GTM Growth Marketer

Pantheon is a WebOps Platform that powers the open web for over 300,000 sites, serving prominent clients like Google and the United Nations. They are seeking a GTM Growth Marketer Manager to lead experimentation in their go-to-market strategy for a new product, focusing on designing outreach experiments and synthesizing market feedback to refine messaging.

Responsibilities:

• Design and run outbound experiments that cleanly isolate ICP and messaging variables
• Define experiment cadence, success metrics, and review rhythm
• Maintain a living ICP scorecard tracking response rates, objection patterns, and segment-level conversion
• Build and manage outbound sequences across email, LinkedIn, and video
• Own pipeline metrics for the overlay AE team: MQLs, meeting-set rate, and conversion by segment
• Instrument campaigns so signal is attributable and actionable
• Synthesize response data, Gong call themes, and deal outcomes into positioning updates
• Partner with the PMM to translate field signal into messaging refinements
• Be the connective tissue between what the market is saying and what we're telling it
• Develop and iterate outreach sequences, talk tracks, and one-pagers tuned to each ICP under test
• Keep enablement materials in sync with positioning cycles — not on a separate track
• Work closely with overlay AEs to understand what's landing and what isn't
• Own the outreach and measurement toolstack (sequencing tool, CRM hygiene, pipeline reporting)
• Define and maintain reporting that surfaces experiment learnings, not just activity metrics

Requirements:

• 7+ years of B2B marketing experience, with meaningful time in demand gen, outbound, or sales-adjacent roles
• Demonstrated ability to design experiments and draw conclusions from imperfect data
• Strong instincts for outbound — sequences, hooks, personalization, and what makes a cold outreach actually work
• Comfortable working from Gong calls and deal data, not just marketing analytics
• Experience with sequencing tools (Outreach, Salesloft, Apollo, or similar) and CRM hygiene
• Collaborative working style — you'll be in a tight loop with PMM, AEs, and founders
• Experience at a company one or two stages ahead of where we are now (e.g., seed hire from Series A/B)
• Familiarity with ABM approaches and account-level signal tracking
• Background that spans both PMM and demand gen — you understand positioning, not just pipeline