GTM Growth Marketer

About Pantheon Pantheon WebOps Platform powers the open web, running more than 300,000 sites in the cloud for customers including Google, Princeton, Salesloft, and Doctors Without Borders. Every day, thousands of developers and marketers create, iterate, and scale WordPress and Drupal sites to reach billions of people globally. Pantheon’s multitenant, container-based platform enables organizations to manage all of their websites from a single dashboard. Organizations, including Clorox and the United Nations, drive results through accelerated development and real-time publishing using Pantheon’s collaborative workflows. The Role We're building an early-stage go-to-market engine for a new product and looking for a GTM Growth Marketer Manager to own the experimentation loop at its core. This isn't a traditional demand gen role. You'll design and run structured outreach experiments across ICPs and message variants, interpret the signal that comes back, and feed those learnings directly into positioning — in tight partnership with our Product Marketing Manager and overlay AE team. If you think in hypotheses, not campaigns, and you're energized by turning messy early-stage signal into crisp GTM decisions, this role is for you. What You Need to Succeed GTM Experimentation Design and run outbound experiments that cleanly isolate ICP and messaging variables Define experiment cadence, su