About the company

We're a fast-growing mobile gaming company building and publishing games that reach millions of players worldwide. We run a rigorous, data-driven testing culture around who we target and what we say - tracking is fully built out, and every decision is backed by numbers. We're building a small, high-ownership team in London where paid acquisition, creative, and product work side by side in one room.

What the job is

Runs our ICP-and-messaging testing engine. Every week they pick which audiences we test (5, 10, 20 depending on bandwidth), go deep enough on each one to understand them properly, decide the messaging and ad type for each, get campaigns live with the media buyer and the creative lead, then read the results and decide what we test next.

The job is research, judgment and analysis. Our tracking is built and the data is flowing, so day one is spent reading it. They're judged on validated learnings per dollar.

Must-haves

3-6 years consumer mobile UA, having personally owned $50K+/month in-house. They controlled the budget directly.
Gaming background. A real player or has worked in games. They need to understand our users from the inside.
Deep in one of Meta/TikTok/Google, fluent in all three. Has stood up a channel from scratch at least once.
Creative and messaging testing methodology. Post-ATT, the creative is the targeting. Runs a weekly test cadence with kill criteria set before a test starts.
Self-serve on data. Pulls the cohorts themselves (retention, invite rate, by audience and by country) and comes back saying which audience to back and which to kill.
Audience obsession. Sits in the subreddits and Discords, reads reviews, talks to users. Can describe a persona better than that persona would describe themselves.
Repeatable process. Hypothesis → test → learning → next test, written down and reusable.
Honest with data. Calls a failed test failed and gets suspicious when numbers look too good.
Autonomous. Sets their own weekly plan and ships it without being chased. Startup-level ownership.

Nice-to-have

Hypergrowth startup experience
Long tenure (5+ years average per company)
ASO
SDK networks (AppLovin/Mintegral)

Logistics

Location: London, UK. Remote until October 2026, then in person from October - relocation to London by October is a condition of the offer.
Full-time.