How Domino’s UK built an SRE function and modernized reliability operations

Domino's Pizza Group in the UK and Ireland has undertaken a transformation of its technology stack to enhance site reliability engineering (SRE) capabilities for its extensive network of over 1,200 stores. By shifting from a monolithic architecture to a microservices-based system, Domino's has improved its ability to test new features and manage performance and reliability across its digital ordering platforms. This change is part of the Phoenix program, which focuses on continuous improvements and modern engineering principles. The company employed academic theories, particularly those of Dorothy Leonard-Barton and David Teece, to shape its SRE strategy, developing a "capability pizza" model that identifies key components like technical systems, skills, managerial systems, and values. The implementation of SRE includes the use of GitOps workflows, New Relic for monitoring, and a focus on proactive incident response and error budget management. This allows Domino's to conduct canary testing and manage changes efficiently while maintaining high service reliability and performance standards.

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