About the Role You will play a key role in building and evolving a large-scale eInvoicing 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 Engineering Work with Azure and SAP Cloud Platform for integration solutions Drive modernisation using event-driven architectures (e.g. Kafka) Collaborate with DevOps teams on CI/CD, automation, and infrastructure Monitoring & Reliability Implement end-to-end monitoring, logging, and observability Build dashboards to track system health, transactions, and KPIs Define and maintain operational and deployment runbooks Ensure high availability, performance, and scalability Leadership & Strategy Engage with stakeholders to define and prioritise requirements Lead migration planning and recommend future-state architectures Mentor and guide junior developers and integration engineers Drive best practices across design, testing, and delivery Essential Skills & Experience Strong experience in Java development within enterprise environments Deep knowledge of enterprise integration patterns and middleware (EAI) Proven SAP FI experience and integration knowledge Hands-on experience with IDocs and mapping to XML/JSON Experience working with high-volume, multi-partner integration systems Strong understanding of cloud platforms (Azure) and SAP Cloud Platform Experience implementing monitoring, logging, and observability solutions Strong stakeholder engagement and communication skills Advantageous Experience with eInvoicing or financial systems Apache Kafka / event-driven architectures SAP integration technologies (PI/PO, CPI, BAPI) Docker, Kubernetes, AKS CI/CD pipelines (Azure DevOps, GitHub Actions, Terraform) Security and compliance in financial integrations Performance tuning and large-scale system optimisation Dashboarding and reporting tools (e.g. Azure dashboards, BI tools) AI-driven automation or analytics within DevOps/integration environments Qualifications Degree in Computer Science, Software Engineering, or related field 5+ years experience in enterprise integration, middleware, or systems architecture Proven delivery of complex integration solutions across multiple systems