Head of Creative - Paid Social London

Slingshot AI is the team behind Ash, the first AI designed for mental health. Our mission is to make support more accessible and help people change their lives in the ways they want. We’re building a world-class team by empowering individuals with the autonomy, flexibility, and support they need to do their best work. We dream big, iterate fast, and care deeply. If that sounds like you, we’d love to hear from you.

Our team spans machine learning, product, engineering, conversational design, clinical, growth, and operations, with offices in both New York City and London. We're a well-funded Series A company, having raised $93M from top-tier tech investors.

The role involves identifying, creating, testing, and scaling our D2C creative motion. Millions of people already use general purpose AI as a therapist, and millions more are on a waitlist or priced out of care. Demand is not our problem; getting Ash in front of the people who need it is. Creative is the biggest lever we have on that, and this role owns it.

This is a hands-on role by design. You own the loop, coming up with creative copy, producing visuals and tag-lines, and iterating quickly to dial in on what works. You create and test fast, trust your instincts, and want to develop the playbook that puts proper mental healthcare at the world's fingertips.

Key responsibilities:

• Own the weekly experiment loop: hypothesis, A/B test, read the result, identify winners, iterate.
• Build the system that makes it repeatable, including testing cadence, angle library, naming and tagging, and a bank of real user language pulled from communities, reviews, and our own conversations.
• Create winning concepts and raise the hit rate of winning concepts so paid has more to scale behind.
• Write hooks, headlines, overlays, and scripts, in the voice of the person scrolling.
• Brief at volume: one brief that many creators each interpret their own way, built for what each network rewards.
• Coach creators with sharp feedback, one to many.
• Work with media buying on a weekly cadence, reading media buy KPIs and checking how tests performed.
• Develop the product and audience understanding that decides what works.
• Set the visual and verbal point of view for Ash in market.

About you:

• You produce assets yourself on the AI stack, Figma, CapCut and the rest.
• You come from the paid side moving into creative, or creative moving toward paid.
• Experienced in writing performance copy; have taste and can quickly iterate.
• Consumer only, ideally subscription.
• You can set up a clean test, read the result honestly, and defend your taste with an argument.
• You want to work on mental health for a reason you can say out loud.

Nice to have:

• You can challenge our media buyer on their own ground.
• You have built or reshaped web funnels and landing pages to match the creative that drove the click.
• You have built or run a creator or UGC pipeline, including sourcing, briefing, and quality control.

What we offer:

• A chance to join a passionate tight-knit team working on something to change the world.
• Competitive compensation (top of personal market).
• Travel between our NYC / London offices.
• Usual startup perks like free lunch and coffee in office + generous learning budget.
• We cover your personal therapy.