At CNAM (Assurance Maladie), I work across several healthcare business applications (EMS, COD, COI, 100% Santé) within a complex, distributed information system.I took over a stalled release and secured the production rollout of EMS 4.1, notably by optimizing SQL migrations running on OpenShift pods — reducing blocking incidents and improving overall application stability. I also contribute to early design discussions for the COD/COI applications' next iteration.Stack: PHP, Symfony 5, Vue.js, Docker, OpenShift, Jenkins, Linux.