Media Buying Manager in London

Agency:

Omnicom Media

Job Function:

Media

Job Subfunction:

Performance Media

Job Description:

We are seeking an experienced and commercially minded Media Buying Manager within YouTube to lead the activation, optimisation and performance of YouTube advertising campaigns across a diverse portfolio of clients.

This specialist role is dedicated exclusively to YouTube. It requires a deep understanding of video advertising, audience targeting, bidding strategies, brand safety, measurement frameworks and platform innovation. The successful candidate will be responsible for maximising campaign performance while driving media efficiency, audience engagement and business outcomes.

Working closely with strategy, planning and client teams, you will play a pivotal role in ensuring YouTube remains a high-performing and innovative channel within clients' media investment strategies.

Key Responsibilities

Campaign Planning & Buying

• Develop and execute YouTube media buying strategies aligned to client objectives.
• Plan and activate campaigns across YouTube formats, including:
  • Skippable In-Stream
  • Non-Skippable In-Stream
  • In-Feed Video Ads
  • Shorts Ads
  • Masthead
  • Demand Gen campaigns
  • YouTube Select
• Build audience strategies using first-party, contextual, affinity, demographic and behavioural targeting.
• Manage media budgets ranging from thousands to multi-million-pound investments.

Performance Optimisation

• Monitor campaign delivery and performance daily.
• Optimise bids, budgets, creative rotation and audience targeting to improve outcomes.
• Deliver against key KPIs including:
  • Reach and Frequency
  • View Rate
  • Cost Per View
  • Cost Per Completed View
  • Brand Lift
  • Conversions
  • Return on Ad Spend

Analytics & Reporting

• Produce insightful campaign analysis and post-campaign evaluations.
• Translate data into actionable recommendations for clients and internal stakeholders.
• Identify trends, audience insights and optimisation opportunities.

Client & Stakeholder Management

• Act as the YouTube channel expert within the business.
• Present campaign recommendations, performance updates and strategic insights to clients.
• Collaborate with planning and creative teams to ensure integrated campaign execution.
• Build strong relationships with platform representatives and technology partners.

Innovation & Platform Expertise

• Stay up to date with YouTube advertising products, automation capabilities and industry developments.
• Identify emerging opportunities across YouTube viewing trends, connected TV, Shorts and creator-led content.
• Drive testing frameworks to evaluate new targeting, creative and measurement solutions.
• Share best practices and thought leadership across the organisation.





Omnicom’s policy requires employees to work in the office for a minimum of three days a week, unless additional in-office days are directed by their agency or manager. Our objective is to increase this requirement over time, and many of our agencies as well as Omnicom’s corporate group already require five days of in-office attendance.

Omnicom is committed to hiring and developing exceptional talent. We agree that talent is uniquely distributed, and we’re focused on developing inclusive teams that can bring the best solutions to everything we do. We strongly believe that celebrating what makes us different makes us better together. Join us—we look forward to getting to know you. We will process your personal data in accordance with our Recruitment Privacy Notice.

Link to Recruitment Privacy Notice: https://www.omc.com/privacy-notice/