Senior AI/ML Engineer — Scalable Decision Automation

King; Barcelona; On-site; EUR 180,000 - 260,000; Full time

Job summary

King is seeking a Principal AI/ML Engineer for the Decision Automation team behind Candy Crush Saga, based in Barcelona, Stockholm or London. This is a hands-on senior leadership role to shape scalable decisioning foundations across live game systems.

You will mentor senior engineers, set production AI/ML standards, and collaborate with product, analytics, and game teams to deliver reusable, scalable capabilities for faster experimentation and smarter player experiences.

Qualifications

• Experience building and shipping production AI/ML systems with measurable impact.
• Ability to lead across teams and communicate complex ideas clearly.
• Strong grounding in production guardrails, observability, and reliability.

Responsibilities

• Define shared AI/ML patterns and architectural direction across Candy Crush Saga.
• Hands-on production coding, prototyping, and implementation on critical paths.
• Set production AI/ML standards for reliability, observability, and quality of execution.

Skills

Production AI/ML

Architectural direction

Mentoring

Cross-functional leadership

Tools

TensorFlow

PyTorch

MLOps

Job description

King is seeking a Principal AI/ML Engineer for the Decision Automation team behind Candy Crush Saga, based in Barcelona, Stockholm or London. This is a hands-on senior leadership role to shape scalable decisioning foundations across live game systems.

You will mentor senior engineers, set production AI/ML standards, and collaborate with product, analytics, and game teams to deliver reusable, scalable capabilities for faster experimentation and smarter player experiences.