Growth

Location:** London, UK – In-person Employment Type: Full-time In-office expectation: Work from our Central London office 5 days per week Eligibility: Right to work in the UK preferred. We can sponsor visas for exceptional candidates, and we support relocation to London

About Mozart AI

Mozart AI is music's first creation network, where the world goes from listening to music, to making it together, to being known for it. 1.5 billion people can play an instrument. We're building the products that turn them into artists, and turn their fans into the next ones. Our customers love us, and include everyone from grandmas using Vibe sessions to Grammy winners using the Studio. Music is having its first explosive moment of creation-driven consumption, and we aspire to shape that world to preserve the social and fun elements of music creation.

We've raised over $7M from Balderton Capital (backers of Revolut) and several Silicon Valley legends like Kevin Hartz and Emery Wells, who have backed companies like Uber, Spotify, Reddit, and other massive consumer outcomes.

We're a small, talent-dense team building the future of music from our London office. We operate with high ownership, high velocity, and low-ego collaboration — specialist generalists who work hard, learn fast, and ship relentlessly. We care deeply, move fast, and we're here to build something that outlives us.

About the Role

Paid ads are how people convert on Mozart, and the creative decides how much each customer costs. This role decides what that creative is. You research what our users want, turn it into ad concepts, write the briefs, and run the creators and agencies who produce the ads across Meta and TikTok. If you think in angles, hooks and formats, read hook rate and hold rate as easily as you spot a new trend, and want your ideas tested in front of real audiences within days, this role is for you.

What You'll Do

• Research our users, our product and what's trending on Instagram and TikTok to find new angles, hooks and use cases worth testing.
• Turn that research into new ad concepts every week.
• Write briefs that creators, agencies and our in-house team can shoot without coming back with questions.
• Build the Mozart creative engine, the system that tells us which ads to make next, not just which ones worked, spots trends before they go viral, and lets us test a wide variety of formats every week.
• Build a creator network that sources creators, vets and briefs them, and tracks cost and CPA per creator, so creator-made ads ship at volume every month without manual work.
• Own the relationship with our creative agencies, and judge their work on whether it converts.
• Shoot, edit and multiply ads yourself when a winning angle needs to be live the same day.
• Read hook rate, hold rate and CPA every week and use them to decide the next concepts. Blended CPA should fall as spend grows.

What You'll Need

Must-Haves

• You have run paid social creative on Meta and TikTok that scaled, more than once, and you can show the numbers.
• You understand direct-response creative: audiences, angles, hooks, and why an ad wins or loses.
• You write briefs (angle, hook, script beats, references, cohort, metric to move) that people can shoot without a follow-up question.
• You make ads yourself: shot on a phone, cut in CapCut or After Effects, multiplied with AI tools. You are never blocked waiting on someone else.
• You use AI agents to automate the parts of the job that repeat, and you build the process that produces the ads, not only the ads.
• You live on Instagram and TikTok, spot trends early, and check the Meta Ad Library for what top consumer apps are running.
• You judge creative on CPA, hook rate and hold rate, find the element of a losing ad that failed, and test that one thing.
• You take ownership, ship fast, notice what is missing before anyone asks, and do whatever needs doing.

Nice-to-Haves

• Experience at a consumer subscription app, a growth agency running paid social, or a DTC/ecommerce brand.
• Comfort folding AI tools into research and ideation to move faster.
• A love of music and an eye for culture.

Perks & Benefits

• Significant Equity
• Medical & Health Insurance
• Gym Membership
• Whoop to track your health
• MacBook of your choice
• Office in Central London
• Chef-prepped meals
• Pension Contribution
• Work on a product you'll love using