Gary Olliffe is a Distinguished VP Analyst with the Application Platform Strategies (APS) team in Gartner for Technical Professionals (GTP). Mr. Olliffe covers a range of technical topics, including application architecture, service-oriented architecture, microservices, event-driven architecture, APIs design, API management and application integration.
Mr. Olliffe previously led the enterprise architecture team at Mercer (a global leader in talent, benefits and investment consulting services, with 22,000 employees in more than 40 countries), responsible for application platform and solution architecture, standards and strategy across the enterprise portfolio. During his tenure, he reported to the global CIO and worked closely with global line-of-business CIOs. He was also responsible for M&A IT due diligence review and integration planning.
Head of Enterprise Architecture
Application Development and Platforms for Technical Professionals
Cloud Computing for Technical Professionals
Application Architecture and Platforms for Technical Professionals
Integration Architecture and Platforms for Technical Professionals
B.S., with honors, Computing Science, Durham University
1How to design and implement SOA, APIs (including REST and GraphQL), microservices and event-driven architecture
2How to manage and govern services and REST, GraphQL and Event Driven APIs for business and application integration
3Selecting and architecting application and integration platforms and infrastructure including aPaaS, iPaaS and event brokers
4Integrating cloud-based applications with other cloud services and on-premises applications
5Implementing Platform Ops to support DevOps practices and product team agility.