Strategic Account Manager, EMEA, Advertising Solutions

About Appier

Appier (TSE: 4180) is an AI-native Agentic AI as a Service (AaaS) company t hat empowers businesses to create value through cutting-edge AdTech and MarTech solutions. Founded in 2012 with the vision of “Making AI Easy by Making Software Intelligent,” Appier helps businesses turn AI into ROI through its Ad Cloud, Personalization Cloud, and Data Cloud—each powered by Agentic AI that enables autonomous, adaptive, and real-time decision-making. Today, Appier operates 17 offices across APAC, the US, and EMEA, and is listed on the Tokyo Stock Exchange. Learn more at www.appier.com .

About the Role

We are seeking a Strategic Account Manager to drive revenue retention and growth across Appier's strategic accounts in EMEA. This is a senior role on our Strategic Account team, responsible for the long-term growth of a portfolio of our highest-value clients. You will find and execute the highest-impact growth opportunities across your accounts, solve the complex performance and measurement problems that unlock them, and build the client relationships and internal coordination to do this repeatably rather than one account at a time. The role is about understanding what drives account growth and owning the outcome, not just managing day-to-day delivery.

What You Will Do (Responsibilities)

Revenue Retention & Growth: Own revenue outcomes across a portfolio of strategic accounts, and hit retention and expansion targets. Find and close growth opportunities such as budget increases, product adoption, and geographic expansion. Watch for early churn signals and act on them with reactivation, retention, or commercial plans.

Client Ownership & Strategy: Build and own 12-month account growth plans covering relationship mapping, upsell and cross-sell strategy, testing roadmaps, and revenue targets. Act as a trusted advisor to clients at every level, up to executive leadership, through planning sessions and regular QBRs that focus on what actually drives their business. Gather market and competitive intelligence through these relationships, and feed it back to Product and Sales to shape strategy and the roadmap.

Technical Consultation: Translate complex technical and product concepts such as attribution, incrementality, SKAN, MMP integrations, and bidding models into clear client strategy. Work as the bridge between clients and our internal Product, Engineering, and Analyst teams, and go beyond setup support to solve the measurement and performance problems that matter most to the client.

Campaign Management & Performance Insights: Partner with the Analyst and Product teams to keep campaigns running well and optimising effectively. Build structured, hypothesis-led testing frameworks across creative and audiences, recommend creative refreshes based on performance decay and market benchmarks, and deliver insights that tie back to business outcomes rather than just metrics.

Cross-Functional Collaboration: Align and mobilise Sales, Creative, Product, Finance, and Analyst teams to execute growth plans. Own issues end to end, from internal triage through client communication to follow-through, and use clear escalation paths to remove blockers before they affect delivery.

Operational Excellence: Keep forecasting and pipeline management disciplined and current in HubSpot and internal trackers, so account health is clear at any time. Document wins and learnings for internal playbooks, and work with Marketing to turn client wins into case studies and references.

What You Bring (Requirements)

Experience: Significant experience in Mobile Advertising, AdTech, or Digital Media in a strategic Account Management, Customer Success, or client-facing commercial role, managing enterprise or strategic accounts with real revenue responsibility.

Technical Depth: Genuine fluency across the performance marketing stack, including attribution, incrementality, MMPs, SKAN and post-backs, bidding, and measurement. You can hold a credible, con