Senior Growth Marketing Manager, Paid Social

Brex is seeking a Senior Growth Marketing Manager to own, scale, and optimize its Paid Social engine, with Meta as the core growth driver.

The Marketing team at Brex tells the company's story, turning product innovation into customer obsession.

Responsibilities:

• Own Meta + emerging channel budgets, CAC efficiency, conversion, and downstream pipeline/revenue across self-serve and sales-led motions.
• Partner with Data and Marketing Ops to improve conversion signals, CAPI, and offline conversion tracking.
• Build and execute a continuous, hypothesis-driven testing framework across audiences, bidding strategies, optimization events, landing pages, and creative concepts.
• Build paid social strategies that create demand at the top of the funnel and efficiently convert it through retargeting and lower-funnel programs.
• Translate performance data into creative hypotheses and partner with Brand and Design to test, iterate, and scale winning concepts.
• Use first-party data, intent signals, modeled audiences, lookalikes, and platform automation to identify and scale high-value audiences.
• Partner with Analytics, Marketing Ops, Field / Events team, PMM, and Sales to connect paid social performance & programs to downstream pipeline and revenue outcomes.

Requirements:

• 5+ years of growth or performance marketing experience, with deep hands-on expertise managing and scaling Meta as a primary acquisition channel.
• Demonstrated experience owning a paid social channel end to end, including strategy, budgets, forecasting, campaign architecture, optimization, and performance reporting.
• Relentlessly analytical: Deep understanding of unit economics (CAC, LTV, payback periods), attribution modeling, and how to connect platform metrics directly to down-funnel business impact.
• Experience running full-funnel paid social programs, from awareness/video and demand generation through conversion and pipeline.
• Strong expertise in audience strategy and platform automation, including first-party audiences, lookalikes, broad targeting, retargeting, and automated campaign products.
• Strong understanding of conversion signals and measurement, including Meta CAPI, server-side tracking, attribution, conversion-event strategy, and CRM/offline conversion data.

Compensation: The expected salary range for this role is $131,080 - $163,850.