About the projectYou will take ownership of building the backend for a new logistics platform from scratch. The system acts as the main hub – handling integrations, business logic, and communication for multiple client applications, including a native Android app and a React-based admin panel. It is a greenfield project built on a modern technology stack with high-performance and scalability goals.Project duration: approx. 12 months with the possibility of extension.Please note: After the first three months of cooperation, participation in a standby/on-call rotation (including 24/7 availability) will be required.Tasks Design, develop, and maintain scalable REST APIs using .NET 6 and ASP.NET Core Implement complex business logic for logistics processes (e.g. deliveries, inventories, returns, claims, and dispatch) Integrate with multiple enterprise systems via REST and SOAP (e.g. warehouses, complaint, SAP/WMS, authentication) Optimize database performance and ensure data integrity in SQL Server Collaborate with cross-functional teams to define, design, and ship new features Ensure application reliability, test coverage, and adherence to clean architecture principles (DDD) Contribute to DevOps processes using Docker, Redis, and RabbitMQ Must have 3–6 years of experience in .NET backend development Strong proficiency in C#, ASP.NET Core API, and Entity Framework Core Experience with SQL Server, Docker, and Redis Familiarity with asynchronous communication (RabbitMQ or similar) Understanding of DDD principles and API design best practices Experience with unit testing frameworks (xUnit or similar) Strong problem-solving skills and focus on performance and scalability Polish language proficiency at C1 level, English B2+ Nice to have Experience with GCP/AWS, Terraform, and monitoring tools (NewRelic, DataDog) Awareness of API security and cloud best practices Experience in AI-powered code completion and assistance tools such as GitHub Copilot and Tabnine Proficiency in modern AI-enhanced IDEs, including JetBrains Rider, CLion, and Fleet Familiarity with AI-assisted test generation and debugging tools, such as Qoda What do we offer? ambitious, creative, talented & highly experienced team contributing to projects for clients all over the world flexible working hours and a possibility to work remotely We value your trust in providing us your data, thus we are striving to use commercially acceptable means of protecting it. Below you will find the necessary information about the data we collect and process when you send us your CV.The controller of your personal data is Miquido Spółka z ograniczoną odpowiedzialnością sp. k. with its seat in Krakow, Zabłocie 43a, 30-701 Kraków, Poland (“Miquido”, “We”, “Our” or “Us”). See more