Senior Data Engineer

Senior Data Engineer (BigQuery / Looker) 📍 London- Remote working but occasional on site presence needed 💰 Up to £525 per day | Outside IR35 📅 Initial 3-month contract with strong extension potential I'm currently partnering with a leading retail organisation that is looking to bring in an experienced Senior Data Engineer to support a key data transformation programme. The business is modernising its retail planning and reporting capabilities, replacing manual Excel-based processes with a scalable, self-service reporting solution built on Google Cloud. This is a hands-on role where you'll play a key part in designing and delivering data pipelines, data models, and semantic layers that enable better reporting and business decision-making. What you'll be doing • Build and maintain robust data pipelines within Google Cloud Platform (GCP) • Develop and optimise data models in BigQuery • Design and maintain Dataform pipelines across raw, staging, and curated (gold) data layers • Integrate multiple data sources including POS, inventory, shipping, forecasting, pricing, EDI, and portal data • Create scalable semantic models for consumption within Looker • Implement business logic including: • Weeks of Supply calculations • Inventory forecasting • On-hand vs On-order inventory • Calendar and retail reporting alignment • Ensure data quality, reconciliation, and performance across the reporting platform • Work closely with BI, commercial, and business stakeholders to translate reporting requirements into scalable data solutions Required Skills • Strong commercial experience with BigQuery (essential) • Excellent SQL and data modelling skills • Experience building data pipelines within GCP • Hands-on experience with Dataform • Experience developing data models for reporting and analytics • Strong understanding of data warehousing best practices Nice to Have • Experience with Looker and semantic modelling • Retail, FMCG, or supply chain data experience • Experience delivering self-service BI solutions The Opportunity This is an excellent opportunity to join a well-known retail business on a high-impact programme. Most of the source data already exists, with the focus on enhancing datasets, implementing forecasting and inventory logic, and enabling modern self-service reporting through Looker. If you're an experienced Data Engineer with strong BigQuery expertise and you're looking for your next Outside IR35 contract, I'd be keen to speak with you. Apply today or send me a message for more information.