Sr. Machine Learning Engineer, Siri Speech

We are looking for an exceptional Senior Machine Learning Engineer with deep experience in designing and developing large-scale ML systems and multimodal LLMs, with a focus on conversational AI across language and audio. In this role, you will advance the latest ML techniques and translate them into production systems that shape the Siri experience for millions of users worldwide.

We are seeking a candidate with a strong background in applied ML research and development, particularly in multimodal LLM, natural language processing/generation, speech generation/understanding, to join our cross-functional team focused on advancing capabilities in systems like Siri. We are looking for applied ML researchers who can develop end-to-end solutions from data scaling to necessary model implementation and training while collaborating with other engineering teams to bring research to production. You will develop and deploy novel deep learning technologies that make Siri more intelligent, natural, and useful. To succeed in this role, you should be a strong researcher and engineer, an excellent programmer, and a creative problem solver who enjoys learning new techniques, improving systems, and taking ownership of complex problems. You should also thrive as a team player in a fast-paced environment.

M.S. or PhD in Electrical Engineering, Computer Science or related fields

5-7+ years experience in Machine Learning

Experience in developing, training/tuning large generative models or LLMs

Experience with machine learning frameworks such as JAX and/or PyTorch

Proficient programming skills in Python

Experience in reinforcement learning

Experience with Speech LLMs or other Multimodal LLMs

Experience with building & deploying AI agents and LLMs

Experience with large scale machine learning training/evaluation

Data-centric vision and hands-on experience in developing and scaling foundation models