Harriet Bowyer

About Harriet Bowyer

I’m a senior inventory and supply leader with 10+ years of experience across programmatic, CTV, addressable TV, and premium video, focused on building scalable, high-quality supply strategies that work for buyers, publishers, and platforms alike.Across my career, I’ve- Owned executive publisher and SSP partnerships across North America and Europe- Built and optimized marketplaces using different commercial models and deal frameworks- Led SSP consolidation and supply path optimization initiatives- Acted as senior escalation and decision point for complex supply, product, and operational challenges- Built and developed high-performing teams, setting clear OKRs and accountabilityI’m especially passionate about improving marketplace transparency, operational excellence, and sustainable growth in the evolving CTV and premium video ecosystem.

Experience

1. Director of Programmatic Investment

   WPP

   Mar 2025 — Present · NY, US

   Manage US programmatic inventory strategy across curated, premium supply spanning ATV, CTV, OLV, display, and mobile.Oversee disclosed WPP inventory portfolios across multiple SSPs, establishing performance governance and prioritization frameworksServe as senior escalation point and contact for publishers, SSPs, DSPs, and internal stakeholdersPartner with DSPs to influence supply-side product development and inventory management functionalityCollaborate with Amerilink, Choreograph, and InfoSum on growth-aligned initiativesSupport upfront negotiations and rate card strategy across premium environments

Education

• University of Exeter

  Management and Marketing with proficiency in French, Business

  2009 — 2012

• Lavington School

  GCSE's, Maths, English, Science, French, Geography, Religious Education, Art, Physical Education

  2001 — 2006

• South Wilts Grammar School

  A levels, Art, Business studies & Physical Education

  2006 — 2008

Skills

• Wordpress
• Public Relations
• Business Strategy
• Online Advertising
• Teaching
• Time Management
• Customer Service
• Social Networking
• Social Media Marketing
• Advertising
• Event Planning
• Teamwork
• Team Leadership
• Public Speaking
• Research
• Marketing
• Mailchimp
• Digital Tv
• Digital Marketing
• Social Media
• Display Advertising
• Microsoft Office