TH

Principal UX Researcher

Location: London · Category: Product & Design · Seniority: Lead · Posted: August 15, 2026 · Verified: Oct 5, 2026

Role Overview & Description

This Principal UX Researcher role leads user research initiatives to inform the design and development of The Trade Desk's programmatic advertising platform. The researcher will design and execute qualitative and quantitative studies, synthesize insights, and drive user-centered decision-making across product teams to improve advertiser and publisher workflows.
Source & Transparency: This position was structured directly from the publicly accessible career portal of The Trade Desk. Details on the employer’s original job posting are authoritative. Polaris7 charges no placement fees and conducts no candidate screening.

About the company

TH

The Trade Desk

thetradedesk.com

Independent DSP for omnichannel programmatic advertising on the open internet.

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