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. 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.
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 delivery Stay hands‐on through meaningful production coding, technical prototyping, and implementation work on critical pathsSet a high bar for production AI/ML engineering, including reliability, observability, maintainability, and quality of executionMentor senior engineers and raise the standard of technical judgment, design quality, and cross‐team collaborationLead the shared archit

📌 Principal AI Engineer (Barcelona)
🏢 King
📍 Barcelona