Dean Cullen developed a prototype performance testing infrastructure for the hmcts/cnp-plum-recipes-service repository, focusing on integrating performance test stages and environment configuration within the existing CI/CD pipeline. Using Groovy and Jenkins, Dean established a traceable workflow that included both the initial setup and a subsequent rollback to ensure system stability and minimize risk. The approach emphasized careful experimentation, with all changes tracked and reversible, supporting auditability and safe iteration. While no production bugs were addressed during this period, Dean’s work laid the foundation for future performance testing by balancing innovation with robust DevOps practices and risk management.