Data Analyst

Data Analyst Location: Dunstable (2 days per week onsite) Duration: 3 Month Contract Start Date: ASAP Rate: £478 per day Inside IR35 Overview We are seeking an experienced Data Analyst to join a business-critical Martech transformation project. The successful candidate will play a key role in analysing, reconciling, and consolidating large-scale customer data sets across multiple systems to support the migration into a new marketing technology environment. This is an exciting opportunity for a proactive and technically strong analyst who enjoys solving complex data challenges and working with large volumes of customer data. Key Responsibilities • Perform detailed analysis and reconciliation of customer data across multiple source systems. • Work with large-scale datasets (40M+ records) to identify discrepancies, data quality issues, and opportunities for consolidation. • Support the creation of a single, accurate, and trusted customer dataset for migration into a new Martech platform. • Develop and execute complex SQL queries to extract, manipulate, validate, and reconcile data. • Collaborate closely with business and technical stakeholders to understand data structures, mappings, and migration requirements. • Conduct data validation and quality assurance activities throughout the project lifecycle. • Produce clear analysis, documentation, and recommendations to support decision-making. • Support ongoing improvements to data processes and methodologies. Essential Skills & Experience • Strong commercial experience as a Data Analyst. • Advanced SQL skills with the ability to work on complex data analysis and reconciliation tasks. • Hands-on experience with Databricks. • Experience working with modern cloud-based databases and data platforms. • Proven track record of analysing and managing large and complex datasets. • Strong data quality, validation, and reconciliation experience. • Excellent analytical and problem-solving skills. • Strong communication skills with the ability to engage both technical and non-technical stakeholders. Desirable Skills & Experience • Experience working on Martech, CRM, Customer Data Platform (CDP), or customer data migration projects. • Understanding of customer data management and customer journeys. • Experience within customer-focused or consumer-facing environments. • Exposure to data migration and transformation programmes.