Amazon
Applied Scientist - LLM, Alexa
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Applied Scientist - LLM, Alexa
Applied Scientist-Role (Natural Language Processing and LLMs)
Alexa is seeking an Applied Scientist with a strong expertise in Natural Language Processing (NLP) and Large Language Models (LLMs) to enhance state-of-the-art conversational systems.
About the Role
In this position, you will work closely with a team of scientists training the Large Language Models that underpin the Alexa stack, as well as engineers deploying these systems in production environments. You'll take ownership of end-to-end solutions—from conception and research all the way through implementation and deployment—empowering conversational assistants to better integrate tools, extract diverse information sources, and enable advanced reasoning for Alexa's global customer base.
Key Responsibilities
- Develop advanced and innovative algorithms to address the challenges of conversational assistants, bridging the gap between research and practical implementation.
- Collaborate with scientists and engineers to research, design, and implement novel NLP models, architecture frameworks, and representations for processing natural language.
- Analyze customer behaviour data to define and refine metrics that drive actionable improvements in user experience.
- Present research findings and insights through written reports, technical publications, and presentations—to both specialist and non-specialist audiences.
- Embrace an agile mindset: combining scientific expertise with execution skills to deliver high-quality solutions in production settings.
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A Day in the Life
As part of Alexa Science, you'll:
- Drive innovation in product experiences, evaluating new features while continuously refining model capabilities.
- Partner with scientists fine-tuning LLMs, engineers building scalable inference systems, and product teams shaping user needs.
- Resolve model and system integration challenges by diagnosing and addressing root causes at scale.
- Work across our multidisciplinary teams to ensure the technical backbone—models, response efficiency, and interaction pragmatics—aligns with user expectations.
About the Team (Alexa Intelligence Layer)
Our mission is to deliver a smarter conversational interface for Alexa. We integrate cutting-edge LLMs, conditional decision-making algorithms, and high-performance ML systems. Our work has a direct impact on Alexa’s core product experience, determining when models serve a request, refining response accuracy, and crafting natural flow that seamlessly engages users.
Core team values:
- Rigor in experimentation and evidence-based decision-making.
- Transparency in communication across disciplines.
- Scalability—innovation must work reliably across millions of interactions.
Qualifications
Basic Qualifications
- A PhD (or a Master's degree with industry experience) in Computer Science, Cognitive Engineering, Machine Learning, or relevant fields.
- (C++ or Python or Java) programming proficiency with experience in ML model development frameworks like TensorFlow, PyTorch, or custom pipelines.
- Track record of implementing machine learning models that address real-world business demands.
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Preferred Qualifications
- Peer-reviewed publications or patents from top-tier conferences or journals (e.g., ACL, NeurIPS, ICML, CVPR).
- Experience in one or more of these domains:
- Advanced algorithms and data structures (e.g., optimization, graph algorithms).
- NLP parsing techniques, multimodal modeling, or language generation.
- Numerical optimization, federated/privacy-preserving learning.
- Distributed or parallel computing paradigms for training and inference.
Benefits & Commitment
Amazon fosters an inclusive environment where diverse perspectives drive innovation.
- Equal opportunity employer—no discrimination against veterans, people with disabilities, or others protected by law.
- Committed to advance privacy security for candidate privacy and details (visit Amazon’s Privacy Notice). Requirements for workplace accommodations can be reviewed here.
- Company site [Evi Technologies Limited] – contributing to Alexa+ intelligence pilot technologies.
Job ID: A10458345
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