Salary: £40,000 - 50,000 per year Requirements: Proven experience in data migration, data onboarding, or system implementation projects within business-critical environments Strong Excel skills, including handling large datasets, data cleansing, and use of formulas and lookups Solid understanding of data structures, mapping, and transformation across systems such as ERP, CRM, or field service platforms A hands-on, detail-oriented, and delivery-focused approach, with the ability to work in live environments where accuracy is critical Responsibilities: Leading and executing data migration activities for newly acquired businesses, ensuring accuracy and completeness across all datasets Extracting data from legacy systems, cleansing and transforming it, and preparing it for migration into SimPro and connected platforms Performing data mapping between source and target systems, ensuring consistency and alignment with business processes Using Excel and other tools to manipulate, validate, and reconcile large datasets, identifying and resolving any data quality issues Technologies: CRM ERP Excel Support More: At Complii, we are a leading integrated provider of safety and regulatory compliance services across our water, air, fire, and electrical divisions, supporting organisations nationwide to operate safely, compliantly, and responsibly. We offer a competitive salary of £40,000 - £50,000, 25 days holiday plus bank holidays, an additional day off for your birthday, and a collaborative working environment. This role provides the opportunity to work closely with senior leaders who value attention to detail, problem-solving, and delivery, as well as to support business integration and ensure the quality and integrity of the data that underpins our continued growth. last updated 15 week of 2026