Sr. App Growth Buyer (Future Media Buying Lead)

Role Overview

Appiness’s main office is in Amsterdam but you can work from any of our offices in Berlin, Munich, or London. Hybrid, Senior Level, Full Ownership. We are not looking for a campaign operator. We look for someone who knows how to scale app growth and wants to build something meaningful. We’re an AI-powered App Growth Partner turning app users into shoppers and value-focused, not cost-optimized.

Responsibilities

Build and run high-performance media buying across differentiated traffic ecosystems that:

• Scale profitable app growth.
• Turn new SSP/DSP partnerships into scalable performance.
• Protect incrementality and margin.
• Create repeatable buying systems.
• Build the foundation of a future elite Media Buying team.

You will work at the center of:

• Supply strategy.
• Campaign execution.
• Scaling logic.
• Performance optimization.

Key day-to-day tasks include:

• Managing campaigns across AppLovin, ironSource, Unity, Liftoff, Moloco, InMobi, Mintegral, Chartboost, AdColony, Fyber and other DSP ecosystems.
• Setting up, optimising and scaling campaigns; selecting bidding strategies; allocating budgets; running creative tests; conducting post-install optimisation; analysing traffic quality; protecting margins.
• Launching and optimising campaigns across new traffic sources, creating testing frameworks, validating traffic quality, identifying scalable opportunities, building repeatable optimisation logic, translating testing into scalable growth.
• Building the Media Buying team – establishing processes, creating structured workflows, hiring and onboarding future buyers, transferring knowledge and best practices, building repeatable scaling systems.

Qualities & Experience

• 5–7+ years in mobile performance marketing.
• Strong hands‑on media buying experience and deep campaign management expertise.
• Experience across DSPs and app networks.
• Strong analytical mindset, structured under pressure, commercially aware.
• Hungry to build something; hands‑on platform focus; balanced risk‑reward.
• Hands‑on experience with MMPs such as Adjust, AppsFlyer or Singular; understanding of postbacks, event mapping, SKAN, cohort/LTV analysis, attribution, fraud signals, incrementality testing.
• Knowledge of Meta, Google App Campaigns, TikTok, Apple Search Ads and the roles of DSPs, SSPs, app networks, walled gardens, OEM supply and premium inventory.

Not for

• Junior UA managers.
• Dashboard optimizers.
• Pure Meta/Google buyers.
• Passive campaign operators.
• Anyone without deep app ecosystem experience.

How Success Is Measured

• Successful scaling of new traffic sources.
• Strong post‑install performance.
• Stable margin while scaling.
• Structured testing and optimisation discipline.
• Strong operational buying quality.
• Successful build‑out of Media Buying capability over time.

Why us?

Media Buying is one of the operational cores of Appiness. Your decisions directly impact performance quality, margin, scalability, client retention, and growth stability. We’re a global force with offices in 10+ countries and a diverse, collaborative team.