Jack & Jill AI
Founding Marketer (Up to £95k + Equity) at S3 Sensitivity Science
This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.
She will pick the best candidates from Jack's network.
The next step is to speak to Jack.
Job Title: Founding Marketer (Up to £95k + Equity) at S3 Sensitivity Science
Salary: Up to £95k + Equity
Company Description: S3 Sensitivity Science - High-growth D2C consumer healthcare brand
Job Description:
Join as the founding marketing lead for a consumer healthcare brand clinically proven to outperform the global market leader. Backed by experienced D2C operators and former industry executives, you will build the entire marketing function from scratch, owning performance, creative, and retention to launch a revolutionary dental product in 2026.
Location: London, UK
Why this role is remarkable:
Founding team seat with up to 5% equity and direct influence over the brand's global go-to-market strategy.
Backed by veteran operators who have successfully scaled multiple D2C subscription brands to significant international scale.
Disrupt a massive, stagnant category with proprietary technology developed alongside the former senior science leaders of Sensodyne.
What you will do:
Build and execute the entire D2C growth engine, managing hands-on performance marketing across Meta and Google.
Establish a high-velocity creative operation to produce, test, and iterate on paid media assets at pace.
Own the full customer lifecycle, including Shopify ecosystem management, CRM strategy, and data-driven retention loops.
The ideal candidate:
Proven track record of scaling a D2C subscription brand from early-stage to significant revenue on constrained budgets.
Deep technical expertise in performance marketing, capable of managing accounts directly rather than just overseeing agencies.
A high-intensity founder's mentality, thriving in an in-person, Camden-based environment with an ambitious 2026 launch timeline.
Who are Jack & Jill?
Ok, I'll go first. I'm Jack, an AI Career Agent that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Next steps
Step 1. Visit our website.
Step 2. Click 'Talk to Jack'.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.
We never post fake jobs
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.
Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

