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An independent service handler for Excel files is required for the existing microservices system. The task involves creating a reliable pipeline for receiving, validating, and transforming data from tables into a structured database format. Functional tasks: Development of an API based on gRPC for receiving processing commands and returning execution statuses. Implementation of file parsing logic: reading large volumes of data (XLSX), cleaning, type checking, and mapping to business models. Implementation of a data access layer (Repository/Unit of Work) for saving results in PostgreSQL via Entity Framework Core. Ensuring thread safety and efficient resource usage (especially when processing large files). Technical requirements: Platform: .NET 10. Architectural patterns: Dependency Injection, CQRS, modular project architecture. Communication: Strictly gRPC. Working with Excel: Use of efficient libraries (e.g., EPPlus, OpenXML, or similar of your choice). Modularity: Code should be organized so that the service is easily scalable and testable. Expected results: A fully functional microservice ready for deployment in a containerized environment. A clean codebase adhering to SOLID principles. Documented .proto files. Basic unit tests for critical data processing nodes. Candidate requirements: In your response, please specify: Your experience with .NET in microservices architecture. Examples of how you organize DI and modularity in your projects. Experience with Excel libraries in .NET. Willingness to work with gRPC contracts.

Configuration: 1C UT 11 Address warehouse Zebra TC26 TSD Work via RDP Product scanning is performed in receiving, placement, picking documents, and other warehouse operations. Current problem: Warehouse workers operate through the Zebra TSD. When scanning, they do not always notice messages on the screen. It is necessary to implement different sound signals for different scanning results. Required functionality: Successful scanning and processing in 1C short sound signal. Barcode read by the scanner, but the product is not found in 1C another sound signal (different from successful). Error during warehouse operation incorrect cell; incorrect product; other address warehouse control errors. separate sound signal. Sounds should be played on the TSD via RDP. Preferences: use of WAV files or another reliable playback method; ability to add new types of sound messages in the future; minimal impact on the speed of TSD operation. Please specify in your response: Experience with UT 11 and address warehouses. Have you implemented similar tasks for Zebra TSD or other TSDs. Estimated cost and execution time. How the implementation of sound signals is planned.