I am looking for an experienced web developer or development team to build a custom web based application for managing customs dispositions for import and export of goods. The system will be used to simplify and organize customs documentation and related data. It should allow structured data entry, reuse of stored information, storage of documents, and creation of customs disposition documents for import and export based on previously entered data. The website should be built as a multi user SaaS platform. Different users or companies should be able to register and use the platform by paying an annual subscription fee. Main purpose: The website or app should help manage all import and export operations in one place, with reusable databases, document generation, and storage of all related files under each transaction. Core requirements: Master databases The system should include databases for reusable records such as: Company names Suppliers Customers Freight forwarders Products or items Customs tariff codes Delivery addresses Contact persons Other data needed for customs disposition preparation Customs disposition creation The system must allow creation of: Import customs disposition Export customs disposition The customs disposition should be generated automatically based on selected and previously entered data. Document attachment and storage Each import or export reference must allow document storage and file attachments. For example, if I am importing goods under reference number 2026-13, I should be able to attach and store documents such as: Supplier invoice Packing list Transport documents Customs documents Payment confirmation Other related files Each reference should act as a complete digital file or case where all related documents and data are stored together and can be reviewed later. User input and document generation Users should be able to: Insert and edit data Select saved records from databases Generate customs disposition documents Save, review, and manage previous dispositions Export or print generated documents Multi user system The platform should support multiple users and multiple companies. Subscription model The platform should be built as a SaaS system where users pay an annual subscription fee to use the software. Important features: Secure login Admin panel User management Subscription management Search and filter functions Document history Ability to edit saved records File upload under each import or export reference Scalable structure for future upgrades Preferred additional features: Online payments for annual subscriptions PDF generation Email sending of generated documents Role based permissions Multilingual interface Cloud hosting recommendation Ongoing maintenance and support What I expect from freelancer: Please send your relevant experience, similar SaaS or logistics or customs related projects you have done, your suggested technology stack, estimated timeline, fixed price or development phases, and maintenance options after launch. I prefer working with someone who understands business process automation, document generation, subscription based platforms, and logistics or customs workflows.