Global Product Experience team creates groundbreaking user experiences across Siri markets. As part of this group, you will work in one of the most exciting environments with state-of-the-art machine learning (ML) and AI models applied to production problems. We build machine learning (ML) technologies that scale to all Siri languages. Description In General Siri, we are responsible for the end-to-end user experience in all Siri markets. As an ML engineer in Global Siri, you will help us build and apply ML solutions to scale new features across different languages and modalities. You should be able to work with large scale systems, write high quality code, work effectively with agentic AI tools, and be comfortable in contributing to existing systems and developing new ones. Independently design and execute modeling experiments to validate training methodologies and model architectures
Develop mechanisms to automate data creation and data filtering across different languages




Devise automated approaches to evaluate and improve the performance of agents across multiple languages and modalities
Build and ship ML based products at high quality for worldwide Apple customers
Expertise in innovating with large-scale AI models (text, speech, and/or vision), in-depth knowledge of the latest advancements in the field and a deep understanding of LLM training, prompting, and fine-tuning.
Experience with multilingual data, machine translation and understanding of the complexities and tradeoffs involved when scaling to non-English languages.
Proficiency in Python and modern ML frameworks such as TensorFlow, PyTorch or JAX.
MS or PhD in Computer Science, Artificial Intelligence, Machine Learning or related field.
Experience with multilingual and multimodal LLMs.
Experience with or strong interest in agents, tool-use, planning and multi-step reasoning.
Experience shipping production grade ML or DL based applications.
Optionally experience with building on-device software and models.

📌 Multimodal Machine Learning Engineer, Global Siri (España)
🏢 Apple
📍 España