Data Engineer (Python)
| Posting date: | 27 November 2025 |
|---|---|
| Salary: | £400.0 to £450.0 per day |
| Additional salary information: | 450 |
| Hours: | Full time |
| Closing date: | 04 December 2025 |
| Location: | London, London, L1 2LZ |
| Company: | Hays Specialist Recruitment |
| Job type: | Contract |
| Job reference: | 4750750_1764250469 |
Summary
About the RoleWe are looking for a Python Data Engineer with strong hands-on experience in Behave-based unit testing, PySpark development, Delta Lake optimisation, and Azure cloud services. This role focusses on designing and deploying scalable data processing solutions in a containerised environment, emphasising maintainable, configurable, and test-driven code delivery.
Key Responsibilities
- Develop and maintain data ingestion, transformation, and validation pipelines using Python and PySpark.
- Implement unit and behavior-driven testing with Behave, ensuring robust mocking and patching of dependencies.
- Design and maintain Delta Lake tables for optimised query performance, ACID compliance, and incremental data loads.
- Build and manage containerised environments using Docker for consistent development, testing, and deployment.
- Develop configurable, parameter-driven codebases to support modular and reusable data solutions.
- Integrate Azure services, including:
- Azure Functions for serverless transformation logic
- Azure Key Vault for secure credential management
- Azure Blob Storage for data lake operations
What We're Looking For
- Proven experience in Python, PySpark, and Delta Lake.
- SC Cleared
- Strong knowledge of Behave for test-driven development.
- Experience with Docker and containerised deployments.
- Familiarity with Azure cloud services and data engineering best practices.
- Ability to deliver scalable, maintainable, and testable solutions in a fast-paced environment.
If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.
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