Senior Backend Developer (Java / .NET) – Maritime / Logistics (Ukrainian+English) (m/k/d)

Nasze wymagania: Minimum 3 years of commercial experience as a Backend Developer Senior-level expertise in Java or .NET Participation in at least 3 international projects Participation in at least 2 maritime domain projects (e.g., ships, ports, vessel visits handling, harbor logistics, maritime administration systems, shipping) Experience in building integration-heavy systems and working with APIs Strong knowledge of backend engineering topics: security, scalability, performance, maintainability Good command of English (international environment) Ukrainian language skills at minimum B2 level Mile widziane: Experience in public sector projects or mission-critical systems Knowledge of microservices and/or event-driven architecture Cloud experience (Azure / AWS / GCP) CI/CD, Docker/Kubernetes Experience working with systems involving multiple integrations and complex business processes Knowledge of logistics and transportation domain O projekcie: B2B: 1000 - 1200 PLN netto/dziennie For one of our clients participating in a public tender, we are looking for Senior Backend Developers who, together with a Frontend React Developer, will form a recommended delivery team. The project involves building a greenfield solution in the maritime / port logistics domain, supporting processes related to vessel visits and integrations with various maritime administrations and port-related systems. The system will be developed using a modern backend services architecture, with a strong focus on integrations, reliability, data security, and operational stability. The backend technology stack will be recommended by the vendor (preferred Java or .NET). Zakres obowiązków: Design and develop backend services for a maritime / logistics / vessel management system Develop backend services and APIs (REST / system integrations) Participate in business and technical requirements analysis Implement integrations with external maritime and port administration systems Design and optimize data models and business logic Work in an international environment and collaborate closely with the client and project team Ensure code quality (code reviews, testing, standards, documentation) Support the definition of the technology stack and solution architecture Oferujemy: Work on a high-impact greenfield project Long-term cooperation 100% remote work model Real influence on technology stack selection and system architecture Collaboration in an international environment and participation in a maritime industry project