Supervisor, Paid Social

About Us

We are Assembly, a leading global omnichannel media agency that merges data, talent, and technology to catalyze growth for the world's most esteemed brands. Our holistic approach weaves together compelling brand narratives with a comprehensive suite of global media capabilities, driving performance and fostering significant business expansion. Our initiatives are powered by STAGE, our proprietary operating system, and executed by a dedicated global team of over 2,300 professionals across 35 offices worldwide.

Committed to purposeful action, we lead the way in social and environmental impact within the agency realm. As a proud member of Stagwell, the challenger network designed to revolutionize marketing, Assembly continues to set new standards of excellence.

We are seeking a performance-driven Social Media Supervisor to lead user acquisition and brand awareness efforts across paid social platforms. This role will focus on driving scalable growth through data-driven strategy, creative optimization, and performance marketing.

This role balances hands‑on platform execution with people leadership, ensuring paid social programs drive measurable business outcomes across the full funnel while maintaining executional excellence and developing junior talent. You’ll partner closely with analytics, client leadership, and client teams to deliver efficient results.

• Translate client business objectives and serve as the primary day‑to‑day client contact for paid social execution and strategies across Meta, Tik Tok, Snap, Reddit, Pinterest, and Linked In as applicable, including performance‑driven app install campaigns and brand awareness campaigns (Reach, Awareness, Video Views, Engagement).
• Plan, launch, and optimize app install campaigns with a focus on CPI, CPA, CAC, and downstream performance.
• Lead execution and optimization of brand campaigns focused on reach, frequency, CPM efficiency, video completion rate, engagement, and brand lift where applicable.
• Manage budgets, pacing, and bid strategies across campaign types to ensure efficient spend and strong performance.
• Develop creative testing roadmaps that support both brand storytelling and performance efficiency.
• Leverage A/B testing frameworks to continuously optimize audience targeting, bidding strategies, and ad formats.
• Present campaign performance, insights, and recommendations clearly and confidently in client meetings.
• Collaborate with analytics teams to define KPIs and measure downstream performance and overall business impact.
• Utilize mobile measurement partners (MMPs) like Branch or Apps Flyer to track attribution and campaign effectiveness.
• Stay current on platform updates, privacy changes, and industry trends, proactively advising clients on opportunities.
• Directly manage and mentor Analysts, Associates, and Senior Associates across assigned accounts.
• Conduct regular 1:1s, provide performance feedback, and support career development.
• Own quality control across all paid social deliverables including campaign builds, reporting, and insights.

Why Assembly?

• We care about your growth – we offer competitive salaries and annual compensation review.
• We recognize and celebrate your success ... all the time! Whether it’s through company meetups, employee recognition programs, or just a regular day, we make sure our people’s achievements are known and appreciated.
• We’re truly a people‑first organization. That’s why we offer a Flexible Time Off policy that puts you in control of your work‑life balance, as well as market‑leading primary and secondary caregiver and parental leave policies.
• We have a hybrid in‑office/remote working policy that focuses on bringing people together in person when it’s needed most, i.e., team strategy brainstorms, learning & development opportunities, and company meetings.
• We care about social and environmental Impact – we have dedicated Impact Champions who collaborate globally to make sure we’re leaving the world better than we found it.
• We have an amazing group of Employee Resource Groups who form close knit communities and are committed to guiding the agency to become more inclusive, diverse, and…