Product Designer

Company: Koah
Apply on Partner’s Website
Location: London
Job Description:

About The Role

We’re looking for a product designer to own the advertiser and publisher experiences – the creative tools, dashboards, and integration flows that make Koah work for both sides of the marketplace.

On the advertiser side, we’re building toward a world where campaign agents do the heavy lifting – generating creative, selecting formats, optimising toward goals – and advertisers steer with goals and guardrails. You’ll design the tools that give advertisers that power.

On the publisher side, you’ll design the SDK integration experience – how publishers describe their surfaces, configure preferences, and see value from Koah.

You’ll also shape the ad format system itself – how formats compose, adapt, and render across surfaces.

What you’ll do

  • Design the advertiser experience end–to–end – campaign creation, AI–assisted creative tools, reporting
  • Shape how advertisers and campaign agents collaborate to produce and deploy ad creative at scale
  • Design the publisher integration experience – SDK onboarding, surface configuration, performance dashboards
  • Contribute to the ad format library – how formats adapt across different rendering contexts
  • Connect the dots across advertiser tools, publisher surfaces, and end–user ad experiences

You might be a fit if

  • You think in systems and can balance immediate user needs with long–term product vision
  • You’ve designed for multi–sided products – marketplaces, developer tools, ad platforms, or similar
  • You’re excited about designing AI–augmented workflows, not just traditional dashboards
  • You care about craft because it compounds into trust
  • You’re comfortable at the design–engineering boundary – schemas, structured data, component APIs
  • You’re comfortable moving fast without a full spec and drive clarity through design

Compensation Range

$150K – $200K

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Posted: September 22nd, 2026