Agency:

Hearts & Science

Job Function:

Media

Job Subfunction:

Performance Media

Job Description:

About the Role 

You will work on paid search day‑to‑day delivery, optimisation and governance of campaigns across EMEA via our Hub in London for ON Running as part of a unified digital activation strategy.

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

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

Key Responsibilities 

Campaign Setup & Activation 

Assist in building and launching campaigns across Google Ads, Microsoft Ads, and paid social platforms 
Support campaign trafficking and configuration 
Ensure campaigns follow established best practices and account structures 

Campaign Optimisation 

Monitor campaign performance and identify optimisation opportunities 
Support adjustments to bids, budgets, targeting, and creative 
Assist with search query mining and negative keyword management 

Reporting & Performance Monitoring 

Help prepare weekly performance reports and dashboards 
Monitor campaign pacing and identify anomalies 
Support analysis of campaign results and performance trends 

Collaboration 

Work closely with managers, analysts, and cross-channel teams 
Coordinate with internal teams and external vendors where required 
Support cross-market collaboration across different regions 

About You

Some experience in paid search, digital marketing or performance media 
Experience in paid search platforms
Strong analytical and organisational skills 
Comfortable working with data in Excel or reporting tools 
Strong attention to detail and ability to manage multiple tasks 

Nice to Have 

Experience with wider digital platforms 
Additional language skills 
Interest in data-driven marketing and campaign optimisation  



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/