Yaroslav Maksymchuk Email and Phone Number

• Integrated external APIs such, as Stripe, Novaposhta and a wholesale supplier into the system.• Developed REST APIs using Nest.js that can be used both internally and externally.• Utilized RabbitMQ for efficient data exchange among services.• Implemented Continuous Integration/Continuous Deployment (CI/CD) on the Amazon platform, which resulted in a 53% increase in deploymentspeed.• Employed EKS load balancer to ensure system stability and the ability a number of requests (up to 1,000,000 requests per second). • I created a web application using Node.js for the backend and React, for the frontend.• I incorporated user authentication features that include registration, login and account management to ensure the security of the application.• To enhance state management in the React application I utilized the React Query library. This helped me effectively handle data and states, in React by providing data handling and updates.