Senior Performance Marketing Manager (GTM Experimentation)

Join Gusto, a leading provider of cloud-based payroll, benefits, and human resource management software for U.S. small businesses. As a Senior Performance Marketing Manager, you will own the execution and day-to-day strategy for paid social and new channel tests, driving awareness and pipeline through paid media. You will manage significant multi-million dollar budgets, lead creative strategy and testing at scale, and identify and validate new digital media channels. This is a high-visibility role with clear accountability to pipeline and revenue targets.

• Own the execution and day-to-day strategy for paid social and new channel tests, working within Gusto's demand generation framework, with clear accountability to pipeline and revenue targets.
• Manage significant, multi-million dollar budgets with rigor, including campaign pacing, forecasting, budget-vs-actuals analysis, and making the case for paid social investment in imperfect attribution environments.
• Lead creative strategy and testing at scale: briefing creative studios and agencies, structuring meaningful experiments, interpreting complex data sets to drive actionable insights, and building a clear learning roadmap.
• 7+ years of performance marketing experience at a B2B SaaS, performance marketing agency, or high-growth consumer organization, with deep expertise in paid social and a track record of testing and scaling new channels
• Excellent cross-functional collaborator who can translate integrated briefs into paid social strategy, advocate for what the channel needs, and work effectively alongside brand, web, and comms partners
• AI-fluent in practice, not just in theory; you use AI tools consistently in your day-to-day workflow to accelerate briefs, copy, and analysis, and have a track record of implementing AI-driven efficiencies for your team
• You are analytical and data-driven, with a clear point of view on attribution in imperfect measurement environments and comfort communicating paid social's contribution to business outcomes
• Full-funnel ownership across two or more major paid social platforms (Meta, LinkedIn, Reddit, Quora, TikTok), including deep, hands-on, in-platform execution (campaign builds, audience/targeting strategy, creative testing, bid/budget management), with significant budget responsibility and a track record of driving measurable pipeline impact
• Strong creative strategy and testing instincts: you know how to structure a test, distinguish a learning from a result, and translate performance data into creative direction