The Senior Manager, Lifecycle Marketing owns end-to-end lifecycle strategy (acquisition to expansion) and drives measurable revenue impact across the funnel. The role manages a team of three, operates as a player-coach on campaign builds and automation, partners with Marketing Operations, Growth Product, Data, Sales, and Customer Success, and uses segmentation, personalization, and experimentation to optimize trial conversion, adoption, retention, and expansion. Requires 8+ years of lifecycle marketing experience (preferably B2B SaaS) and hands-on experience with tools such as Marketo and Braze. Role is US-based (remote within the United States) with occasional travel.