Senior Growth Marketing Manager - Meta & Paid Social

Brex; San Francisco (CA); Hybrid; USD 131,000 - 163,000; Full time

Job summary

Brex is seeking a deeply analytical, growth-oriented Senior Growth Marketing Manager to own, scale, and optimize our Paid Social engine, with Meta as the core driver. This role focuses on down-funnel pipeline, CAC efficiency, and customer acquisition in a fast-paced fintech environment in San Francisco.

You will build signal architecture, scalable audiences, and a high-velocity creative testing engine, tying upper-funnel investments to near-term impact and long-term value.

Qualifications

• 5+ years in growth or performance marketing, with hands-on Meta management.
• Experience owning a paid social channel end-to-end.
• Analytical with understanding of CAC, LTV, and payback.
• Experience with full-funnel paid social and conversion to pipeline.
• Strong audience strategy and platform automation.
• Ability to translate data into creative briefs.

Responsibilities

• Own Meta + emerging channels budgets and CAC efficiency across self-serve and sales-led motions.
• Improve conversion signals, CAPI, and offline conversion tracking to optimize quality of customers.
• Build a continuous, hypothesis-driven testing framework across audiences, bidding strategies, optimization events, landing pages, and creative concepts.
• Develop paid social strategies for top-of-funnel demand and efficient conversion through retargeting and lower-funnel programs.
• Translate performance data into creative hypotheses and partner with Brand and Design to scale winning concepts.
• Use first-party data, intent signals, modeled audiences, lookalikes, and platform automation to scale high-value audiences.
• Partner with Analytics, Marketing Ops, Field/Events, PMM, and Sales to connect paid social to downstream pipeline and revenue outcomes.

Skills

Growth marketing

Meta advertising

Paid social

Attribution modeling

Unit economics

Experimentation

Cross-functional collaboration

Job description

Brex is seeking a deeply analytical, growth-oriented Senior Growth Marketing Manager to own, scale, and optimize our Paid Social engine, with Meta as the core driver. This role focuses on down-funnel pipeline, CAC efficiency, and customer acquisition in a fast-paced fintech environment in San Francisco.

You will build signal architecture, scalable audiences, and a high-velocity creative testing engine, tying upper-funnel investments to near-term impact and long-term value.