Gregory Olmstead

Greg Olmstead is a cloud security and architecture expert and co founder of Nubelo, a Barcelona based consultancy helping teams build and operate secure cloud and AI systems at scale. With nearly two decades of experience across organizations including Bloomberg, RBC Capital Markets, Citibank, and Thomson Reuters, Greg has designed and operated large scale distributed systems across both on premises and cloud environments. His work sits at the intersection of AI, security, and platform engineering, including developing patented AI technology, building secure LLM training and experimentation infrastructure, and advising teams on real world agentic AI implementations. Greg specializes in translating complex security and governance requirements into practical architectures that enable teams to move fast without increasing risk. A frequent speaker at international security conferences, Greg brings a deeply practical, builder led perspective focused on what it takes to run modern cloud and AI systems reliably in production.