Senior Performance Media Manager, Planning

Agency:

Critical Mass

Job Function:

Media

Job Subfunction:

Media Planning and Buying

Job Description:

Critical Mass is hiring a Senior Media Manager, Performance Planning to join our growing team. As the Senior Media Manager, Performance Planning, you will be responsible for building, executing, and optimizing performance-driven media plans across multiple client accounts. This role focuses on translating strategic direction into actionable media executions that drive measurable business results. 
 
You will: 
Build and manage multi-channel media plans across Search, Social, Programmatic, Video, and emerging channels 

Translate strategic direction into detailed media recommendations and activation plans.  

Support budget allocation, forecasting, and campaign structuring 

Ensure plans align with audience insights and business KPIs 

Monitor campaign performance and optimize toward ROAS, CPA, CAC, and conversion goals. 

Partner with activation teams to ensure accurate setup, trafficking, and execution 

Identify optimization opportunities across targeting, creative, bidding, and channel mix 

Support testing initiatives and performance reporting 

Manage day-to-day client communication and reporting needs 

Present campaign updates and performance insights 

Collaborate with Analysts, Planners, and Activation teams to ensure alignment 

Support junior team members and contribute to best practices 
 

You have: 
4–7 years of media planning or performance marketing experience 

Experience with digital platforms including Paid Search, Paid Social, and Programmatic 

Understanding of performance KPIs such as ROAS, CPA, and conversion rate 

Strong analytical and organizational skills 

Experience in client-facing environments 
 

What We Offer  
 
Global maternity and parental leave  

Competitive benefits packages  

Vacation, compassionate leave, personal/sick days, and flex days  

Access to online services for families and new parents  

Early Dismissal Friday’s (off at 3:00 PM local time every Friday)  

13 affinity groups  

Internal learning and development programs  

Enterprise-wide employee discounts  


Toronto: $80,000-$120,000

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/