I contributed to the development of the company's primary e-hailing solution for managing and monitoring core domain-related workflows by:- Creating an image auto-scaling service utilizing Thumbor and S3 storage.- Developing an HTML to PDF converter service using the ChromeHtmlToPdf library.- Identifying and addressing major security risks by implementing appropriate techniques, such as providing common security headers and using refresh tokens alongside JWT tokens.- Building a logging background service to store logs in S3 storage using NLog.- Developing a solution from scratch for adding and managing advertisements displayed on specific devices.- Building an MQTT client to display live app orders and drivers on a map.