of innovative marketing strategies you've implemented in the past. Think about campaigns that disrupted the market or content that resonated with a younger audience—this will show your potential to scale the brand's digital presence.
✨Understand the Brand and Market
Do your homework on S3 Sensitivity Science and its competitors, especially Sensodyne. Familiarise yourself with the oral healthcare market and be ready to share insights on how you would position the brand. This shows you're not just interested in the role but also passionate about the product and its impact.
✨Emphasise Your Founder-Minded Approach
The ideal candidate is a founder-minded operator. Highlight experiences where you've taken initiative, worked autonomously, or made decisions that had a significant impact. This will demonstrate your fit for a fast-paced, AI-native environment where speed and execution are key.
