Growth Marketing Manager

WellTheory is a digital health company helping people with autoimmune conditions take control of their health through personalized care, nutrition guidance, and ongoing coaching. The Growth Marketing Manager will play a senior role in optimizing email and direct mail programs to enhance member enrollment and engagement, working closely with the Head of Marketing to drive strategic initiatives.

Responsibilities:

• Own the strategy and optimization of WellTheory's email and direct mail programs — our two highest-volume enrollment channels
• Drive performance through segmentation, personalization, creative testing, and sequencing improvements
• Design and run structured experiments: from hypothesis, establishing a baseline, estimating an expected delta, and establishing clear KPIs
• For direct mail: test formats and creative, and track response rates rigorously
• For email: own campaign strategy, segmentation, an A/B testing roadmap, and lifecycle flow architecture
• Integrate offline (direct mail) and online (email, SMS) channel strategies into a cohesive member journey
• Analyze the end-to-end enrollment funnel, identify drop-off points, and develop clear recommendations for optimizations — then execute on them
• Monitor all performance data daily and weekly; be one of the first people to know when something breaks or something's working
• Design and run structured experiments: from hypothesis, establishing a baseline, and establishing clear KPIs
• Conduct user research to understand who WellTheory's members are, what motivates them to enroll, and what keeps them engaged and translate those insights into smarter targeting, sharper messaging, and better product marketing
• Partner with employer and health plan clients to support successful member enrollment — including responding to client communications and creating one-pagers and enablement materials
• Present performance, insights, and recommendations to senior leadership clearly and with conviction
• Help keep the marketing team's Asana organized and up to date as it relates to email and direct mail campaigns

Requirements:

• Deep expertise in email and/or direct mail. You've owned one or both of these channels end-to-end — not just executed campaigns, but driven strategy, testing, and measurable performance improvement over time
• You're equal parts strategist and executor. You can diagnose the funnel, form a thesis, prioritize ruthlessly, and build a plan you can defend
• You can move fluently between the data and the creative: you can read a funnel report and write a killer creative brief off the same insight
• Work autonomously and move fast — without cutting corners
• Have project management instincts. You keep things organized, communicate proactively, and make sure nothing falls through the cracks
• Can woo clients and present to leadership. You communicate with clarity and confidence
• Experience in health tech, digital health, or another B2B2C model
• Familiarity with employer-sponsored benefits or health plan distribution and how to market within that context
• Experience with email deliverability and deep understanding of how marketing automation platforms like Iterable, ActiveCampaign, or Customer.io work
• Track record of integrating offline (direct mail) and online (email, digital) channel strategies
• Background in a fast-moving startup where you were the marketing team (or close to it)
• Experience identifying and testing new acquisition channels