I am Rob Stacey, a Principal Software Engineer at Amazon based in London, UK. I have worked across a range of areas in computer science with a focus on distributed systems, AI, and large-scale platform engineering.
I spent a number of years working on Alexa following the acquisition of Evi, where I had been running the platform team behind the Knowledge Engine and conversation platform. At Alexa I worked on natural language understanding systems — building and scaling the pipelines that interpret and respond to what people say. I now work in Prime Video, where my focus is on AI-driven systems and features.
My background spans from PhD research in agent-based sensor networks through to building and operating production systems serving millions of users. I have a long-standing interest in agent systems and how autonomous, goal-directed components can be composed to solve complex problems — an area that has become increasingly central to my work as AI has matured. I am particularly interested in the intersection of agent frameworks, data engineering, and LLMs, and how these combine to build systems that are both intelligent and reliable at scale.
If you'd like to get in touch, there are a few ways to reach me below.



hello [at] robstacey.com