Applied Scientist III, Alexa International

Alexa International is looking for passionate, talented, and inventive Senior Applied Scientists to help build industry-leading technology with Large Language Models (LLMs) and multimodal systems, requiring Basic qualifications: - PhD, or Master's degree and 10+ years of applied research experience - 5+ years of building machine learning models for business application experience - Experience with neural deep learning methods and machine learning - Experience in building speech recognition, machine translation and natural language processing systems (e.g., commercial speech products or government speech projects) - Experience with large scale machine learning systems such as profiling and debugging and understanding of system performance and scalability - Deep expertise in state-of-the-art LLM architectures, training, evaluation, and post-training techniques (SFT, DPO, RLHF, RLAIF) Preferred: - Experience in patents or publications at top-tier peer-reviewed conferences or journals - Experience in professional software and systems development Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.