About Company
King is a leading interactive entertainment company for the mobile world, and a cherished part of Activision Blizzard. We are the creative minds behind global sensations such as Candy Crush Saga, Farm Heroes Saga, and Bubble Witch Saga, enjoyed by millions across the globe daily. With dynamic studios strategically located around the world, including a vibrant and innovation-driven hub nestled in the heart of Barcelona, we pride ourselves on crafting engaging, accessible, and high-quality gaming experiences that captivate players of all ages. Our Barcelona office thrives as a diverse and energetic environment where creativity, cutting-edge technology, and an unwavering passion for games converge. We are committed to fostering a culture of collaboration, continuous learning, and relentless innovation, consistently pushing the boundaries of what’s possible in mobile gaming. Joining King means becoming an integral part of a legacy of gaming excellence and actively shaping the future of entertainment for a massive global audience. We are dedicated to building inclusive teams that genuinely reflect the rich diversity of our players.
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Job Description
Are you a passionate and innovative AI/Machine Learning Engineer eager to apply your expertise to develop groundbreaking features that will delight millions of players worldwide? King Barcelona is actively seeking a talented and proactive AI/Machine Learning Engineer to join our dynamic and forward-thinking team. In this pivotal role, you will be instrumental in the entire lifecycle of machine learning solutions: from designing and developing to deploying and maintaining sophisticated models that enhance player experiences, optimize intricate game mechanics, and drive data-informed decisions across our portfolio of popular titles. You will thrive within a highly collaborative, cross-functional team comprising fellow engineers, data scientists, and experienced game designers, contributing significantly to every stage of the ML lifecycle—from initial research and rapid prototyping to robust production deployment and ongoing monitoring.
This is an exceptional opportunity to tackle complex, real-world challenges, experiment with state-of-the-art AI techniques, and witness your work directly impact the enjoyment of a massive global user base. We are seeking an individual with a strong foundational understanding of machine learning principles, exceptional programming acumen, and a proactive, solution-oriented approach to problem-solving. Your contributions will span various critical areas, including advanced personalization, recommendation systems, intelligent player segmentation, precise game balancing, and effective fraud detection. Your daily work will involve handling large-scale data processing, training cutting-edge models on cloud platforms, and seamlessly integrating ML services into robust, high-performance game systems. If you flourish in a collaborative environment, are profoundly excited by the intersection of AI and interactive gaming, and possess an inherent desire to build impactful, scalable solutions, we wholeheartedly encourage you to apply and help us continue creating the world’s most engaging and beloved games. At King, we deeply value creativity, intellectual curiosity, and an unwavering commitment to quality in everything we undertake.
Key Responsibilities
- Design, develop, and implement advanced machine learning models and algorithms for various game-related challenges, including player engagement, monetization, and retention strategies.
- Collaborate closely with Data Scientists, Game Designers, and other Engineers to thoroughly understand requirements and seamlessly integrate ML solutions into production game systems.
- Build, optimize, and maintain robust, scalable data pipelines essential for efficient model training, rigorous evaluation, and reliable deployment.
- Conduct thorough experimentation, evaluation, and iterative refinement of ML models to ensure optimal performance, accuracy, and measurable impact.
- Monitor and troubleshoot deployed models in a live environment, ensuring their reliability, scalability, and efficiency while proactively addressing any issues.
- Stay abreast of the latest advancements in AI/ML research and emerging technologies, and proactively identify innovative opportunities for their application within King's games.
- Contribute actively to the team's knowledge sharing initiatives, best practices documentation, and uphold stringent code quality standards.
Required Skills
- Strong proficiency in Python and extensive experience with relevant ML libraries (e.g., TensorFlow, PyTorch, Scikit-learn).
- Solid theoretical and practical understanding of machine learning principles, core algorithms, and data structures.
- Demonstrable experience with major cloud platforms such as AWS, Google Cloud Platform (GCP), or Azure for ML model deployment, scaling, and management.
- Familiarity with data processing and big data technologies (e.g., Spark, SQL, Kafka).
- Proficiency in modern software development best practices, including version control (Git), comprehensive testing, and meticulous code review.
- Excellent problem-solving abilities and the capability to work both independently and effectively as part of a diverse team.
- Strong communication skills, with the ability to articulate complex technical concepts clearly and concisely to both technical and non-technical stakeholders.
Preferred Qualifications
- Master's or Ph.D. in Computer Science, Artificial Intelligence, Machine Learning, or a closely related quantitative field.
- Previous experience in the gaming industry or with large-scale consumer-facing applications.
- Familiarity with MLOps practices and specialized tools for comprehensive model lifecycle management.
- Experience with real-time data streaming and processing architectures.
- In-depth knowledge of reinforcement learning techniques and their applications.
- Contributions to open-source ML projects or a track record of relevant academic or industry publications.
Perks & Benefits
- Highly competitive salary package and performance-based bonus scheme.
- Comprehensive private health insurance coverage.
- Generous holiday allowance and flexible working options to support work-life balance.
- Access to an on-site gym, abundant fresh fruit, premium coffee, and a variety of snacks.
- Extensive opportunities for professional development, advanced training, and attendance at industry conferences.
- Regular social events, exciting team-building activities, and celebratory game launches.
- Contribution to a robust pension scheme for your future.
- Relocation assistance provided for eligible international candidates moving to Barcelona.
How to Apply
If you’re excited by the prospect of shaping the future of mobile gaming with advanced AI and believe you possess the skills and passion to succeed in this impactful role, we encourage you to apply directly by clicking on the application link below. Please ensure your CV and cover letter thoroughly highlight your relevant experience, technical expertise, and articulate why you are an exceptional fit for King and this specific position. We eagerly look forward to reviewing your application!
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