Product Designer

Koah is building AI powered ad formats that belong everywhere they appear. Whether a Koah ad shows up in a chat as part of the conversation, on a publisher’s site as editorial content, or in a sidebar, feed, or email with the right layout and tone, the goal is consistent: adapt the format to the surface in real time with the right content.

Koah is seeking a product designer to own the advertiser and publisher experiences end to end. This role covers the creative tools, dashboards, SDK integration flows, and the ad format system that adapts across rendering contexts. You’ll work across multi sided marketplace UX and AI augmented workflows for campaign agents and publishers, with the option to design both the “tooling layer” and the experience layer that drives outcomes for both sides.

What you’ll do

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

What you bring

• Systems thinking with the ability to balance immediate user needs and long term product vision
• Experience designing for multi sided products such as marketplaces, developer tools, ad platforms, or similar
• Enthusiasm for designing AI augmented workflows, not only traditional dashboards
• A craft mindset where design quality compounds into trust
• Comfort working at the design engineering boundary, including schemas, structured data, and component APIs
• Ability to move fast without a full spec and drive clarity through design

About the role

On the advertiser side, Koah is moving toward a setup where campaign agents handle the heavy lifting such as generating creative, selecting formats, and optimizing toward goals, while advertisers steer using goals and guardrails. You will design the tools that make that control tangible. On the publisher side, you will design the SDK integration experience, including how publishers describe their surfaces, configure preferences, and understand the value from Koah. You’ll also shape the ad format system itself, focusing on how formats compose, adapt, and render across surfaces.

Koah in brief

Koah is backed by Theory Ventures, lives in AI apps serving millions of users, and recently closed its Series A. The company uses AI to compose the right format for the right surface with the right content in real time.

Location: San Francisco, CA (onsite)
Salary: USD 150,000 - 200,000 per year