Built and maintained scalable codebases with React, TypeScript, and GraphQL AWS that ensure secure and reliable web applications.Implemented TypeScript across all projects, improving code maintainability and reducing the likelihood of runtime errors.Enhance our CI/CD pipelines using AWS CodePipeline, reducing deployment time and increasing development efficiency by adding custom test reporters and updating config files to ensure all deployments have approximately 80% of success rate.Optimized performance and improved user experience through the implementation of caching mechanisms and other performance-enhancing techniques.Worked with other developers, project managers, and stakeholders to develop and prioritize product features, set project timelines, and ensure timely and high-quality deliverables.Refactored a microservice used to process binary packets received from devices improving readability, modularity, and maintainability, improving reliability from the client and decreasing its failing rate by 60%.Refactored and enhanced the current AWS infrastructure to achieve a substantial and commendable reduction in our monthly AWS expenditure by a margin of approximately 80%.