Development of a Telegram bot for automating order processing and manager operations (.NET)

C# — incorrectly specified categories?

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We are looking for a developer to create a Telegram bot that automates client communication with our internal CRM system. The bot is divided into two logical parts: client (service ordering) and administrative (accepting and processing orders by managers directly in the Telegram interface).

Functional requirements:

For clients:
- Interactive service catalog with a tree-like inline menu.
- Shopping cart and order placement with contact information input.
- Viewing the status of the current order (request to CRM via gRPC).
For managers:
- Access to the bot's admin panel via a secret token/code.
- Receiving notifications about new orders with buttons "Take to work", "Complete", "Decline".
- When clicking the button, the bot makes a gRPC call to the CRM, changing the order status in real-time for all systems.

Technical requirements:

Stack: C#, .NET, architecture based on the Dependency Injection pattern.
Security: Strict role separation (User / Admin) at the Middleware level of the bot.
Integration: State synchronization via gRPC. Network errors should be handled by a retry mechanism (Retry policy).
Logging: Full audit of manager actions through the standard ILogger.

Option 3: Modular gRPC microservice bot (For high-load systems)

Title: Development of a Telegram bot microservice on .NET 8/9 (gRPC / Clean Architecture)

Project description: It is required to write an isolated Telegram bot microservice that will be part of a distributed system. The service should be solely responsible for the transport layer: receiving Webhook notifications from Telegram (or working via Long Polling — to be discussed), translating them into gRPC calls to the main API Gateway, and sending responses back to users.

Functional requirements and architecture:

Clean architecture: Clear separation into layers, absence of business logic inside the bot's controllers/handlers.
gRPC server inside the bot: The bot should not only be a client but also raise a gRPC server so that other microservices can call the method SendMessage(UserId, Text, Keyboards) to send system notifications.
Queues (optional): Prepared for integration of a distributed cache to implement Rate Limiting (limiting the number of messages sent per second to avoid hitting limits from the Telegram API).

Requirements for the performer:

Deep understanding of asynchronous programming in .NET.
Experience in building microservice architecture.
Ability to work with .proto files and code generation.
The output is expected to be clean code, a ready Dockerfile, and brief documentation on configuring environment variables (Env variables).

Proposals 4

Bohdan Tereshchenko

1 0

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Rating 496

Budget: 81 EUR Deadline: 3 days

Separation of client/manager through Middleware with User/Admin roles and synchronization of order statuses via gRPC is a clear and workable scheme. I will create an inline catalog with a category tree, a cart, notifications to managers with action buttons, and a Retry policy for gRPC calls, logging through ILogger. Please clarify: do you need a version with Webhook + gRPC server inside the bot (microservice) or the basic Long Polling bot from the first block of the technical specifications? I am ready to deliver in 3 days.

Svyatoslav Adamov

0 0

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Rating 260

Budget: 3000 EUR Deadline: 5 days

Hello! I read the description of your project. It interests me, and I have experience with similar tasks. I am ready to start working and complete it with quality.
Questions about the project:
1. Is there already a ready concept document?
2. Do we need a basic test framework?

Roman Smolyakov

33 1

Budget: 315 EUR Deadline: 28 days

Hello, Ivan! My name is Roman, I specialize in developing Telegram bots and microservices in C#/.NET with experience in gRPC, Clean Architecture, and Dependency Injection. Over the past few years, I have implemented more than 15 similar projects, including integrations with CRM systems, automation of manager tasks, and message sending through internal services. My code is always clearly organized by layers, covered by tests, and ready for deployment in Docker containers.

I will develop your bot in two stages: the first — the client part with a tree menu, a cart, and status requests via gRPC; the second — the admin panel with order processing, status management, and full auditing through ILogger. Based on the scope of work, I propose to complete the project in 28 days for 16,000 UAH. As a bonus — free revisions and assistance with deploying the bot on your server.

The list does not show proposals concealed by the client or freelancer with a Plus profile, as well as proposals violating rules

Yvan Myronets
Germany

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Rating 40

Development of a Telegram bot for automating order processing and manager operations (.NET)

Option 3: Modular gRPC microservice bot (For high-load systems)

Bohdan Tereshchenko

Svyatoslav Adamov

Roman Smolyakov

Proposals are currently absent

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