Senior Data EngineerPortsmouth - Onsite 1 day a week 6 month contract - 2 year programme Inside of IR35 £600 per day My client is embarking on a major transformation of its Housing Management services - replacing several ageing, disparate systems with a single, modern, cloud-hosted Housing Management System (HMS). This high-impact, strategically backed programme will improve services for more than 15,000 households and establish a strong digital foundation for future change. We are seeking an experienced Data Lead to own and deliver the entire data migration workstream - a pivotal role in ensuring a smooth transition from the existing NEC Housing system into the new integrated platform. This is a hands-on role suited to someone who has "been through the trenches" of large-scale data migrations in housing or local authority environments. As the Data Lead, you will: Lead migration from NEC Housing to the new HMSOwn the ETL lifecycle - export, transform, cleanse, deduplicate, validate, and load.Analyse existing data structures, working with housing teams to interpret free-text or non-standard data and determine what should move into the target system. Key Skills and Experience Strong experience as a hands on Senior Data EngineerExperience working with local authority or housing associations, including regulatory requirements, compliance and consumer standards.Proven track record migrating data from systems such as NEC Housing or other major HMS platforms.Expertise in ETL pro