Mid-Level Python Developer (Outside IR35)

A significant opportunity to work with a leading global independent financial services firm, delivering a loan management platform that handles complex servicing workflows in a regulated environment. You’ll be working to a high bar for correctness, traceability and testing - and you’ll be based out of excellent offices in central London three days a week., * Building and maintaining Python services - FastAPI applications and Azure Functions

• Designing and consuming REST APIs, with an eye on validation, versioning and clear contracts
• Working with MS SQL Server: query tuning, stored procedures and migrations
• Working with Azure infrastructure - storage, queues, app configuration, monitoring
• Writing and maintaining automated tests
• Debugging and resolving defects in a live platform, including root cause analysis

• Solid commercial Python (typically 3+ years)
• Production experience with FastAPI, or a close equivalent such as Flask or Django REST
• Practical experience building serverless services on Azure Functions
• Strong MS SQL Server - you can write and optimise non-trivial queries, not just ORM calls
• Working knowledge of Azure cloud services and infrastructure
• Git, CI/CD pipelines, and a genuine testing habit
• Comfortable working directly with client stakeholders

Nice to have

• Financial services, lending or another regulated domain
• SQLAlchemy or Alembic
• Infrastructure as code (Bicep or Terraform)
• Azure DevOps
• Experience in a consultancy or client-facing delivery setting