Growth Marketing Lead

Martie; San Francisco (CA); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Martie is seeking a Growth Marketing Lead to own how we acquire customers. You will drive acquisition strategy across paid channels, manage CAC and budgets, and scale a fast-test-to-scale engine.

This is a player-coach role in a scrappy startup, reporting to the Head of Marketing. The role requires 5+ years in growth or performance marketing, deep familiarity with paid social/search, and experience integrating AI into creative and testing workflows.

Qualifications

• 5+ years in growth or performance marketing with paid acquisition ownership.
• Ability to define and drive channel roadmap and CAC budgets.
• Proven tests-driven approach with funnel optimization.
• Fluent in paid social and paid search across channels.
• Experience with AI-enabled creative and testing workflows.
• Familiarity with SEO and AI-assisted discovery engines.

Responsibilities

• Own acquisition strategy and execution across paid channels.
• Lead test roadmaps and rapid experiments to scale winning ideas.
• Manage CAC, budget mix, and channel diversification.
• Collaborate with brand, design, and AI creative platforms.
• Analyze performance data and turn insights into decisions.

Skills

Growth marketing

Paid acquisition

A/B testing

Analytics

AI in marketing

SEO basics

Tools

Meta Ads

Google Ads

A/B testing tools

SEO tools

Job description

Position Type: Full-time | Location: Los Angeles or San Francisco (Hybrid) | Reports to: Head of Marketing

The RoleWe are hiring a Growth Marketing Lead to own how Martie acquires new customers. You will run acquisition strategy and execution across paid and emerging channels, steer the funnel, and build a fast-test-to-scale engine that finds what converts and moves spend behind it. This role owns the growth function. You set the channel roadmap, call the tests, and carry the numbers. You do it in close partnership with and under the direction of the Head of Marketing. This is an individual contributor and player-coach role, in a scrappy startup (read: opportunities galore!).

What You'll Own

• Creative growth ideas. Bring creative, out-of-the-box growth ideas to the table and turn them into tests. We want someone who generates new ways to acquire customers, not only optimizes what already exists.
• Paid acquisition, end to end. Meta and Google as the base, plus active diversification (see below). You own strategy, execution, CAC, and the budget mix for an already robust program.
• Channel diversification. Brainstorm, stand up, and scale new channels such as newsletters, podcasts, connected TV (CTV), partnership placements, etc. Assess constantly and scale what's working.
• AEO/GEO readiness. Prepare Martie for answer engine and generative engine optimization (AEO/GEO), positioning the brand to be found and cited by AI answer engines as they grow into a real discovery and acquisition channel.
• Creative for new ads. Work closely with brand, designers, creators, and AI creative platforms to generate new ad concepts and keep a steady pipeline of fresh creative feeding the tests. Comfortable in the creative briefing process, not just the media buying.
• Experimentation and conversion rate optimization (CRO). Own the A/B testing roadmap and cadence across creative, audiences, and landing pages, and drive the concept-to-live landing page process with Design, Site, and Data, tested against every brand and paid campaign. Report learnings weekly.
• Analysis. Read and act on acquisition reporting and CAC by channel, analyze what's driving results, and turn the numbers into decisions.

What We're Looking For

• 5+ years in growth or performance marketing at a DTC or e-commerce brand, with direct ownership of paid acquisition and an acquisition budget or P&L.
• Team player mindset who gets the value of brand. A passion for deal hunting is always encouraged!
• Concrete, in-the-weeds depth. You can walk through tests you ran, what you learned, and what you changed.
• Fluent across paid social and paid search, product catalog ads, landing page testing, and experimentation. Comfortable owning CAC and funnel metrics.
• AI-native. You already build AI into your creative and testing workflow and want to push it further.
• Strong familiarity with SEO and emerging AI search, and a sense of how brands get discovered and cited by AI answer engines (AEO/GEO).
• Curiosity and flexibility to work in a startup environment.
• Based in LA or SF.

Nice to Have

• Track record standing up channels from zero, and optimizing mature ones.
• Grocery, CPG, or beauty category experience.

Comp and Logistics

• LA or SF, hybrid.
• Reports to the Head of Marketing.