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

Project Description 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).Responsibilities •     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 architectureRequirements (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 levelNice 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 domainWe 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