Senior Data Engineer

Senior Data Engineer (SAP/ S/4HANA Migration) Contract | Hybrid (Leeds – 1-2 days per month) | Outside IR35/Day Rate DOE A major UK organisation is looking for an experienced Senior Data Engineer to join a large-scale enterprise transformation programme. This is an opportunity to play a key role in delivering complex data migration and integration solutions into a modern ERP landscape. You'll be responsible for designing and building scalable ETL/ELT pipelines, consolidating data from multiple legacy systems, and ensuring high-quality, auditable data migrations. What you'll be doing • Design and develop robust ETL/ELT pipelines for complex migration programmes • Integrate and harmonise data from multiple source systems into a unified target model • Build automated reconciliation, validation and exception-handling processes • Deliver data integrations using APIs, batch processing and messaging technologies • Support migration rehearsals, cutover activities and post-migration validation • Work closely with Data Architects, Analysts and business stakeholders • Develop reusable engineering frameworks and maintain high documentation standards We're looking for • Extensive Data Engineering experience on enterprise-scale migration programmes • Strong experience migrating data from multiple heterogeneous source systems • Advanced SQL and Python (or another programming language) • Experience with Azure Data Factory, Databricks, Synapse, Snowflake or similar cloud data platforms • Strong understanding of data quality, reconciliation and governance • Experience designing scalable, repeatable ETL processes • Knowledge of DevOps/CI-CD practices is beneficial Nice to have • SAP S/4HANA migration experience • SAP Data Services, SAP BW or SAP MDG • Utilities or Energy sector experience • Master Data Management (MDM) • Power BI or SAP Analytics Cloud Location Hybrid role with travel to Leeds 1-2 times per month.