Senior AI/ML Engineer

Senior AI/ML Engineer

Craft: Data, Analytics & Strategy

Job Description:

Senior AI/ML Engineer

Job Description

Are you passionate about solving complex Machine Learning challenges at massive scale? Do you want to build systems that don’t just power features - but redefine how a global game operates?

Join us as a Senior AI/ML Engineer and help shape the future of AI and decision automation at King.

Your role within our Kingdom

You’ll be part of the Decision Automation team for Candy Crush Saga - a cross-functional team focused on enabling Faster. Smarter. Player-centric decisions at scale.

Working alongside analysts, product managers, game designers, and AI/ML engineers, you’ll lead the design and implementation of ML systems that:

• Automate complex decision workflows.
• Personalize experiences for hundreds of millions of players.
• Reduce manual operational load while boosting impact and efficiency.

Our mission? To change how Candy makes decisions - moving from manual, feature-by-feature tuning to real-time, player-centric decision automation. From in app purchase offer optimization to feature personalization, your work will directly shape how Candy Crush Saga evolves and delivers joy to players around the world.

With 250+ million monthly active users, the scale is enormous - and so is the opportunity. This role demands both deep technical expertise and strong stakeholder management - influencing strategy, aligning diverse teams, mentoring peers, and representing our work across King.

Skills To Create Thrills

So, what about you? You’re not only a technical expert but also a collaborative leader who thrives in complex, fast-moving environments. You have experience in several of the following areas:

Core Expertise

• Advanced degree (MS/PhD) in Computer Science, Engineering, Physics, Mathematics, or a related field - or equivalent experience.
• 5+ years of experience applying Machine Learning in production, covering the full lifecycle: prototyping, training, serving, and monitoring.
• Strong foundation in advanced ML and data science concepts, with a proven ability to apply them in large-scale systems.

Practical Software Skills

• Proficient with GCP data products (Vertex AI, BigQuery, Cloud Storage, Dataflow, Pub/Sub).
• Strong software engineering fundamentals, including CI/CD for ML workflows.
• Experience designing robust, scalable, and maintainable ML systems in collaboration with MLOps.

Collaboration & Leadership

• Proven ability to lead cross-functional projects with accountability for delivery and quality.
• Skilled at managing diverse stakeholders - from game designers and product managers to data analysts - balancing technical depth with clear, outcome-focused communication.
• Comfortable operating in fast-changing environments, bringing clarity and direction amid ambiguity.
• A supportive mentor and coach who helps others grow while fostering a culture of collaboration and learning

Tasty Bonus Skills

Have any sweet experiences with some of these? Then we’d love to hear about it!

• LLM-based AI agents, contextual multi-armed bandits or causal ML.
• A love for games - whether it’s mobile, console, or board games!

About King

With a mission of Making the World Playful, King is a leading interactive entertainment company with more than 20 years of history of delivering some of the world’s most iconic games in the mobile gaming industry, including the world-famous Candy Crush franchise, as well as other mobile game hits such as Farm Heroes Saga. King games are played by more than 200 million monthly active users. King, part of Microsoft (NASDAQ: MSFT), has Kingsters in Stockholm, Malmö, London, Barcelona, Berlin, Dublin, San Francisco, New York, Los Angeles and Malta. More information can be found at King.com or by following us on LinkedIn, @lifeatking on Instagram, or @kinggames on X.

About Us

We bring moments of magic to hundreds of millions of people every single day. We create unforgettable games that are loved around the world.

We take the art and science of gaming to the next level through curiosity for the unexplored, passion for games, respect for each other, and love for our players.

Who we are

King is a leading interactive entertainment company for the mobile world, with people all around the world playing one or more of our games, including franchises such as Candy Crush, Farm Heroes, Pet Rescue and Bubble Witch. We have 249 million monthly active users as of fourth quarter 2019 across web, social and mobile platforms. King was acquired by Activision Blizzard Inc. (Nasdaq ATVI) in February 2016 and operates as an independent unit of the company.

Our passion

Making great games is incredibly challenging but we’ve proven it can be done… and we see a world of possibilities ahead. We’re challenging ourselves to dream bigger in a Seriously Playful way. We’re experimenting, learning, and adapting continuously to shape the industry in ways yet to be imagined.

We’re passionate about bringing moments of magic to our players and we’re not afraid to have fun along the way. Above all, we play as a team, helping each other have impact on a massive scale. And we’ll know we’ve outdone ourselves when we’ve inspired the world to play.

If you share our passion, our values, and our hunger to shape the future, join us in Making the World Playful!

Together, we’ll create new experiences that raise the bar, delight billions of people, and redefine the world of games again and again.

This Applicant Privacy Notice summarizes how the information you submit as a job applicant through this website will be handled and protected by King and its subsidiaries ("we" or "us") For full details regarding the types of information we may collect from you, how and why we use this information, and with whom we share this information, please see our Applicant Privacy Policy.

Read More