Senior Growth Marketing Manager - Meta & Paid Social

Brex Inc.; New York (NY); Hybrid; USD 131,000 - 164,000; Full time

Job summary

Brex is seeking a highly analytical Senior Growth Marketing Manager in New York City to own, scale, and optimize our paid social engine with Meta as the core driver. You will engineer signal architecture, build scalable audience models, and run a high-velocity creative testing program to connect upper-funnel investments to down-funnel revenue.

You’ll accelerate Brex’s growth by scaling what works, improving operations, and unlocking new opportunities for impact in a hybrid NYC office.

Qualifications

• 5+ years in growth or performance marketing.
• Experience owning Meta as a primary acquisition channel.
• Strong analytical skills with CAC, LTV, and payback understanding.

Responsibilities

• Own Meta + emerging channel budgets and CAC efficiency across self-serve and sales-led motions.
• Define signal architecture and build scalable audience models.
• Establish a high-velocity creative testing engine.
• Develop full-funnel paid social strategies from awareness to conversion.
• Translate performance data into actionable creative briefs.
• Collaborate with Analytics, Marketing Ops, PMM, Design, Sales.

Skills

Growth marketing

Meta advertising

Performance marketing

Analytics

Budget management

Audience strategy

Experimentation

Cross-functional collaboration

Attribution modeling

Campaign architecture

Tools

Meta Ads Manager

CAPI

CRM systems

GA/Analytics

Experimentation platforms

Job description

Brex is seeking a highly analytical Senior Growth Marketing Manager in New York City to own, scale, and optimize our paid social engine with Meta as the core driver. You will engineer signal architecture, build scalable audience models, and run a high-velocity creative testing program to connect upper-funnel investments to down-funnel revenue.

You’ll accelerate Brex’s growth by scaling what works, improving operations, and unlocking new opportunities for impact in a hybrid NYC office.