Senior Growth Marketing Manager

The Flex Company•Los Angeles, CA

2d•$130,000 - $150,000•Remote

About The Position

Flex is seeking a Senior Growth Marketing Manager to help scale the engine that drives our next stage of growth. As a design-forward brand transforming the modern period care category, Flex is expanding rapidly across ecommerce and retail channels. The ideal candidate is a hands-on operator who uses modern tools, including AI, to move faster, test more ideas, and uncover insights that translate directly into revenue growth. This role will oversee the performance of paid acquisition for digital marketing channels, driving revenue growth across Amazon, retailer.com and flexfits.com (DTC). You’ll also oversee a small pod of channel specialists across paid social, retail media, and marketplace advertising. You’ll bring structure and clarity to our growth strategy, translating performance insights into smarter investment decisions and scalable acquisition strategies. Flex leadership actively embraces modern AI tools to improve decision-making and operational velocity, and we’re looking for marketers who are equally excited to incorporate these tools into their day-to-day workflows. Flex offers a dynamic, fast-moving environment where ambitious operators can have an outsized impact. If you’re energized by experimentation, performance marketing, and the opportunity to shape the growth strategy of a category-defining brand, this role is an opportunity to help build the future of Flex. This role is remote-flexible; candidates based near our Venice, CA headquarters are a plus. Salary range: $130,000 - $150,000 per year, commensurate with experience and equity stock options

Requirements

5+ years of experience in ecommerce, growth marketing or performance marketing
Experience managing and allocating 7-figure multi-channel paid media budgets with a focus on profitability and incrementality
Demonstrated ability to use AI to accelerate performance analysis, testing velocity, or marketing decision-making
Deep understanding of MER, CAC, ROAS, contribution margin, and performance forecasting
Experience overseeing retail media networks such as Criteo, Walmart Connect, Roundel, or similar platforms
Experience managing agencies or channel specialist pods
Experience leveraging paid media to grow revenue for omnichannel consumer products businesses (Amazon, retailer.com and DTC)
Strong analytical, financial, and operational discipline
Demonstrated, high degree of accountability for revenue outcomes (not just campaign execution)
Clear communicator who can synthesize complex performance data into actionable insights

Responsibilities

Drive Ecommerce Revenue Growth via Paid Media Strategy & Performance
Own total paid digital marketing channel performance across
Drive growth on Amazon, retailer.com and flexfits.com (DTC)
Drive revenue growth while improving blended MER (Marketing Efficiency Ratio) and contribution after marketing
Reduce CAC while scaling investment responsibly
Set quarterly growth roadmaps and testing priorities aligned to revenue targets
Allocate and reallocate budgets across channels based on performance, incrementality, and margin impact
Define and continuously refine Flex’s target blended MER and efficiency benchmarks
Digital Marketing Channel Oversight & Performance Accountability
Oversee performance across:
Paid Social (Meta, TikTok, Snap)
Retail Media (Criteo, Walmart Connect, Roundel, The Trade Desk, etc.)
Marketplace Media
Paid Search and Programmatic (as applicable)
Encourage rapid testing of creative visuals and hooks, messaging angles, and campaign structures to improve paid media learning velocity
Lead weekly performance reviews with channel owners
Ensure clear KPI ownership, disciplined optimization, and consistent testing cadence
Drive accountability across internal specialists, agencies, and external partners
Reporting & Analytics
Build and maintain unified cross-channel digital marketing performance reporting
Use AI-assisted analysis to accelerate insight generation and shorten the time between performance data and optimization decisions
Deliver monthly executive-ready summaries including blended ROAS, MER, CAC trends, retail vs ecommerce efficiency, and budget pacing
Develop a clear margin-based performance view rooted in contribution economics
Improve forecasting accuracy and visibility into spend efficiency
Ensure performance insights are clearly documented and translated into action
AI-Enabled Growth Execution
Leverage modern tools, including AI, to accelerate performance analysis, experimentation, and marketing decision-making
Use AI-assisted workflows to quickly synthesize campaign data, identify performance drivers, and surface optimization opportunities
Increase testing velocity across paid media through AI-assisted ideation of hooks, messaging angles, targeting hypotheses, and landing page variations
Use AI to accelerate recurring marketing workflows such as performance reporting, competitive research, and campaign analysis
Demonstrate practical applications of AI that improve team efficiency and insight generation, helping elevate how the broader marketing team operates
Prioritize tools and workflows that drive revenue impact rather than introducing unnecessary tooling or infrastructure
Cross-Functional Partnership
Partner closely with the Director of Ecommerce to align paid growth with merchandising, inventory, and revenue objectives
Proactively communicate risks, opportunities, and performance shifts
Serve as the connective tissue across channel specialists and revenue stakeholders