I was responsible for planning and estimating development tasks using Scrum methodology. I developed and maintained REST APIs and web applications using Angular, PHP, and Node.js. I also managed database evolution (MySQL, MongoDB) and worked closely with client managers to handle data flows. Additionally, I set up continuous integration platforms, designed and deployed cloud and hybrid infrastructures, and hosted high-traffic web applications. I ensured automation, continuous deployment, and functional testing in collaboration with the quality assurance team. I also performed unit and integration testing, managed servers, coordinated releases, and oversaw production deployments.