We are seeking an experienced Java Engineer with strong expertise in IBM Sterling Order Management System (OMS) and Sterling Intelligent Promising (SIP). The role combines backend development and product extension work, enabling intelligent fulfilment, sourcing optimisation, and seamless integration across order channels. You will partner with functional configuration experts and business teams to translate complex fulfilment logic into scalable, maintainable Java components - supporting both Sterling OMS core flows and the SIP decision engine.