Media Manager (Investment)

Join Critical Mass as our Media Manager (Investment), with a focus on media billing and operational oversight. In this role, you will lead and oversee key media investment processes, ensuring accurate and timely billing, effective campaign management, and strong financial controls across client accounts. You will partner closely with investment, account, finance and operations teams to resolve complex issues, improve processes, and ensure campaign and billing activities are delivered accurately and efficiently. If you have strong analytical skills, exceptional attention to detail, experience in media investment or billing, and thrive in a fast-paced environment, we invite you to apply and become a key part of our team.

The ideal candidate should be comfortable working in alignment with Eastern Time (ET).

You Will

• Own the coordination of campaign timelines and provide day-to-day operational support to the investment team throughout campaign activation, including actualization, billing validation and vendor invoice reconciliation.
• Manage campaign setup, buy entry and ongoing maintenance across relevant media systems, ensuring all activity aligns with client-approved budgets, Media Authorization Forms (MAFs) and agreed buying parameters.
• Review