We are looking for a visionary Hybrid Principal Data Engineer/Architect to build our data foundation from scratch. Reporting to the Head of Engineering, you will bridge the gap between complex scientific data and commercial software, owning the strategy, architecture, and initial codebase. The ideal Principal Data Engineer, will need to work from the head office Farringdon, paying up to £110,000 plus benefits. The Mission Own the Strategy: Design the architecture for ingestion, storage, and governance (moving to Databricks/Azure ). Build from Zero: Act as the most senior hands-on developer, writing production-grade Python/Spark code for core pipelines. Create Truth: Establish a "Single Source of Truth" across Salesforce, NetSuite, and internal portals using robust canonical modelling. Lead & Mentor: Act as the technical North Star for the engineering team, promoting IaC (Terraform) and CI/CD best practices. Your Toolkit Expertise: 7 years in Data Engineering with experience in a Lead or Principal capacity. Tech Stack: Deep knowledge of Databricks and the Azure ecosystem (ADF, Synapse, Cosmos DB). Coding: Expert-level Python and SQL ; experience with Terraform and containerization. Complexity: Comfortable handling scientific, geospatial, or supply-chain datasets. Why Join Us? Balance: 35 days holiday, hybrid working (2-3 days in Farringdon), and enhanced parental leave. Growth: Monthly wellbeing allowance and access to 110kbens professional development assets. Culture: Barista coffee, Friday lunches, and a dog-friendly office.