Candy Crush Saga | KingCraftData, Analytics & StrategyJob DescriptionPrincipal AI/ML Engineer – Decision AutomationAre you motivated by building the shared decisioning foundations for how a live game learns, experiments, and adapts at scale?
Join King as a Principal AI/ML Engineer in the Decision Automation team for Candy Crush Saga. In this role, you will help turn fragmented AI/ML and decisioning approaches into scalable, production‐grade systems that support faster experimentation, safer adaptation, and more coherent player experiences across the game.
This is a hands-on senior technical leadership role. You will shape direction through architecture, code, prototyping, design reviews, and deep technical judgment. We are not looking for a strategy‐only leader. We are looking for someone who can build, simplify, and connect complex systems across team boundaries.
The RoleYou'll join the Decision Automation team within Candy Crush Saga: a cross‐functional AI/ML team working closely with product, analytics, engineering, game teams, and central platform partners to enable faster,



smarter, and more player‐centric decisions across the game.
Our mission is to accelerate Candy's learning loop by automating insight generation, experimentation, and adaptation at scale. This role is central to helping define and build the shared architecture needed to make decision automation more scalable, reliable, and reusable across Candy.
The team works across areas such asCausal inference and simulation capabilities usable by product teamsGeneralized automated decisioning systems across multiple game featuresOrchestration across ML systems to reduce conflicting treatments and coordination overheadWith hundreds of millions of players, the systems you help shape will operate at significant scale and influence core player‐facing decisions across Candy Crush Saga.
What You'll DoInfluence technical direction across Candy Crush Saga in AI/ML and decisioning through credibility, clarity, and

📌 Principal AI/ML Engineer (Barcelona)
🏢 King
📍 Barcelona