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

O projekcie: Project DescriptionFor 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). We Offer / Engagement Conditions -      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 Wymagania: Requirements (Must Have) -      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 Nice to Have -      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 Codzienne zadania: - 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