At Ryzeo, I successfully spearheaded various initiatives to enhance our technological infrastructure and optimize operational efficiency. Here's a snapshot of my key achievements:Cloud Migration Expertise:Orchestrated the seamless migration of legacy applications to the AWS cloud, ensuring enhanced scalability, flexibility, and cost-effectiveness.Cassandra Migration:Executed a smooth transition from a local Cassandra cluster to DataStax Astra, bolstering data management capabilities and ensuring optimal performance.CI/CD Implementations:Implemented robust CI/CD pipelines utilizing Jenkins and GitHub Actions, streamlining the development and deployment processes for increased productivity.Containerized Environments:Established Dockerized infrastructure for Test and Staging environments, enhancing consistency and reliability in application deployment.System Administration:Managed system administration for a diverse range of applications across 200+ VMs running Linux servers (CentOS, RedHat, and Ubuntu), ensuring their seamless operation.Monitoring and Alert Systems:Engineered a comprehensive monitoring and alert system employing Nagios and Slack notifications, guaranteeing proactive identification and resolution of issues in both applications and system resources.Leadership in 24/7 Support Operations:Led a dedicated team of system support engineers, ensuring 24/7 support for the TPX Sacramento data centre servers and contributing to the uninterrupted operation of critical infrastructure.