Full stack developer (chief expert) 0386

About the Role You will play a key role in building and evolving a large-scale e Invoicing platform , enabling seamless exchange of financial documents across multiple systems and external partners. This role requires deep expertise in enterprise integration, SAP, and cloud technologies , along with the ability to design, build, and optimise highly complex, high‑volume systems. Key Responsibilities Architecture & Integration Design Translate business requirements into scalable technical architectures Design and lead integration solutions across SAP, EAI, Java, and cloud platforms Define interface designs using IDoc, XML, and JSON formats Evaluate and modernise existing integration landscapes Development & Implementation Perform hands‑on Java development for integration components Lead implementation across complex, multi‑system environments (100+ interfaces) Design and implement transformation logic (IDoc to XML/JSON) Support deployment and production readiness Cloud & Platform Enginee...