Senior Data Engineer

Senior Data Engineer – Snowflake Platform Build

Location: London (2 days a week on site)

Contract: 6 month sign on (18–24 month project)

Interview process: 2 stages

twentyAI\’s customer is building a next version of their data platform, with Snowflake at the core. The PoC is in place — now they need someone who’s been through this before to lead the implementation and help scale the platform across the business.

The project involves migrating our current on-prem Data Lake to Snowflake, while keeping storage on a private cloud. You’ll be setting the foundations: building out ETL pipelines, establishing best practices, and working closely with teams across trading, finance, compliance, and ops.

Profile:

• Strong experience implementing Snowflake in a lead or senior capacity
• Solid background in Python, PySpark, and Spark
• Hands-on with platform setup – ideally with a DevOps-first approach
• Exposure to AWS environments
• Experience working with data from trading platforms or within commodities, banking, or financial services

Tech environment:

• Primary Platform: Snowflake
• Other Tech: DBT, Databricks, Spark, PySpark, Python
• Cloud: AWS (preferred), Private Cloud storage
• Data Sources: Financial/trading systems