Senior Data Engineer (Hands-On/Technical Lead Focus) Hybrid working - Central London Ashdown Group are partnering with an innovative, data-led organisation who are recruiting a Senior Data Engineer to take ownership of core data architecture and lead from the front technically. This is a hands-on senior role for someone who enjoys building robust data systems while mentoring others and raising engineering standards. The Role You will design, build, and optimise scalable data pipelines and models across Snowflake, Databricks, and cloud environments (AWS/GCP). Working closely with Data Science, Product, and Analytics teams, you''ll ensure reliable, high-performance data flows that power AI and analytics products. Alongside deep technical delivery, you''ll be responsible for leading the junior engineers and near shore partners as well as contribute to architectural direction and best practices. Key Responsibilities Design and maintain scalable data architectures across Snowflake and Databricks Lead schema design, dimensional modelling, and SQL performance optimisation Build robust ETL/ELT pipelines Develop resilient API ingestion workflows Implement data quality frameworks and enforce data contracts Build CI/CD pipelines and automated testing for data workflows Orchestrate pipelines using Airflow, Prefect, or Dagster Improve observability, monitoring, and lineage across data systems Mentor junior engineers and elevate engineering standards Ke