Applied Scientist II, Strategic Account Services (SAS) in London

Amazon Strategic Account Services (SAS) Tech Organization is looking for an Applied Scientist who can autonomously drive scientific innovations from research to production, developing sophisticated AI solutions that serve both Amazon’s global seller base and internal Marketplace Consultants. Working in a highly collaborative environment, you’ll leverage expertise in machine learning, operations research, and statistics to translate theoretical advances in large language models, probabilistic modeling, and optimization into practical applications. The role demands strong capabilities in prototyping and iterative improvement, bridging cutting models with real‑world applications while maintaining scientific rigor and measurable business impact.

Key job responsibilities

• Lead the development of sophisticated AI solutions leveraging deep learning, large language models, and advanced machine learning techniques to transform both seller operations and internal consultancy capabilities at scale.
• Define and drive long‑term scientific vision for the organization, translating complex business challenges into innovative technical solutions that advance the state‑of‑the‑art in applied machine learning.
• Design and implement advanced ML architectures combining multiple learning paradigms—from reinforcement learning and causal inference to predictive modeling—to tackle critical marketplace challenges.
• Architect next‑generation recommendation and optimization systems that handle complex multi‑dimensional constraints while maintaining robustness and interpretability at scale.
• Drive end‑to‑end development of AI applications from research through production, collaborating with engineering teams to ensure successful deployment and conducting rigorous A/B experiments to validate impact.
• Pioneer novel applications of foundation models and generative AI, developing sophisticated evaluation frameworks while maintaining Amazon’s high standards for accuracy and reliability.
• Lead technical discussions across organizational boundaries, effectively communicating complex scientific concepts to diverse stakeholders while staying at the forefront of ML/AI research advancements.

About The Team

The SAS team aims to accelerate the full potential of our Sellers, helping them to navigate the increasing complexity of the e‑commerce space. Our team provides in‑depth strategic consultancy using a data‑driven, collaborative, and customer‑focused approach to achieve commercial goals of Amazon Sellers.

Basic Qualifications

• PhD, or a Master’s degree and experience in building models for business application.
• Experience programming with at least one modern language such as Java, C++, or C# including object‑oriented design.
• Experience in any of the following areas: algorithms and data structures, parsing, numerical optimization, data mining, parallel and distributed computing, high‑performance computing.
• Experience training and deploying machine learning systems to solve large‑scale optimizations.

Preferred Qualifications

• Experience developing, deploying and managing AI products at scale.
• Track record of investigating, designing, and delivering innovative ML solutions that drive significant business impact.

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