Senior Data/Backend Engineer (Java, AWS)

Senior Data/Backend Engineer (Java, AWS) - Finance Transformation Rate: £560/day via an umbrella company Location: Manchester (couple days/month onsite) Contract: Initial 6 month contract, extension likely - ASAP start The Opportunity We're supporting a global organisation undergoing a large-scale finance and data transformation, including the migration from SAP ECC to S/4HANA. As part of this programme, a new engineering team is being built to modernise how financial data is structured, governed and integrated across multiple business domains. This is a key role focused on building the data pipelines and backend services that underpin financial reporting and ERP integration. The Role You'll design and build cloud-native backend services and data pipelines that ensure financial data is accurate, compliant and correctly integrated into SAP and downstream systems. This role sits outside of SAP, focusing on the data and integration layer during a critical ECC S/4 transition. Key Responsibilities • Build Java-based backend services to support financial data processing • Develop and maintain data pipelines integrating multiple source systems into SAP • Ensure data accuracy, completeness and consistency during migration and dual-run • Work closely with Product, Finance and Business teams to define solutions • Support compliance requirements (e.g. SOX, GDPR) • Contribute to AWS-based cloud architecture and DevOps practices • Monitor and support production systems Tech Environment • Java/Spring Boot • AWS (cloud-native architecture) • SQL Server/data integration tools • Kubernetes/containerisation • Infrastructure as Code (e.g. CDK/Terraform) • Exposure to Python/data tooling beneficial What We're Looking For • Strong backend engineering experience (Java/Spring Boot) • Experience building data pipelines or integration services • Strong understanding of data flows and data quality • Experience working in cloud environments (AWS preferred) • Ability to work cross-functionally with business and non-technical stakeholders Nice to Have • Experience in finance systems/ERP environments • Exposure to SAP (ECC or S/4HANA) • Experience in regulated environments (SOX, GDPR)