Growth & Marketing Intern

About this role

What You’ll Do As a Growth & Marketing intern at Mosaic, you’ll own the strategy and execution behind how we reach, convert, and retain our users. You’ll design and run growth experiments across multiple channels, refine messaging and positioning, and build the foundation for scalable marketing systems that drive both product adoption and brand awareness. This is a hands-on role. You’ll be setting strategy one day and writing copy, analyzing funnels, or launching campaigns the next. You’ll collaborate closely with the founders and product team to shape Mosaic’s growth loops, pricing, and go-to-market strategy as we scale from early traction to mass adoption. What We’re Looking For If you’re a full-stack growth marketer who thrives on experimentation and momentum, you’ll fit right in. We’re looking for someone with: Experience driving growth at an early-stage SaaS or creator-focused startup A strong grasp of acquisition, activation, and retention metrics Experience across multiple marketing channels — paid, content, community, and partnerships Comfort using data and analytics tools to inform decisions Excellent communication and storytelling skills The ability to move quickly, learn fast, and operate independently