Senior Manager, Agency Partner Management

What you'll do

• Lead, coach, hire, and ramp Agency Partner Managers, driving accountability for gross media spend growth, new business, and partner health.
• Own your team's number: forecast spend and expansion, track targets, and ensure every account has a clear growth plan.
• Turn untapped brand opportunities, campaign strategies, products, channels, and seasonal and vertical programs into incremental spend.
• Run portfolio reviews, pipeline reviews, and one-on-ones that drive action, and strengthen business reviews, audits, and optimization through strategy checks and direct feedback.
• Set portfolio segmentation and coverage, build repeatable onboarding and growth playbooks, and prioritize training, workshops, webinars, and self-service resources that build platform fluency.
• Build relationships with agency budget decision-makers, lead escalations and critical reviews, and track spend, performance, engagement, campaign pauses, and staffing changes to address risks early with clear recovery plans.
• Partner with Sales, Partner leadership, and Product Marketing to resolve issues and shape the roadmap; improve team processes and tools, and keep CRM reporting accurate for a trusted view of portfolio health and expansion.

What you'll bring

• 10+ years in partner management, account management, customer success, or a similar client-facing role in AdTech, MarTech, or Digital Media, including 5+ years leading teams.
• A track record of growing existing accounts against targets through upselling, cross-selling, and expansion, and coaching teams to spot opportunities, build the case, and win business.
• Experience hiring, onboarding, coaching, and developing team members, with clear accountability for performance and career growth.
• Hands-on knowledge of paid media, including CPA, ROAS, and budget pacing, and how agencies evaluate channels, run campaigns, and allocate budgets.
• Strong analytical skills, ownership of retention and account recovery, and experience using Salesforce or a similar CRM to manage pipelines, gross media spend, net revenue expansion, and forecast accuracy.
• Clear communication and influence across seniority levels, including agency leadership, plus confidence leading training, workshops, and webinars.
• Experience partnering across Sales, Customer Success, and Product Marketing, with the flexibility to navigate evolving processes, platforms, and partner needs.

What success looks like

• Gross media spend and new business targets are met or exceeded, and forecasts are accurate and consistent.
• Your team's portfolio is healthy, growing, and increasingly self-sufficient, with credible paths to incremental spend through stronger performance, new strategies, additional channels, or broader platform adoption.
• Every Partner Manager can speak confidently to the health, performance, opportunity, and risk of every account they own, and knows what action is needed next.
• Account reviews turn into prioritized recommendations, partner conversations, and measurable changes in account strategy.
• Agency partners see your team as strategic advisors, not a support resource, and bring MNTN into more of their client conversations on their own.
• Risk is identified early and the right resources are mobilized before it becomes churn.
• Your team is engaged and growing; strong performers are retained and promoted, and new hires ramp quickly.
• Sales, Solutions, Product, and Support see you as a reliable partner and a trusted source of partner insight.