.NET Developer Integration

About the Project

Development and maintenance of a one-way integration service from 1C 8.3 (accounting system) to EspoCRM. The service is built on .NET 10 and performs unidirectional data synchronization — reading data from 1C via OData API and pushing it to EspoCRM via REST API, using RabbitMQ as the message broker.

Responsibilities

• Maintain and develop the existing integration service
• Develop new entity mappers and handlers from 1C to EspoCRM
• Configure and monitor RabbitMQ message queues
• Work with OData API to retrieve data from 1C
• Debug and fix data synchronization issues
• Participate in code reviews and code documentation

Required Skills

Must Have

• C# / .NET 10 — core language, async/await, generics, records
• RabbitMQ — message queues, consuming events from 1C
• MediatR — CQRS pattern, commands, queries, pipeline behaviors
• EspoCRM REST API — creating and updating entities via HTTP, token-based auth
• System.Text.Json — data serialization/deserialization

Nice to Have

• Swagger / OpenAPI — API endpoint documentation
• Cronos — scheduled task execution via cron expressions
• Docker — service containerization for deployment
• Git — version control

Big Plus

• Experience working with 1C 8.3 at a data structure level
• Familiarity with EspoCRM as a product
• Experience with .NET assembly decompilation tools (dotPeek, ILSpy)
• Understanding of Mapper, Repository, and CQRS design patterns

Full-time schedule: Monday–Friday, 09:30–18:00 (remote work available)

Comfortable office in Kyiv (Okhtyrska St., 6a)