I have extensive experience with AWS, having worked extensively with services like EC2, S3, RDS, and Lambda. My role involved designing scalable architectures, managing data storage solutions, and implementing serverless functions. This experience has equipped me with a deep understanding of cloud infrastructure and the ability to optimize performance and cost-efficiency.

Ensuring data security involves a multi-layered approach. I implement robust encryption methods, use secure authentication protocols, and regularly audit access controls. Compliance is maintained by staying updated with relevant regulations and standards, such as GDPR or HIPAA, and integrating compliance checks into the development lifecycle.

Data migration requires careful planning to ensure data integrity and minimal downtime. I typically start by assessing the source and target systems, then develop a migration plan that includes data validation and rollback strategies. Using tools like AWS Data Migration Service or Azure Database Migration Service helps automate and streamline the process.

Troubleshooting performance issues begins with identifying the root cause through monitoring and logging tools. I analyze metrics to pinpoint bottlenecks, whether in the database, application layer, or network. Once identified, I implement targeted optimizations, such as query tuning, indexing, or scaling resources, to enhance performance and ensure stability.

One challenging project involved migrating a large-scale data platform to a new cloud provider while maintaining uptime. I led a cross-functional team, setting clear milestones and communication channels. We used a phased migration approach, rigorously testing each phase before proceeding. This meticulous planning and execution ensured a smooth transition with no data loss or service disruptions.