About the projectYou'll be part of a team building a new, central backend system for a large-scale logistics ecosystem, a generalized interface that will become the “brain” for all operational processes. The backend will serve as the main server handling business logic and system communications across the organization, connecting multiple applications and integrations.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 Support in designing and developing RESTful APIs using .NET 6 and ASP.NET Core Implement core functionalities under the guidance of senior developers Participate in integration work with various internal systems (e.g. warehouse, complaint, and authorization systems) Contribute to maintaining database structures and queries in SQL Server Collaborate with the team to ensure clean, testable, and efficient code Assist in debugging, troubleshooting, and optimizing backend performance Participate in code reviews and documentation preparation Must have 1–2 years of experience in .NET development (commercial or strong internship background) Basic understanding of C#, ASP.NET Core, and REST API concepts Familiarity with relational databases (preferably SQL Server) and Entity Framework Core Basic knowledge of Docker and message brokers (e.g. RabbitMQ) will be an advantage Interest in backend architecture, integration, and scalable systems Team player with strong communication skills and willingness to learn Proficiency in Polish (C1) and 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