Senior Growth Content Marketing Manager

Lumen is a leading health tech company empowering people to improve their metabolic health and lose weight sustainably, with revolutionary device-to-app technology that measures metabolism through a single breath. Lumen helps 350,000+ people worldwide understand how their bodies respond to nutrition, sleep, exercise, and stress levels in real time. It provides individualized recommendations that prioritize high-impact habits to improve metabolism and help people reach their weight loss goals. We’re looking for a Senior Growth Content Marketing Manager to own performance messaging end-to-end, from insight and concept through execution and iteration. This is a maternity leave replacement role for a period of six months, with an option to extend. This role is responsible for developing Lumen’s messaging framework and delivering high-performing copy that drives lead generation and conversion across ads, emails, landing pages, and partner marketing assets. You will shape and evolve positioning for weight loss and GLP-1 audiences, translating insights, strategy, and performance data into clear, compelling messaging that can be deployed and iterated at scale. This is a hands-on role that requires strategic thinking, strong execution, and use of AI to scale both the quality and quantity of performance content. You will have direct ownership of copy quality, consistency, and iteration, and operate as a core partner to Acquisition, Lifecycle, CRO, and Partnerships.