Agency:

Hearts & Science

Job Function:

Account Management and Growth

Job Subfunction:

Account Management

Job Description:

About the role :

You will lead the day‑to‑day delivery, optimisation and governance of paid social campaigns across EMEA via our Hub in London for the agencies leading regional global lottery & fashion clients as part of a unified digital activation strategy.  

As an Agent of Change, you will bring technical depth, curiosity and collaborative leadership to the client, network and agency team. You will turn complex paid social signals into clear strategic direction, platform data into actionable optimisation plans and brand ambition into paid social‑driven growth.  

You operate at the centre of activation across our international hub, using shared workflows, governance frameworks and platform tools in sync with our teams in the US. 

Responsibilities  

Campaign Strategy & Optimisation  

Lead day-to-day optimisation of paid social campaigns across Meta, TikTok, Pinterest, and other platforms  
Support cross-channel activation across paid social, discovery, and emerging performance channels  
Analyse performance data to identify growth opportunities and optimisation priorities  
Manage audience targeting, creative testing, and budget pacing  
Develop structured test-and-learn roadmaps to drive incremental performance  

Reporting & Insights  

Produce weekly and monthly performance reports for client stakeholders  
Translate campaign data into clear, actionable insights and recommendations  
Monitor KPIs including CPA, CPL, conversion volume, and incremental growth  
Support the development of cross-channel performance dashboards  

Campaign Setup & Quality Assurance  

Oversee campaign setup, trafficking, and platform configuration across social platforms  
Ensure strict QA processes for campaigns, tracking, and budgets  
Review pixel and conversion tracking implementation and collaborate with analytics teams where required  

Creative & Messaging Development  

Develop ad copy and creative testing proposals  
Collaborate with creative teams to ensure messaging aligns with brand and performance goals  
Identify opportunities for creative testing, format experimentation, and messaging optimisation  

Vendor & Platform Collaboration  

Work closely with platform partners and vendors (Meta, TikTok, LinkedIn, third-party tools)  
Identify and activate beta opportunities, new ad formats, and platform innovations  
Ensure campaigns leverage the latest platform capabilities  

Cross-Market Collaboration  

Work with a global team across multiple market  
Share best practices and performance learnings across regions  
Coordinate with local teams on market nuances, language considerations, and cultural relevance  

Client experience 

Act as a point of contact for the client across Paid Social planning, optimisation & innovation 
Drive forward business continuity via client aligned quarterly priorities, QBRs & status meetings 
Work with the client on the roadmap for Paid Social maturity & innovation 
Lead the cadence and creation of client facing Paid Social case studies & opportunity showcase 

Skills & Experience  

Strong experience with platforms such as:  
Meta Ads Manager  
TikTok Ads Manager  
Pinterest  Manager  
YouTube or other social video platforms  
Experience with performance marketing reporting and optimisation  
Strong analytical skills and comfort working with campaign data  
Experience working in fast-paced, multi-market environments  

 Nice to Have  

Experience with paid search or programmatic platforms 
Experience working with ecommerce or retail clients  
Familiarity with automation tools, feed-based advertising, or campaign optimisation platforms

About the Agency:

Hearts & Science, part of Omnicom Media Group (OMG UK), are one of the fastest growing agencies in the market. Built in the digital age with agility at our core, our DNA is different from your average media agency. Our people bring to life our values of challenging conventions, celebrating difference, collaboration and positivity.

The core of our difference is rooted in our culture, something we invest significant time and energy into nurturing to ensure our people remain happy and fulfilled.

A central pillar of creating an agency Fit for the Future is making decisions that benefit our people, our agency, our partners and our clients both today and tomorrow. In media terms this means total transparency, over-and-above data governance, ethical media practices and thinking both long and short. This extends into our approach to learning & development, our diverse staff population, and social calendar.



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/