Senior Data Engineer (Python/PySpark and SQL)London (Hybrid - 3 days in office Monday, Tuesday, Wednesday)Up to 85,000 dependent on experienceRef: J13073We''re working with a fast-growing AI SaaS business where data sits at the core of everything they build.They''re looking for a Senior Data Engineer to take ownership of the pipelines that power their platform.You''ll be working with real-world, messy data and shaping it into reliable, decision-ready datasets used across product, analytics, and machine learning.Python/PySpark and SQL are central to the role.The Role: You''ll design and maintain data pipelines, handle edge cases, and ensure data quality as the platform scales. The environment is modern and cloud-based, using tools such as AWS, GCP or Azure, alongside Spark, Snowflake or BigQuery. You''ll also play a key role in supporting and mentoring other engineers through code reviews and collaboration. You''ll be joining a supportive team that values different perspectives, encourages thoughtful problem solving, and gives engineers the space to contribute in their own way.What we''re looking for: Strong Python and SQL experience in production Experience with Spark, Snowflake, BigQuery or similar Cloud experience (AWS, GCP or Azure) Comfortable working with complex, messy data Experience owning pipelines end-to-end Collaborative mindset with mentoring experienceIf you enjoy building the data foundations behind AI products, this could be a great fit. Get in touch today to f