Java Developer

We're looking for a Java Developer (B2B/contract) to build the services and APIs connecting a fast-growing consumer-tech platform with its group SAP environment. This is a hands-on backend role focused on real business flows: orders, inventory, device lifecycle, invoicing, payments, returns, and financial data. You'll own integrations from design to production - writing clean code, handling failure scenarios, and working directly with SAP, product, finance, operations, QA, and DevOps teams. #javadeveloper #springboot #sapintegration #backend #apis Your role with us: You'll design and maintain Java services that connect internal platforms with SAP ERP. You'll translate operational and financial processes into reliable, well-tested integrations. You'll take ownership of solution design, delivery, monitoring, and production support. What you'll actually do: Build SAP integrations -Develop Spring Boot services and APIs for data exchange between internal systems and SAP. -Integrate through REST, OData, SOAP, IDoc, or RFC/BAPI interfaces, depending on the use case. -Map and validate data for orders, inventory, returns, payments, invoices, and master data. -Comfortable integrating internal systems with APIs from SAP ( ECC or S/4HANA for example) processes across FI/CO, MM, and SD. Make integrations reliable -Build authentication, idempotency, retries, queues, logging, and clear error handling. -Write unit and integration tests and investigate issues across system boundaries. -Monitor performance and data consistency in production. Keep delivery structured and moving -Collaborate with SAP, product, finance, QA, and other tech teams. -Estimate work clearly, document interfaces , and communicate dependencies early. -Participate in code reviews and technical decisions. What we're looking for: 3-5+ years of experience in Java development. - Strong hands-on experience with Spring / Spring Boot and production APIs. - System-integration experience with data mapping and failure recovery. -Experience with REST APIs, messaging, and relational databases. - Comfortable with Git, CI/CD, Docker, and production monitoring. - Experience writing unit and integration tests (JUnit, Mockito) - Good English and confidence working with technical and business stakeholders. Nice to have: -Experience integrating Java applications with SAP ECC or S/4HANA. - Knowledge of SAP FI/CO, MM, or SD business processes. -Hands-on exposure to SAP Integration Suite -Experience with RabbitMQ, Kafka, Kubernetes, or cloud environments.