Senior Data Engineer

Senior Data Engineer (Financial Services), London

Rate: up to £600 per day (Outside IR35)

Length: 6 months inital, possibility of extension, starting June 2026.

Working Pattern: 2 days on-site (Liverpool St.) per week.

Opus are working with a leading financial services firm who're decommissioning their legacy on‑prem data warehouse and migrating all critical workloads to Snowflake on AWS. They need a contract Senior Data Engineer to rebuild pipelines, refactor legacy ETL, and ensure a clean cutover for regulatory and analytics teams. You'll be joining an existing team of 3 Data Engineers and one Architect who're working on this project.

Responsibilites:

Snowflake migration - Rebuild models, schemas, and ELT pipelines

AWS data engineering - Glue, Lambda, S3, Step Functions

Legacy decommissioning - Analyse ETL, lineage, dependencies

Data reconciliation - Validate parity between old and new platformsRequirments:

Strong Snowflake and AWS senior engineering experience

Excellent Python and SQL

Ideally, a background in financial services

Experience migrating legacy data warehouses

Contact:

Please reach out to Adam Akhtar at Opus Recruitment Solutions for more information