I am seeking a skilled developer to build a custom web application. The application will be used internally by our sales and support teams to manage customer accounts and track orders. It should have a clean, intuitive interface that allows users to easily view customer profiles, place and manage orders, access support tickets and reports. The application must be built with security, scalability and cross-browser compatibility in mind. Technology preferences include Node.js and MongoDB for the backend connected to a PostgreSQL database. For the front-end, preference is for a modern framework like React or Angular that supports responsive design. Integration with our existing CRM and accounting systems via APIs is also required. SEO best practices should be followed to improve search visibility of any related landing pages. The developer should have a portfolio demonstrating experience building similar web applications. Expertise with backend frameworks like Express and front-end JS libraries is essential. Bonus consideration for any experience with OAuth and payment integrations. Unit testing and documentation are expected to ensure code quality and support. The goals for this project are to streamline our teams' workflows, gain key customer insights and manage orders more efficiently. A well-designed, fully-functional application built according to specs is required for a successful outcome. Security, performance and maintainability will be top priorities in the evaluation of all bids.